MODEL DEVELOPER

Anthropic

Explore Claude models, thinking modes and platform terms.

On this page

Explore this developer’s model families

Listed families: 1
Versions: 13
Field review: 2

11 entries use official model documentation and 0 use model-card metadata. Explore specifications, uses, prices and release records by version.

Filter these versions in the directory →View coverage →

About the organization

Anthropic PBC develops Claude. Company background and individual model-version evidence are kept separately.

Anthropic official company profile ↗

Anthropic PBC ↗

Company

Anthropic, the developer of Claude, is an AI safety and research company structured as a Public Benefit Corporation. It emphasizes reliability, interpretability and steerability, applying safety research to its products and partnerships.

Founded: Not provided; The founding date is not documented. Product launches, domain registration and filing dates are recorded separately.
Headquarters / public address: Not provided; The current headquarters address is not documented.
Entity & listing status: Listing status not documented; Current listing status and ticker symbols are not documented.

Research & products

Developer statementThe company focuses on reliable, interpretable and steerable frontier AI through safety research, products and interdisciplinary teams. This is its stated direction, not a model capability ranking.Anthropic official company profile ↗

Financial & funding snapshots

Dated official disclosures for Series A, G and H are retained. The latest reviewed round is Series H on 2026-05-28. The original $ symbol is preserved without assigning an ISO currency; the valuation is not a public market capitalization. Each round keeps its own announcement date.

融资金额 · 2026-05-28
$ 65 billion (currency unspecified)
The announcement uses the $ symbol without specifying an ISO currency. The amount is excluded from cross-currency comparisons.
Anthropic Series H announcement ↗
投后估值 · 2026-05-28
$ 965 billion (currency unspecified)
Official post-money valuation, separate from funding and market capitalization. The source’s $ symbol does not establish an ISO currency.
Anthropic Series H announcement ↗
融资金额 · 2026-02-12
$ 30 billion (currency unspecified)
The announcement uses the $ symbol without specifying an ISO currency. The amount is excluded from cross-currency comparisons.
Anthropic Series G announcement ↗
投后估值 · 2026-02-12
$ 380 billion (currency unspecified)
Official post-money valuation, separate from funding and market capitalization. The source’s $ symbol does not establish an ISO currency.
Anthropic Series G announcement ↗
融资金额 · 2021-05-28
$ 124 million (currency unspecified)
The announcement uses the $ symbol without specifying an ISO currency. The amount is excluded from cross-currency comparisons.
Anthropic Series A announcement ↗

History · 3 documented events

2026-05-28
Series H funding
Official funding announcement. The announcement date is not the company’s founding date.
Anthropic Series H announcement ↗
2026-02-12
Series G funding
Official funding announcement. The announcement date is not the company’s founding date.
Anthropic Series G announcement ↗
2021-05-28
Series A funding
Official funding announcement. The announcement date is not the company’s founding date.
Anthropic Series A announcement ↗

Anthropic official company profile ↗Anthropic Series A announcement ↗Anthropic Series G announcement ↗Anthropic Series H announcement ↗

Reviewed 2026-10-14 · References last checked 2026-10-14. Financial snapshots retain their own dates and currencies. Funding, valuations and market capitalization are recorded separately.

Model families

Claude →13 versions

Compare Claude generations by context, thinking modes and lifecycle.

Billing & payment details

Developer API

Listed currency: USD
Billing model: Prepaid / account credit / Contract / custom / Monthly / Usage-based

Console API, Playground and Claude Code usage generally draws from purchased credits. Purchased credits expire after one year, are nonrefundable and support optional auto-reload. Organizations with sales-arranged monthly billing may receive usage invoices after each calendar month; this is not a flat monthly subscription. Max/Team monthly API grants are separate from purchased balances and cannot be used for Claude Code or the Claude app. This page does not list settlement currencies; USD list prices do not establish settlement support. As of 2026-10-29.

Official sources ↗Official sources ↗

Billing, currencies and benefits apply to the products and dates shown.API usage and subscription benefits are separate. Listed and settlement currencies may differ; actual payment depends on your account conditions.

Developer model prices

Prices are per million text tokens, matched by currency, processing mode and input tier. Caching, tools, media and taxes may cost extra. These are not per-request or subscription totals. A listed price does not guarantee that a model is still available.

Quoted currencyProcessing modeInput tierTime-based pricing

Prices observed 2026-10-31 · Matching input tier 13 versions /1 developers.Other matching versions: 0 versions have no price under these conditions. Quoted currency does not imply payment support. Check each model’s own input limit before choosing a long-input tier.

Chart shows the first 12 records; matching values and sources are listed below. Input and output prices are separate. No currency conversion is applied.

USD/ million text tokens, Standard
Model / developer	Input	Output	Cache read	Tier / source
Claude Fable 5.1 →Anthropic · Recommended by provider	USD 10	USD 50	USD 0.25	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Opus 5.5 →Anthropic · Recommended by provider	USD 4	USD 20	USD 0.2	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Sonnet 5.5 →Anthropic · Recommended by provider	USD 2	USD 10	USD 0.1	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Haiku 5.5 →Anthropic · Recommended by provider	USD 0.1	USD 0.5	USD 0.01	Input ≤100K · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Sonnet 4.6 →Anthropic · Legacy series	USD 3	USD 15	USD 0.3	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Opus 4.6 →Anthropic · Legacy series	USD 5	USD 25	USD 0.5	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Fable 5 →Anthropic · Legacy series	USD 10	USD 50	USD 1	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Haiku 4.5 →Anthropic · Legacy series	USD 1	USD 5	USD 0.1	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Opus 4.5 →Anthropic · Legacy series	USD 5	USD 25	USD 0.5	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Opus 4.7 →Anthropic · Legacy series	USD 5	USD 25	USD 0.5	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Opus 4.8 →Anthropic · Legacy series	USD 5	USD 25	USD 0.5	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Opus 5 →Anthropic · Legacy series	USD 5	USD 25	USD 0.5	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29
Claude Sonnet 5 →Anthropic · Legacy series	USD 2	USD 10	USD 0.2	No extra input tier · All day No end date provided Official prices ↗ Last observed2026-10-29

All quotes, future prices and conditions (31 records)

Claude Fable 5.1 · Standard · No extra input tier · All day
Input USD 10 / output USD 50 / cache read USD 0.25 / 5 minutes cache write USD 12.5 / 1 hours cache write USD 20, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-14/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 5.5 · Standard · No extra input tier · All day
Input USD 4 / output USD 20 / cache read USD 0.2 / 5 minutes cache write USD 5 / 1 hours cache write USD 8, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-14/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 4.6 · Standard · No extra input tier · All day
Input USD 5 / output USD 25 / cache read USD 0.5 / 5 minutes cache write USD 6.25 / 1 hours cache write USD 10, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-14/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Sonnet 5.5 · Standard · No extra input tier · All day
Input USD 2 / output USD 10 / cache read USD 0.1 / 5 minutes cache write USD 2.5 / 1 hours cache write USD 4, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-14/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Sonnet 4.6 · Standard · No extra input tier · All day
Input USD 3 / output USD 15 / cache read USD 0.3 / 5 minutes cache write USD 3.75 / 1 hours cache write USD 6, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-14/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Haiku 5.5 · Standard · Input ≤100K · All day
Input USD 0.1 / output USD 0.5 / cache read USD 0.01 / 5 minutes cache write USD 0.125 / 1 hours cache write USD 0.2, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-14/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Haiku 5.5 · Standard · Input >100K · All day
Input USD 0.5 / output USD 2.5 / cache read USD 0.05 / 5 minutes cache write USD 0.625 / 1 hours cache write USD 1, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-14/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Fable 5.1 · Batch · No extra input tier · All day
Input USD 5 / output USD 25, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Fable 5 · Batch · No extra input tier · All day
Input USD 5 / output USD 25, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Fable 5 · Standard · No extra input tier · All day
Input USD 10 / output USD 50 / cache read USD 1 / 5 minutes cache write USD 12.5 / 1 hours cache write USD 20, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Haiku 4.5 · Batch · No extra input tier · All day
Input USD 0.5 / output USD 2.5, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Haiku 4.5 · Standard · No extra input tier · All day
Input USD 1 / output USD 5 / cache read USD 0.1 / 5 minutes cache write USD 1.25 / 1 hours cache write USD 2, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Haiku 5.5 · Batch · Input >100K · All day
Input USD 0.25 / output USD 1.25, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Haiku 5.5 · Batch · Input ≤100K · All day
Input USD 0.05 / output USD 0.25, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 4.5 · Batch · No extra input tier · All day
Input USD 2.5 / output USD 12.5, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 4.5 · Standard · No extra input tier · All day
Input USD 5 / output USD 25 / cache read USD 0.5 / 5 minutes cache write USD 6.25 / 1 hours cache write USD 10, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 4.6 · Batch · No extra input tier · All day
Input USD 2.5 / output USD 12.5, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 4.7 · Batch · No extra input tier · All day
Input USD 2.5 / output USD 12.5, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 4.7 · Standard · No extra input tier · All day
Input USD 5 / output USD 25 / cache read USD 0.5 / 5 minutes cache write USD 6.25 / 1 hours cache write USD 10, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 4.8 · Batch · No extra input tier · All day
Input USD 2.5 / output USD 12.5, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 4.8 · Fast · No extra input tier · All day
Input USD 10 / output USD 50, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 4.8 · Standard · No extra input tier · All day
Input USD 5 / output USD 25 / cache read USD 0.5 / 5 minutes cache write USD 6.25 / 1 hours cache write USD 10, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 5.5 · Batch · No extra input tier · All day
Input USD 2 / output USD 10, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 5.5 · Fast · No extra input tier · All day
Input USD 8 / output USD 40, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 5 · Batch · No extra input tier · All day
Input USD 2.5 / output USD 12.5, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 5 · Fast · No extra input tier · All day
Input USD 10 / output USD 50, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Opus 5 · Standard · No extra input tier · All day
Input USD 5 / output USD 25 / cache read USD 0.5 / 5 minutes cache write USD 6.25 / 1 hours cache write USD 10, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Sonnet 4.6 · Batch · No extra input tier · All day
Input USD 1.5 / output USD 7.5, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Sonnet 5.5 · Batch · No extra input tier · All day
Input USD 1 / output USD 5, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Sonnet 5 · Batch · No extra input tier · All day
Input USD 1 / output USD 5, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗
Claude Sonnet 5 · Standard · No extra input tier · All day
Input USD 2 / output USD 10 / cache read USD 0.2 / 5 minutes cache write USD 2.5 / 1 hours cache write USD 4, per million text tokens.
EffectiveSource not listed· EndedSource not listed· Superseded by a newer observationNot yet · First observed2026-10-17/ latest2026-10-29
Claude first-party text token prices use the default global route and retain processing modes, input-length conditions and 5-minute/1-hour cache writes. Regional premiums, tools, storage and taxes are separate. USD list prices do not establish settlement currency.
Check sources ↗

Versions at a glance

Versions & specifications
Versions	Uses / inputs & outputs	Access and licensing	Limits & data status
Claude Fable 5.1 → claude-fable-5-1	Chat · Image understanding · Agents Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Recommended by provider
Claude Opus 5.5 → claude-opus-5-5	Chat · Image understanding · Agents Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Recommended by provider
Claude Sonnet 5.5 → claude-sonnet-5-5	Chat · Image understanding · Agents Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Recommended by provider
Claude Haiku 5.5 → claude-haiku-5-5	Chat · Image understanding · Agents Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Recommended by provider
Claude Sonnet 4.6 → claude-sonnet-4-6	Chat · Coding · Reasoning · Image understanding · Agents Text / Image → Text	Official API Closed weights · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Legacy series
Claude Opus 4.6 → claude-opus-4-6	Chat · Coding · Reasoning · Image understanding · Agents Text / Image → Text	Official API Closed weights · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Legacy series
Claude Fable 5 → claude-fable-5	Chat · Image understanding Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Legacy series
Claude Haiku 4.5 → claude-haiku-4-5-20251001	Chat · Image understanding Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 200K Token Legacy series
Claude Opus 4.5 → claude-opus-4-5-20251101	Chat · Image understanding Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 200K Token Legacy series
Claude Opus 4.7 → claude-opus-4-7	Chat · Image understanding Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Legacy series
Claude Opus 4.8 → claude-opus-4-8	Chat · Image understanding Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Legacy series
Claude Opus 5 → claude-opus-5	Chat · Image understanding Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Legacy series
Claude Sonnet 5 → claude-sonnet-5	Chat · Image understanding Text / Image → Text	Official API Openness not specified · Weight license needs review · Commercial weight use unknown	Context window: 1M Token Legacy series

Claude Fable 5.1 →
claude-fable-5-1
Uses / inputs & outputs
Chat · Image understanding · Agents
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Recommended by provider
Claude Opus 5.5 →
claude-opus-5-5
Uses / inputs & outputs
Chat · Image understanding · Agents
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Recommended by provider
Claude Sonnet 5.5 →
claude-sonnet-5-5
Uses / inputs & outputs
Chat · Image understanding · Agents
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Recommended by provider
Claude Haiku 5.5 →
claude-haiku-5-5
Uses / inputs & outputs
Chat · Image understanding · Agents
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Recommended by provider
Claude Sonnet 4.6 →
claude-sonnet-4-6
Uses / inputs & outputs
Chat · Coding · Reasoning · Image understanding · Agents
Text / Image → Text
Access and licensing
Official API
Closed weights · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Legacy series
Claude Opus 4.6 →
claude-opus-4-6
Uses / inputs & outputs
Chat · Coding · Reasoning · Image understanding · Agents
Text / Image → Text
Access and licensing
Official API
Closed weights · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Legacy series
Claude Fable 5 →
claude-fable-5
Uses / inputs & outputs
Chat · Image understanding
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Legacy series
Claude Haiku 4.5 →
claude-haiku-4-5-20251001
Uses / inputs & outputs
Chat · Image understanding
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 200K Token
Legacy series
Claude Opus 4.5 →
claude-opus-4-5-20251101
Uses / inputs & outputs
Chat · Image understanding
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 200K Token
Legacy series
Claude Opus 4.7 →
claude-opus-4-7
Uses / inputs & outputs
Chat · Image understanding
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Legacy series
Claude Opus 4.8 →
claude-opus-4-8
Uses / inputs & outputs
Chat · Image understanding
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Legacy series
Claude Opus 5 →
claude-opus-5
Uses / inputs & outputs
Chat · Image understanding
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Legacy series
Claude Sonnet 5 →
claude-sonnet-5
Uses / inputs & outputs
Chat · Image understanding
Text / Image → Text
Access and licensing
Official API
Openness not specified · Weight license needs review · Commercial weight use unknown
Limits & data status
Context window: 1M Token
Legacy series

Release & lifecycle history

Release & lifecycle events

14 sourced events by month, including releases, deprecations and retirements. One event can cover several versions. These are release events in the current catalog, rather than newly added listings.

Monthly event counts

2024-06 · 1records
2025-10 · 1records
2025-11 · 1records
2026-02 · 2records
2026-04 · 1records
2026-05 · 1records
2026-06 · 2records
2026-07 · 1records
2026-09 · 3records
2026-10 · 1records

14 events; showing the latest 8 below. The chart includes all documented events.Open the full timeline →

2026-10-07Model releaseClaude Haiku 5.5 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2026-09-28Model releaseClaude Sonnet 5.5 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2026-09-22Model releaseClaude Opus 5.5 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2026-09-01Model releaseClaude Fable 5.1 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2026-07-24Model releaseClaude Opus 5 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2026-06-30Model releaseClaude Sonnet 5 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2026-06-09Model releaseClaude Fable 5 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2026-05-28Model releaseClaude Opus 4.8 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.

Show 6 earlier events

2026-04-16Model releaseClaude Opus 4.7 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2026-02-17Model releaseClaude Sonnet 4.6 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2026-02-05Model releaseClaude Opus 4.6 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2025-11-24Model releaseClaude Opus 4.5 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2025-10-15Model releaseClaude Haiku 4.5 releases →
The release date is stated on the official model page. It is separate from API ID suffixes and knowledge cutoffs.
2024-06-21Model releaseClaude 3.5 Sonnet announcement →
Anthropic introduced Claude 3.5 Sonnet as the first model in the Claude 3.5 family. The date follows the current official announcement page.

References & scope

Anthropic · Model lifecycle ↗Recorded / observed 2026-10-14
Anthropic · Claude Opus 4.6 model documentation ↗Recorded / observed 2026-10-14
Anthropic · Claude Sonnet 4.6 model documentation ↗Recorded / observed 2026-10-14
Anthropic official company profile ↗Recorded / observed 2026-10-14

Each version also lists its own specification and license references. Developer regions follow public organization records. They do not establish API availability, operating regions or a user’s location. Catalog as of 2026-10-31.

Find APIs, tools & benchmarks

Find APIs by model family, then check each service for the exact model, region and supported interfaces. Tools and reports link to specific versions.