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MODEL DEVELOPER

01.AI

The platform announcement says new registrations and top-ups stopped on 2026-08-03; model demos and APIs stopped at 24:00 on 2026-09-03. Refund applications remain open until 24:00 on 2026-12-03. No timezone is given. Weight availability and licenses are checked separately.

Official documentation
On this page

Explore this developer’s model families

Listed families
4
Versions
27
Field review
0

0 entries use official model documentation and 27 use model-card metadata. Explore specifications, uses, prices and release records by version.

Filter these versions in the directory →View coverage →

About the organization

Brand identity, legal entity, ownership and finances are recorded separately. API service changes do not establish that the company has ceased operating.

No organization profile yet. See the official information and specifications for the models below.

Model families

Yi →12 versions

Distinguish Yi base, Chat, long-context and quantized weights by full model name. API platform shutdown status is not applied to weights.

Yi-1.5 →10 versions

Check Yi-1.5 tasks, access and license statements for each weight revision. Family announcement dates are not applied to every variant.

Yi-Coder →3 versions

Verify exact Yi-Coder weight identities and primary tasks. Parameters, capabilities and full commercial terms are reviewed separately.

Yi-VL →2 versions

Check Yi-VL image–text tasks, exact weights and references against official model cards.

Billing & payment details

Check the developer’s official terms for billing plans and payment conditions.API usage and subscription benefits are separate. Listed and settlement currencies may differ; actual payment depends on your account conditions.

Developer model prices

Images are priced per image, video per second and music per track. Compare within the same currency and unit, and check official pricing for usage conditions.

No prices match this mode, tier and currency. Try Standard or check the recorded quotes below. Missing prices remain blank.

All quotes, future prices and conditions (0 records)

    No prices are recorded for this version. Check the official pricing page.

    Versions at a glance

    • Yi-1.5-34B-32K →

      01-ai/Yi-1.5-34B-32K

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-1.5-34B-Chat-16K →

      01-ai/Yi-1.5-34B-Chat-16K

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-1.5-34B-Chat →

      01-ai/Yi-1.5-34B-Chat

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-1.5-34B →

      01-ai/Yi-1.5-34B

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-1.5-6B →

      01-ai/Yi-1.5-6B

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-1.5-6B-Chat →

      01-ai/Yi-1.5-6B-Chat

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-1.5-9B-32K →

      01-ai/Yi-1.5-9B-32K

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-1.5-9B-Chat-16K →

      01-ai/Yi-1.5-9B-Chat-16K

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-1.5-9B-Chat →

      01-ai/Yi-1.5-9B-Chat

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-1.5-9B →

      01-ai/Yi-1.5-9B

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-34B-200K →

      01-ai/Yi-34B-200K

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-34B →

      01-ai/Yi-34B

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-34B-Chat-4bits →

      01-ai/Yi-34B-Chat-4bits

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-34B-Chat-8bits →

      01-ai/Yi-34B-Chat-8bits

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-34B-Chat →

      01-ai/Yi-34B-Chat

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-6B-200K →

      01-ai/Yi-6B-200K

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-6B →

      01-ai/Yi-6B

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-6B-Chat →

      01-ai/Yi-6B-Chat

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-6B-Chat-4bits →

      01-ai/Yi-6B-Chat-4bits

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-6B-Chat-8bits →

      01-ai/Yi-6B-Chat-8bits

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-9B-200K →

      01-ai/Yi-9B-200K

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-9B →

      01-ai/Yi-9B

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-Coder-1.5B-Chat →

      01-ai/Yi-Coder-1.5B-Chat

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-Coder-9B-Chat →

      01-ai/Yi-Coder-9B-Chat

      Uses / inputs & outputs
      Chat

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-Coder-9B →

      01-ai/Yi-Coder-9B

      Uses / inputs & outputs
      Text completion

      Text → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-VL-34B →

      01-ai/Yi-VL-34B

      Uses / inputs & outputs
      Image understanding

      Text / Image → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    • Yi-VL-6B →

      01-ai/Yi-VL-6B

      Uses / inputs & outputs
      Image understanding

      Text / Image → Text

      Access and licensing
      Open weights

      Open weights · apache-2.0 · Commercial weight use unknown

      Limits & data status
      Context window: No single value specified

      Current status unknown

    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
    • 2023-11 · 10records
    • 2024-01 · 2records
    • 2024-03 · 2records

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

    1. Weights releasedYi-9B-200K weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    2. Weights releasedYi-9B weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    3. Weights releasedYi-VL-6B weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    4. Weights releasedYi-VL-34B weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    5. Weights releasedYi-6B-Chat weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    6. Weights releasedYi-6B-Chat-8bits weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    7. Weights releasedYi-6B-Chat-4bits weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    8. Weights releasedYi-34B-Chat-4bits weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    Show 6 earlier events
    1. Weights releasedYi-34B-Chat-8bits weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    2. Weights releasedYi-34B-Chat weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    3. Weights releasedYi-6B-200K weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    4. Weights releasedYi-34B-200K weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    5. Weights releasedYi-6B weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    6. Weights releasedYi-34B weights released →

      The official repository’s release date for this exact weight revision. API launches, papers and repository updates are recorded separately.

    References & scope

    Each version also lists its own specification and license references. A Chinese developer brand. The open platform, enterprise solutions and weight releases are verified separately. 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.