Free AI APIs compatible with OpenAI Chat Completions

Only free APIs with verified chat_completions compatibility are included.

Protocol: chat_completions

Providers

Matching resources

Groq (1)

  • Groq Free Plan API

    Provider: Groq

    What you get

    Groq Free Plan provides model-specific free API rate limits.

    Requirements

    No card; Mainland status unknown; 额度按模型和组织变化，以官方 Free Plan Limits 表为准。

    How to claim
    1. Read the Free Plan Limits table.
    2. Choose a model that fits the limits.
    3. Create a Groq API key and call the API.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    model-specific RPM/RPD/TPM/TPD daily

View all resources from this provider

  1. Groq Free Plan API

    Provider: Groq

    What you get

    Groq Free Plan provides model-specific free API rate limits.

    Requirements

    No card; Mainland status unknown; 额度按模型和组织变化，以官方 Free Plan Limits 表为准。

    How to claim
    1. Read the Free Plan Limits table.
    2. Choose a model that fits the limits.
    3. Create a Groq API key and call the API.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    model-specific RPM/RPD/TPM/TPD daily

Hugging Face Inference (1)

  • Monthly Inference Providers Credits

    Provider: Hugging Face Inference

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; 免费用户；额度仅用于通过 Hugging Face 路由的请求，官方注明可能调整。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    0.1 USD inference credit monthly

View all resources from this provider

  1. Monthly Inference Providers Credits

    Provider: Hugging Face Inference

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; 免费用户；额度仅用于通过 Hugging Face 路由的请求，官方注明可能调整。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    0.1 USD inference credit monthly

Mistral AI (1)

  • Mistral Studio Free Mode

    Provider: Mistral AI

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; API 默认开放；具体用量与速率限制以 Studio 账号为准。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    account-defined API quota account_defined

View all resources from this provider

  1. Mistral Studio Free Mode

    Provider: Mistral AI

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; API 默认开放；具体用量与速率限制以 Studio 账号为准。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    account-defined API quota account_defined

OpenRouter (22)

  • Cohere: North Mini Code (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

View all resources from this provider

  1. Cohere: North Mini Code (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  2. Deepgram: Flux TTS (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  3. Fish Audio: S2.1 Pro Free (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  4. Free Models Router

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  5. Google: Gemma 4 26B A4B (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  6. Google: Gemma 4 31B (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  7. inclusionAI: Ling 3.0 Tiny (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  8. LiquidAI: LFM2.5-2.6B (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  9. NVIDIA: Llama Nemotron Embed VL 1B V2 (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  10. NVIDIA: Llama Nemotron Rerank VL 1B V2 (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  11. NVIDIA: Nemotron 3 Embed 1B (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  12. NVIDIA: Nemotron 3 Nano 30B A3B (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  13. NVIDIA: Nemotron 3 Nano Omni (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  14. NVIDIA: Nemotron 3 Super (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  15. NVIDIA: Nemotron 3 Ultra (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  16. NVIDIA: Nemotron 3.5 Content Safety (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  17. NVIDIA: Nemotron 3.5 Lightning (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  18. NVIDIA: Nemotron Nano 12B 2 VL (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  19. NVIDIA: Nemotron Nano 9B V2 (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  20. OpenAI: gpt-oss-20b (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  21. Poolside: Laguna S 2.1 (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

  22. Poolside: Laguna XS 2.1 (free)

    Provider: OpenRouter

    What you get

    Access free models on OpenRouter with a shared free allowance.

    Requirements

    No card; Mainland status unknown; 免费模型共享每日请求额度；购买额度后上限可能提高。

    How to claim
    1. Open the official model catalog.
    2. Choose a model marked free.
    3. Create an API key as instructed.
    Official evidence / verified

    Official evidence / verifiedofficial_api

    50.0 requests daily

SambaNova (5)

  • DeepSeek-V3.1 Free Tier

    Provider: SambaNova

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; 账号未绑定付款方式时自动使用 Free Tier。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    200000.0 tokens per model daily

View all resources from this provider

  1. DeepSeek-V3.1 Free Tier

    Provider: SambaNova

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; 账号未绑定付款方式时自动使用 Free Tier。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    200000.0 tokens per model daily

  2. DeepSeek-V3.2 Free Tier

    Provider: SambaNova

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; 账号未绑定付款方式时自动使用 Free Tier。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    200000.0 tokens per model daily

  3. gemma-4-31B-it Free Tier

    Provider: SambaNova

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; 账号未绑定付款方式时自动使用 Free Tier。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    200000.0 tokens per model daily

  4. gpt-oss-120b Free Tier

    Provider: SambaNova

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; 账号未绑定付款方式时自动使用 Free Tier。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    200000.0 tokens per model daily

  5. Meta-Llama-3.3-70B-Instruct Free Tier

    Provider: SambaNova

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland status unknown; 账号未绑定付款方式时自动使用 Free Tier。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    200000.0 tokens per model daily

SiliconFlow (1)

  • SiliconFlow Free Models

    Provider: SiliconFlow

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland supported; 完成实名认证；选择模型广场中未带 Pro/ 前缀的免费模型。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    model-specific fixed rate limit model_defined

View all resources from this provider

  1. SiliconFlow Free Models

    Provider: SiliconFlow

    What you get

    A public free-token allowance.

    Requirements

    No card; Mainland supported; 完成实名认证；选择模型广场中未带 Pro/ 前缀的免费模型。

    How to claim
    1. Open the provider page.
    2. Confirm eligibility and limits.
    3. Start according to the official instructions.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    model-specific fixed rate limit model_defined

Zhipu AI (1)

  • CogView-3-Flash Free Image API

    Provider: Zhipu AI

    What you get

    CogView-3-Flash provides an official free image-generation API.

    Requirements

    No card; Mainland supported; 免费，但官方未公布固定日额度，以账号速率限制为准。

    How to claim
    1. Register and create a Zhipu API key.
    2. Call the image-generation endpoint.
    3. Download the image returned by the console.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    account rate limit variable

View all resources from this provider

  1. CogView-3-Flash Free Image API

    Provider: Zhipu AI

    What you get

    CogView-3-Flash provides an official free image-generation API.

    Requirements

    No card; Mainland supported; 免费，但官方未公布固定日额度，以账号速率限制为准。

    How to claim
    1. Register and create a Zhipu API key.
    2. Call the image-generation endpoint.
    3. Download the image returned by the console.
    Official evidence / verified

    Official evidence / verifiedofficial_page

    account rate limit variable

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