永久免费 LLM API 列表 (API 密钥)
LLM APIs with permanent free tiers for text inference.
All endpoints are OpenAI SDK-compatible unless noted. Each link points to the provider's API key page.
All of those free LLM APIs are available at manifest.build - make reliable agents.
## Contents - [Provider APIs](#provider-apis) - [Inference providers](#inference-providers) - [Glossary](#glossary) ## Provider APIs APIs run by the companies that train or fine-tune the models themselves. ### [Aion Labs](https://www.aionlabs.ai/app/api-keys/) Permanent free tier, no credit card required. 15 RPM, 20K tokens/day. Specialized for roleplay and storytelling. Base URL: `https://api.aionlabs.ai/v1` | Model Name | Context | Max Output | Modality | Rate Limit | | -------------------------------- | ------- | ---------- | ---------------- | --------------- | | `aion-labs/aion-2.0` | 128K | 32K | Text (reasoning) | 15 RPM, 20K TPD | | `aion-labs/aion-rp-llama-3.1-8b` | 32K | 32K | Text | 15 RPM, 20K TPD | | `aion-labs/aion-3.0` | 128K | 32K | Text (reasoning) | 15 RPM, 20K TPD | | `aion-labs/aion-3.0-mini` | 128K | 32K | Text (reasoning) | 15 RPM, 20K TPD | ### [Cohere](https://dashboard.cohere.com/api-keys) Free "Trial" API key, no credit card. 1,000 API calls/month. Non-commercial use only. Base URL: `https://api.cohere.com/v2` | Model Name | Context | Max Output | Modality | Rate Limit | | ------------------- | ------- | ---------- | ---------------- | ---------- | | Command A+ (218B) | 128K | 64K | Text + Image | 20 RPM | | Command A (111B) | 256K | 8K | Text | 20 RPM | | Command R+ | 128K | 4K | Text | 20 RPM | | Command R | 128K | 4K | Text | 20 RPM | | Command R7B | 128K | 4K | Text | 20 RPM | | Command A Reasoning | 256K | 32K | Text (reasoning) | 20 RPM | | Command A Translate | 8K | 8K | Text | 20 RPM | | Command A Vision | 128K | 8K | Text + Image | 20 RPM | | Command R7B Arabic | 128K | ~4K | Text | 20 RPM | | Aya Expanse 32B | 128K | 4K | Text | 20 RPM | | Aya Vision 32B | 16K | 4K | Text + Image | 20 RPM | ### [Google Gemini](https://aistudio.google.com/app/apikey) Free tier, no credit card. Free-tier prompts may be used by Google to improve products. [^1] Base URL: `https://generativelanguage.googleapis.com/v1beta` | Model Name | Context | Max Output | Modality | Rate Limit | | --------------------- | ------- | ---------- | ---------------------------- | ----------------- | | Gemini 3.7 Flash | 1M | 65K | Text + Image + Audio + Video | — | | Gemini 3.6 Flash | 1M | 65K | Text + Image + Audio + Video | 15 RPM, 1,500 RPD | | Gemini 3.5 Flash | 1M | 65K | Text + Image + Audio + Video | 15 RPM, 1,500 RPD | | Gemini 3.5 Flash-Lite | 1M | 65K | Text + Image + Audio + Video | 30 RPM, 1,500 RPD | | Gemini 3.1 Flash-Lite | 1M | 65K | Text + Image + Audio + Video | 30 RPM, 1,500 RPD | | Gemini 2.5 Flash | 1M | 65K | Text + Image + Audio + Video | 15 RPM, 1,500 RPD | | Gemini 2.5 Flash-Lite | 1M | 65K | Text + Image + Audio + Video | 30 RPM, 1,500 RPD | | Gemini 2.5 Pro | 1M | 65K | Text + Image + Audio + Video | 5 RPM, 50 RPD | | Gemma 4 31B | 256K | 32K | Text | — | | Gemma 4 26B A4B | 256K | 32K | Text | — | ### [Mistral AI](https://console.mistral.ai/api-keys) Free mode, enabled by default, no credit card required. $10/month in API credits, and free-mode prompts may be used to train Mistral models unless you opt out. [^13] Base URL: `https://api.mistral.ai/v1` | Model Name | Context | Max Output | Modality | Rate Limit | | ------------------------- | ------- | ---------- | ------------------- | ---------------- | | Mistral Medium 3.5 (128B) | 256K | — | Text + Image + Code | ~1 RPS, 500K TPM | | Mistral Small 4 | 256K | — | Text + Image + Code | ~1 RPS, 500K TPM | | Mistral Large 3 | 256K | — | Multimodal | ~1 RPS, 500K TPM | | Ministral 3 8B | 256K | — | Text + Vision | ~1 RPS, 500K TPM | | Codestral | 128K | — | Code | ~1 RPS, 500K TPM | | Ministral 3 3B | 256K | — | Text + Vision | ~1 RPS, 500K TPM | | Ministral 3 14B | 256K | — | Text + Vision | ~1 RPS, 500K TPM | ### [Z AI (Zhipu AI)](https://open.bigmodel.cn/usercenter/apikeys) Permanent free models, no credit card required. [^12] Base URL: `https://open.bigmodel.cn/api/paas/v4` | Model Name | Context | Max Output | Modality | Rate Limit | | ------------------------------------ | ------- | ---------- | ---------------- | -------------------- | | GLM-4.7-Flash | 200K | 128K | Text (reasoning) | 1 concurrent request | | GLM-4.5-Flash (retirement announced) | 128K | 96K | Text (reasoning) | 1 concurrent request | | GLM-4.6V-Flash | 128K | 32K | Multimodal | 1 concurrent request | ## Inference providers Third-party platforms that host open-weight models from various sources. ### [Cloudflare Workers AI](https://dash.cloudflare.com/profile/api-tokens) 10,000 Neurons/day free, no credit card required. 75+ models available on the free tier. [^11] Base URL: `https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/run` | Model Name | Context | Max Output | Modality | Rate Limit | | ---------------------------------------------- | ------- | ----------------- | ------------------------------ | ------------------------ | | `@cf/meta/llama-3.3-70b-instruct-fp8-fast` | 24K | Shared w/ context | Text | 10K neurons/day (shared) | | `@cf/meta/llama-4-scout-17b-16e-instruct` | 131K | Shared w/ context | Multimodal | 10K neurons/day (shared) | | `@cf/openai/gpt-oss-120b` | 128K | Shared w/ context | Text | 10K neurons/day (shared) | | `@cf/google/gemma-4-26b-a4b-it` | 256K | Shared w/ context | Text + Vision | 10K neurons/day (shared) | | `@cf/zai-org/glm-4.7-flash` | 131K | Shared w/ context | Text | 10K neurons/day (shared) | | `@cf/mistralai/mistral-small-3.1-24b-instruct` | 128K | Shared w/ context | Text | 10K neurons/day (shared) | | `@cf/deepseek-ai/deepseek-r1-distill-qwen-32b` | 80K | Shared w/ context | Text (reasoning) | 10K neurons/day (shared) | | + 72 more models | Varies | Varies | Text, Image, Audio, Embeddings | 10K neurons/day (shared) | ### [Groq](https://console.groq.com/keys) Free tier, no credit card. Ultra-fast LPU inference. [^2] Base URL: `https://api.groq.com/openai/v1` | Model Name | Context | Max Output | Modality | Rate Limit | | --------------------- | ------- | ---------- | -------- | ----------------- | | `openai/gpt-oss-120b` | 131K | 65K | Text | 30 RPM, 1,000 RPD | | `openai/gpt-oss-20b` | 131K | 65K | Text | 30 RPM, 1,000 RPD | | `groq/compound` | 131K | 8K | Text | 30 RPM, 250 RPD | | `groq/compound-mini` | 131K | 8K | Text | 30 RPM, 250 RPD | | `qwen/qwen3.6-27b` | 131K | 16K | Text | 30 RPM, 1,000 RPD | ### [Hugging Face](https://huggingface.co/settings/tokens) $0.10/month in Inference Provider credits for free users (subject to change). Routes to Fireworks, Together, Hyperbolic, Nebius, Novita, DeepInfra and others. Thousands of models. Base URL: `https://router.huggingface.co/v1` | Model Name | Context | Max Output | Modality | Rate Limit | | ------------------------------- | ------- | ---------- | ------------------------------ | -------------- | | Meta-Llama-3.1-8B-Instruct | 128K | ~4K | Text | Credit-metered | | gemma-3-4b-it | 131K | ~4K | Text | Credit-metered | | phi-4 | 16K | ~4K | Text | Credit-metered | | Qwen2.5-Coder-7B-Instruct | 131K | ~4K | Text | Credit-metered | | Qwen2.5-7B-Instruct | 131K | ~4K | Text | Credit-metered | | + thousands of community models | Varies | Varies | Text, Image, Audio, Embeddings | Credit-metered | ### [Kilo Code](https://app.kilo.ai/profile) Free models with no credit card and no API key required. `kilo-auto/free` auto-router dynamically routes to models in the free pool. [^5] Base URL: `https://api.kilo.ai/api/gateway` | Model Name | Context | Max Output | Modality | Rate Limit | | ---------------------------------------------------- | ------- | ---------- | ------------- | ---------- | | `nvidia/nemotron-3-ultra-550b-a55b:free` | 1M | 65K | Text | 200 req/hr | | `stepfun/step-3.7-flash:free` | 262K | 262K | Text + Vision | 200 req/hr | | `nvidia/nemotron-3-super-120b-a12b:free` | 262K | 262K | Text | 200 req/hr | | `nvidia/nemotron-3-nano-omni-30b-a3b-reasoning:free` | 256K | 65K | Multimodal | 200 req/hr | | `poolside/laguna-s-2.1:free` | 262K | 32K | Text (code) | 200 req/hr | | `poolside/laguna-xs-2.1:free` | 262K | 32K | Text (code) | 200 req/hr | | `cohere/north-mini-code:free` | 256K | 64K | Text (code) | 200 req/hr | | `openrouter/free` | Varies | Varies | Text | 200 req/hr | | `tencent/hy3:free` | 262K | 128K | Text | 200 req/hr | | `nvidia/nemotron-3.5-lightning:free` | 1M | 65K | Text | 200 req/hr | | `liquid/lfm-2.5-2.6b:free` | 64K | 8K | Text | 200 req/hr | ### [LLM7.io](https://token.llm7.io) API gateway with a free tier. Anonymous access needs no key and reaches the `turbo` models; a free token from token.llm7.io raises the rate and token limits but reaches the same models. [^10] Base URL: `https://api.llm7.io/v1` | Model Name | Context | Max Output | Modality | Rate Limit | | -------------------------- | ------- | ---------- | ---------------- | ----------------------------- | | `gpt-oss:20b` | 128K | —暂无开放 Issues,或尚未同步最近议题。