Free LLM APIs
Nine verified free LLM APIs - Gemini, Groq, OpenRouter, NVIDIA NIM, Mistral and more - with real rate limits, card rules, and the catch for each.
Phần này hiện bằng tiếng Anh.
Thông tin ưu đãi được kiểm chứng và hiển thị bằng tiếng Anh.
| Lựa chọn | Miễn phí gì | Thẻ | Điểm cần lưu ý |
|---|---|---|---|
| Google Gemini Developer API Free Tier | Free tier | Không | Pro previews, image generation (Nano Banana), Veo video, and Imagen are not available on the free tier; per-model rate limits apply. |
| Groq Free Tier | Free tier | Không | Rate limits apply at the organization level and are tight (e.g. 30 RPM and 1K RPD on many models); the docs caution limits may change and exceptions exist. |
| OpenRouter Free AI Models | 50 requests/day | Không | Free models allow 20 requests/minute and 50/day until you have bought 10 credits (then 1,000/day). A negative balance blocks them, and the lineup rotates (24 variants listed, 17 of them chat models). |
| NVIDIA NIM Free Inference Endpoints | Free tier | Không | Free endpoints are limited to catalog models tagged "Free Endpoint" and can be deprecated; you need a verified NVIDIA account and an API key, and no rate limits or SLA are published for the free tier. |
| Mistral AI Free Plan | Free tier | Không | Free plan has limited messages, web searches, and coding sessions; Vibe access is limited compared with paid plans. |
| Cohere Free Trial API | 1,000 requests/month | Không | Trial API keys are rate limited and not permitted for production or commercial use. |
| Z.AI Free API Tier | Free tier | Không | Free pricing applies only to the Flash models; limited-time free cached-input storage on paid models is promotional and can end. |
| LLM7.io Free Tier | 100,000 tokens/day | Không | Token usage counts input plus output combined against the daily cap, and per-second/minute/hour request limits apply; a free token is required for the 100,000 tokens/day allowance. |
| Pollinations Free API | Fully free | Không | Every generation request now requires an API key — there is no documented anonymous tier — and free-tier images may include watermarks. |