Free AI Router · free LLM API radar | risk review of free AI API sites

// STATIONS 143 sites · page 3/6

Official (free tier)Up

api.x.ai

Source · mnfst/awesome-free-llm-apis

Overviewapi.x.ai is xAI's (Elon Musk's company) official paid API endpoint for the Grok LLMs, OpenAI-compatible; primarily pay-as-you-go, with a limited new-user trial credit and a (repeatedly changed) data-sharing credit program.

Free quotaNo permanent free tier. New accounts typically get ~$25 in promotional trial credit (varies by promotion/region/verification, expires in ~30 days and does not carry over). A historical 'data sharing program' once gave $150/month but required first spending $5, opting in to use your API requests for model training, and was non-revocable once enabled at team level; that $150 program is reported to have been changed/ended around May 2025 — rely on what your xAI Console actually shows now.

Free modelsGrok (试用额度内可调用当前 Grok API 模型，如 grok-2 / grok 系列，具体以官方目录为准)

See api.x.ai's free quota / risk review →api.x.ai

Official (free tier)Up

hyperbolic.xyz

Source · 12britz/awesome-free-models

OverviewHyperbolic is an open-access GPU and AI inference cloud offering an OpenAI-compatible API to models like DeepSeek, Llama 3.1 405B and Qwen; new users get a small trial credit and regular use is pay-as-you-go.

Free quotaNew users get about $1 in trial credit to call DeepSeek V3, Llama 3.1 405B, Qwen, etc.; pay-as-you-go once used up (e.g. Llama 405B ~$4/M, DeepSeek R1 ~$3/M tokens).

Free modelsDeepSeek V3 DeepSeek R1 Llama 3.1 405B Qwen 系列

See hyperbolic.xyz's free quota / risk review →hyperbolic.xyz

Official (free tier)Up

novita.ai

Source · 12britz/awesome-free-models

OverviewNovita AI is a developer-focused AI/agent inference cloud offering an OpenAI-compatible API to models like DeepSeek, Qwen and Llama; new users get a small free credit and regular use is pay-as-you-go.

Free quotaNew users get about $0.50 in free credit for text/image API testing (~60 RPM); a referral program gives $10 each to referrer and referee, up to $500 total. Pay-as-you-go once used up.

Free modelsDeepSeek 系列 Qwen 系列 Llama 系列

See novita.ai's free quota / risk review →novita.ai

Official (free tier)Up

api.bfl.ai

Source · 12britz/awesome-free-models

OverviewOfficial image-generation API from Black Forest Labs (the maker of the FLUX diffusion models), billed by credits (1 credit = $0.01); it is a paid image API, not a free LLM chat API.

Free quotaUnknown; officially pay-as-you-go (credit-based). Whether signup grants a small trial credit must be confirmed on dashboard.bfl.ai; no public, ongoing free allowance is advertised.

Free modelsUnknown

See api.bfl.ai's free quota / risk review →api.bfl.ai

Free public relayUp

chatanywhere.tech

Source · chatanywhere/GPT_API_free

OverviewChatAnywhere is a well-known free LLM relay: bind your GitHub account to get a free API key and call GPT, DeepSeek, Claude, Gemini, Grok and other mainstream models through an OpenAI-compatible interface, with low-latency direct access from mainland China.

Free quotaBind GitHub to get a free key; 10,000 points/day with per-model limits: GPT-5/GPT-4o/GPT-4.1 5 calls/day, DeepSeek series 30 calls/day, GPT-4o-mini/GPT-3.5-turbo etc. 100 calls/day; roughly 200 requests/day total per IP&Key. Personal non-commercial use only.

Free modelsgpt-5 gpt-4o gpt-4.1 gpt-4o-mini gpt-3.5-turbo deepseek-r1+7

See chatanywhere.tech's free quota / risk review →chatanywhere.tech

Commercial aggregatorUp

aihubmix.com

Source · qixing-jk/all-api-hub

OverviewAIHubMix is a long-running commercial AI API aggregation relay (One API family) offering ~300 models (GPT/Claude/Gemini/DeepSeek/GLM, etc.) through an OpenAI-compatible endpoint on pay-as-you-go billing, plus a set of $0-priced free models subject to quotas.

Free quotaSign up without a credit card; before the first top-up, all free models share 10 trial calls (never expire). After topping up ≥$1, free models are permanently usable at roughly 100 requests/day, 10 requests/min and 1M tokens/day (some heavier models capped at 33–50/day), reset daily; exceeding returns 429.

Free modelscoding-glm-5.3-free coding-kimi-k3-free coding-minimax-m3-free xiaomi-mimo-v2.6-pro-free xiaomi-mimo-v2.6-flash-free minimax-m2.7-free+7

See aihubmix.com's free quota / risk review →aihubmix.com

Free productUp