We aggregated 100+ free AI models into one endpoint
Over two days we wired 15 free providers into UnoRouter: 134 free model rows, one OpenAI-compatible endpoint, $0 per token. They are free for a reason and carry rate limits we cannot raise. Here is the honest version.
The free-LLM landscape is real but scattered: Groq, Gemini, Cloudflare, Mistral, OVHcloud and a dozen others each give away genuine capacity, behind a dozen signup pages, a dozen key formats, and a dozen incompatible APIs. Over two days we discovered, tested, and merged every legitimate permanent-free provider we could into UnoRouter. The result: 134 free model rows from 15 providers behind one OpenAI-compatible endpoint and one key.
What we added
Fifteen free providers, one at a time: Groq, Gemini, Cerebras, SambaNova, Mistral, Cloudflare Workers AI (two accounts), GitHub Models, Z.ai, OVHcloud, AI Horde, Pollinations, Cohere, Jina, NVIDIA NIM, and OpenRouter. That is 134 free model rows: Llama, gpt-oss, Qwen, Mistral, GLM, Nemotron and more, plus 30 free embedding models and 13 free image and audio models. Every one is probed end to end for HTTP, streaming, and tool calls before it goes live, the same authenticity and harness checks we run on paid models.
Free for a reason
These models are genuinely free, and that is exactly why they have limits. The provider sets those limits, not us, and we cannot raise them. Each upstream enforces its own rate limits: requests per minute, daily token quotas, Cloudflare neuron budgets, volunteer-queue priority. Hit a cap and that provider returns 429 until it resets. A free key that worked this morning can be exhausted by this afternoon. Free tier is best-effort throughput, not a guarantee. If your workload needs predictable latency and no surprise 429s, use a paid model.
Why aggregate them at all
Because the alternative is fifteen accounts. Each provider has its own signup, its own key format, its own base URL, and its own quirks: Z.ai speaks the Zhipu V4 path, Cloudflare carries the account id in the URL, AI Horde wants an anonymous key, GitHub gates models behind a token scope. We absorbed all of that so you call them the way you call everything else: one OpenAI-compatible endpoint, one key, a model name. The honest rule we hold ourselves to: one real account per provider, caps accepted, nothing farmed, nothing pooled. We expose the free tier as a gift, not as a resale of someone else's quota.
How we soften the limits
BLOG.POSTS.FREE_MODELS_AGGREGATED.P_FAILOVER
What we did not do
We did not add reverse proxies that re-serve OpenAI or Claude flagships without permission. We did not pull in personal-key aggregators whose tokens are non-transferable, or pool-of-pools services that farm and rotate other people's keys. Those exist and they are tempting and they are exactly the gray-market mess this gateway is meant to replace. Every provider on the list gives its free tier away on purpose, under its own terms. If a source could not pass that bar, it is not here.
Try it
BLOG.POSTS.FREE_MODELS_AGGREGATED.CTA
Link your account for $1, boost the server for $1 every month, hunt bugs for up to $50. We just opened the UnoRouter Discord.
Many image models advertise multi-reference editing, but availability across resellers varies wildly. We sent a fixed 6-image scene-composition prompt to every image channel in our catalog. 332 channel runs, 136 unique models, 54 with at least one verified passing provider.
We probed 8 popular Claude resellers for 17 days. 183 of their channels were not Claude at all. Most were Kiro Cascade or Codeium wearing a Claude name tag. Names, numbers, and the script we used so you can test your own provider.