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Indie alternatives to OpenAI API
3 products made by independent developers and small teams that do what OpenAI API does, 3 of them with a free plan. Free and open-source options come first.
At a glance
| Product | Price | Open source | Self-host | Platforms |
|---|---|---|---|---|
| LocalAI | Free | Yes | Yes | Self-hosted, Linux, Mac |
| Ollama | Free plan | – | Yes | Mac, Windows, Linux |
| OpenRouter | Free plan | – | – | API, Web |
The alternatives
3. OpenRouter
One API for hundreds of LLMs from many providers
OpenRouter is a unified, OpenAI-compatible API that routes requests to models from many AI providers with fallback and usage tracking.
Free plan · API, Web · Website ↗
Questions
Is there a free alternative to OpenAI API?
Yes. 3 of the 3 indie alternatives listed here have a free plan or are free: LocalAI, Ollama and OpenRouter.
Is there an open-source alternative to OpenAI API?
LocalAI is open source.
Can I self-host an alternative to OpenAI API?
Yes: LocalAI and Ollama can run on your own server.
Which OpenAI API alternatives work on Mac, Windows, iPhone or Android?
On Mac: LocalAI and Ollama. On Windows: Ollama. On Linux: LocalAI and Ollama. On the web: OpenRouter.
What makes these alternatives to OpenAI API “indie”?
They are built by independent developers or small teams rather than large companies. Each one is listed because it does the same core job as OpenAI API.
Ask your AI instead
Add Indie Alternatives to ChatGPT, Claude or Cursor and ask “a cheaper OpenAI API alternative that works on my Mac” in your own words, with your budget and platform. Set it up
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