Free LLM APIs and platforms

9 LLM APIs and platforms you can start using for free, including free plans and open-source options. Every pick below was checked on its official site. Pricing changes, so confirm the current plan before you rely on it.

Google AI StudioFree plan

LLM APIs and platforms

Google’s workspace for prototyping with Gemini and getting an API key.

OpenRouterFree plan

LLM APIs and platforms

One API for many AI models, with model and price comparison.

GroqFree plan

LLM APIs and platforms

A cloud for fast AI inference on its own hardware.

Hugging FaceFree plan

LLM APIs and platforms

The open-source AI hub for models, datasets and demo Spaces.

Mistral AIFree plan

LLM APIs and platforms

European lab offering open-weight models, an API studio and the Le Chat assistant.

OllamaFree plan

LLM APIs and platforms

Run open AI models locally on macOS, Windows and Linux, or in the cloud.

LM StudioFree plan

LLM APIs and platforms

Run local LLMs on your machine; its Bionic agent handles docs and code.

CerebrasFree plan

LLM APIs and platforms

AI inference on wafer-scale chips, available through an API.

AI SDKOpen source

LLM APIs and platforms

Vercel’s open-source TypeScript SDK for building AI apps across models.

Free LLM APIs and platforms

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