Foundation Model APIs

First-party APIs from the labs that build the models. You get the newest capabilities and the most reliable quality, in exchange for per-token pricing and a hosted dependency.

Anthropic Claude

Anthropic

Frontier LLM API with strong tool-use and long-context reasoning, ideal as an agent's core model

APIProprietary

#llm #tool-use #reasoning #api

Paid

Google Gemini

Google

Google's Gemini models via the AI Studio API — long context, multimodal, with a free tier

APIProprietary

#llm #multimodal #long-context #free-tier

Free tier Paid

Groq

Ultra-fast inference API for open models on custom LPU hardware

APIProprietary

#llm #inference #fast #api

Free tier Paid

Mistral AI

European model lab with strong open-weight models and a hosted API (La Plateforme)

APIProprietary

#llm #open-weights #api #europe

Free tier Paid

OpenAI

OpenAI's GPT models via the API — function calling, structured outputs, and the de-facto API shape

v2.48.02026-07-23APIProprietary

#llm #function-calling #structured-output #api

31.2k Paid