Best Alternatives to Anthropic API

Vercel AI SDK

Trust Score 88 · Good

88

Unified TypeScript SDK for building AI-powered streaming UIs with any LLM provider — OpenAI, Anthropic, Google, and more.

OpenAI API

Trust Score 87 · Good

87

The most widely used LLM API. Powers GPT-4o and o1 models with best-in-class reasoning, vision, and structured outputs. Largest ecosystem of tutorials, integrations, and community support.

Google Gemini API

Trust Score 86 · Good

86

Google's Gemini models offer best-in-class multimodal reasoning, a 2M token context window, and generous free tier via Google AI Studio.

Groq API

Trust Score 63 · Fair

63

The fastest LLM inference API available. Groq's LPU hardware delivers 10-20x faster token generation than GPU-based providers, making it ideal for latency-sensitive applications.

Cohere

Trust Score 63 · Fair

63

Enterprise-focused AI platform specializing in text understanding, embeddings, and RAG. Cohere's Embed and Rerank models are industry-leading for production search and retrieval.

Mistral API

Trust Score 53 · Caution

53

European AI company offering high-quality open-weight models via API. Mistral models excel at code and reasoning with competitive pricing and EU data residency options.