Cohere

Model

API for Command, Embed and Rerank models for enterprise search and agents

Price: Free tier, then paid
Access: API key

About

Cohere's API serves Command chat models, Embed 4 embeddings, Rerank 4 and a document parser for RAG, search and agents. Trial keys are free but not for production. Command A+ is open weights (Apache 2.0); its API is capped at 20 calls/min and 1,000 a month, and production goes through sales.

What you can do with it

Rerank search results by relevance before sending them to an LLM
Embed text, images and PDFs for semantic search and RAG
Build multilingual chat and tool-using agents with Command A+

Get started

Sign up to get a free trial API key
Set CO_API_KEY in your environment
Request a production key before you go live

Example

curl --request POST \
  --url https://api.cohere.ai/v2/chat \
  --header 'accept: application/json' \
  --header 'content-type: application/json' \
  --header "Authorization: bearer $CO_API_KEY" \
  --data '{
    "model": "command-a-plus-05-2026",
    "messages": [{"role": "user", "content": "Write a title for a blog post about API design."}]
  }'

Details

Hosting: Hosted service, Self-hosted
Available in: Worldwide
Official SDKs: Python, JavaScript/TypeScript, Java, Go
MCP server: None