Cohere API
Cohere API
Cohere API provides enterprise-grade LLM services — Command R/R+ models, Embed embeddings, Rerank reranking; focused on enterprise RAG and data privacy.
RAG-focused (Command R model optimized for RAG)
General LLM capability lags GPT-4/Claude Opus (positioning is enterprise RAG correctly)
Sign up at dashboard.cohere.com for a trial API key. Cohere SDK: co.chat(model="command-r-plus", message="...")
Uptime · 30-day window
About this API
Cohere is a Canadian LLM company founded 2019 by Aidan Gomez (one of the "Attention Is All You Need" paper authors). Unlike OpenAI/Anthropic, Cohere doesn't target consumer market (no ChatGPT-like product), focusing on enterprise RAG and data privacy. Strongest in Embeddings + Rerank combo: Embed-v3 is one of the top multilingual embedding models (high-quality for Chinese, Japanese, French); Rerank service reorders top-100 first-stage search results into more relevant top-10 (essential for many production RAG apps). Command R+ is its chat model, RAG-trained (understands retrieved context better than general LLMs). Customers mostly in finance, healthcare, government — privacy-sensitive industries; Cohere supports VPC deployment and on-prem.
What you can build
- 1Enterprise RAG apps (including sensitive finance/healthcare)
- 2High-quality embeddings (multi-lingual)
- 3Rerank to improve search result relevance
- 4Enterprise chatbot private deployment
Strengths & limitations
Strengths
- RAG-focused (Command R model optimized for RAG)
- Strong multi-lingual (including Asian languages like Chinese)
- Enterprise focus on privacy and compliance
- Industry-leading Rerank service
Limitations
- General LLM capability lags GPT-4/Claude Opus (positioning is enterprise RAG correctly)
- Ecosystem smaller than OpenAI/Anthropic
Example request
curl https://cohere.com/<endpoint> \
-H "Authorization: Bearer $API_KEY"
# Some providers use X-Api-Key instead — verify in the docs.Getting started
Sign up at dashboard.cohere.com for a trial API key. Cohere SDK: co.chat(model="command-r-plus", message="...")
FAQ
Cohere vs. OpenAI embeddings?+
Cohere Embed-v3 is stronger multilingual (OpenAI text-embedding-3 primarily English-trained). For Chinese RAG, try Cohere.
What is Rerank?+
Two-stage retrieval: first step uses embedding to fetch top-100 candidates; Rerank re-scores to pick truly most relevant top-10. Significantly lifts RAG quality.
Technical details
- Auth type
- api_key
- Pricing
- paid
- Rate limit
- tier 1 1000 calls/分;自助升级
- Protocols
- REST
- SDKs
- python, typescript, go, java
- Response time
- 234 ms
- Last health check
- 5/12/2026, 7:37:13 AM