Cohere Rerank 4 Pro
Cohere Rerank 4 Pro is a reranking model from Cohere released on Dec 11, 2025. It reads text and writes relevance scores, with a 32K token context window.
- Modalities
- In / out price
- n/a
- Context
- 32K
- Max output
- 32K
- Released
- Dec 11, 2025
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Supported request parameters
What you can set when you call Cohere Rerank 4 Pro through an OpenAI compatible API.
- Temperature
temperature
More from Cohere
Embed 5 Fast
Embeddings128K contextTurns text into vectors for search and retrieval.
by cohereSep 30, 2026
Embed 5 Pro
Embeddings128K contextTurns text into vectors for search and retrieval.
by cohereSep 30, 2026
- 33K context
Reads text.
by cohereSep 9, 2026$0/M input tokens$0/M output tokens
- 256K context
Reads text. Tool calling, reasoning.
by cohereJun 17, 2026$0/M input tokens$0/M output tokens
- Index 9.9
Reads text. Tool calling, structured output, reasoning.
by cohereJun 9, 2026256K context$0/M input tokens$0/M output tokens
- Index 13.1
Reads text and images. Tool calling, structured output, reasoning. Served by 2 providers.
by cohereMay 20, 2026192K context$0.30/M input tokens$1.50/M output tokens2 providers
Cohere Rerank 4 Pro questions
What is the context window of Cohere Rerank 4 Pro?
32,000 tokens of input, and it can write up to 32,000 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Is Cohere Rerank 4 Pro open source?
No. Cohere serves it through an API only, so you cannot download the weights or host it yourself.
When was Cohere Rerank 4 Pro released?
Dec 11, 2025.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Cohere Rerank 4 Pro?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
Book Meeting