Cohere Rerank 4 Pro
Summary
Cohere Rerank 4 Pro is a proprietary language model from Cohere, released on 11 Dec 2025. It accepts text and generates text, with a 32K-token context window and up to 32K output tokens per response.
Multilingual reranker for maximum relevance on documents and semi-structured data
Last verified 21 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | Cohere |
|---|---|
| Release date | 11 Dec 2025 [models.dev] |
| Status | Generally available [models.dev] |
| Weights | Proprietary (API only) [models.dev] |
| Context window | 32K (32,000 tokens) [models.dev] |
| Max output | 32K tokens [models.dev] |
| Input | Text [models.dev] |
| Output | Text [models.dev] |
| Reasoning mode | No [models.dev] |
| Tool calling | No [models.dev] |
Cohere Rerank 4 Pro API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| Vercel AI Gateway cohere/rerank-v4-pro | – | – | – | 32K | models.dev, 21 Oct 2026 |
Frequently asked questions
What is the context window of Cohere Rerank 4 Pro?
Cohere Rerank 4 Pro has a context window of 32,000 tokens (32K) and can generate up to 32,000 tokens in a single response, according to models.dev.
Is Cohere Rerank 4 Pro open source?
No. Cohere Rerank 4 Pro is a proprietary model; Cohere has not released its weights. It is available through APIs including Vercel AI Gateway.
When was Cohere Rerank 4 Pro released?
Cohere released Cohere Rerank 4 Pro on 11 Dec 2025, according to models.dev.
Change history
- Added to the directory
- Now listed on Vercel AI Gateway