Rerank v4.0 Fast
cohere-rerank-v4-0-fast
Last refreshed 2026-05-16. Next refresh: weekly.
Rerank v4.0 Fast is worth evaluating for general LLM work when its provider route and context window match the workload.
Decision context: Coding task fit, 1 tracked provider route, and research from 2026-01-01.
Use it for
- Teams evaluating general LLM work
- Workloads that can use a 32k context window
- Buyers comparing 1 tracked provider route
Do not use it for
- Vision or document-understanding workloads
- Strict JSON or tool-calling flows
Cheapest output
-
Microsoft Foundry per 1M tokens
Provider routes
1
Tracked API hosts
Quality / dollar
Unknown
No task benchmark coverage yet
Freshness
2026-01-01
Researched 137d ago
Top use-case fit
No primary decision-task fit is mapped for this model yet.
Provider price ladder
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| Microsoft Foundry | - | - | ServerlessPartial |
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
About
Fast variant reranking model optimized for low latency and high throughput. Multilingual support for reranking English and non-English documents and semi-structured data (JSON). Provides good quality at faster inference speeds than the pro variant.
Rerank v4.0 Fast has a 32K-token context window.
Capabilities
No model capability flags are currently sourced.
