Cohere Embed 5 Fast
Embedding model
embed-v5.0-fast
$0.08 in per 1M tokens
Cohere Rerank 4 (Pro / Fast)
Second-stage reranking for RAG and enterprise search.
Model idrerank-v4.0-pro
PricePrice not published
Checked29 September 2026
Where it stands
4newer embedding models since its release
- EmbeddingGemma 26 Oct 2026
- Cohere Embed 5 Fast30 Sep 2026
- Cohere Embed 5 Pro30 Sep 2026
- Gemini Embedding 222 Apr 2026
- Before it from Cohere
- Cohere Embed v4Apr 2025
- After it from Cohere
- Cohere Embed 5 Pro30 Sep 2026
- Weights
- Closed weights; access is hosted only.
How to call it
3 ways to use Cohere Rerank 4 (Pro / Fast), with the model id each provider expects.
| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| Cohere API | rerank-v4.0-pro |
https://api.cohere.com/v2/rerank |
docs.cohere.com |
| Cohere API (fast) | rerank-v4.0-fast |
https://api.cohere.com/v2/rerank |
|
| OpenRouter | cohere/rerank-4-pro |
openrouter.ai |
Pricing
Price not published.
No price source linked. Checked 29 September 2026.
Specs
- Input
- Text
- Output
- Text
- Context window
- 32,000 tokens
- Max output
- Not published
- Open weights
- No
- Licence
- Proprietary
- Released
- 11 December 2025
- Status
- Current
- Type
- Embedding model
What stands out
What its maker marketed at launch, and what people found later, each with its source.
32K-context reranking
Rerank window grew from 4K (v3.5) to 32K tokens, so whole long documents can be scored.
Pro / Fast tiers
Two variants: pro for best accuracy, fast for latency-sensitive search.
Notes
Reranker (scores query-document relevance). Previous: rerank-v3.5 (Bedrock cohere.rerank-v3-5:0).
curl https://api.cohere.com/v2/rerank -H "Authorization: Bearer $CO_API_KEY" -H "Content-Type: application/json" \
-d '{"model":"rerank-v4.0-pro","query":"capital of France","documents":["Paris is the capital of France.","Berlin is in Germany."]}'
Sources: https://docs.cohere.com/docs/models
Not yet checked against an official source: Release date from third-party listing; pricing not verified (OpenRouter ~$0.0025/search reported, not checked).