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Rerank 4.0 Fast

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cohere/rerank-v4.0-fast

33K context · Dec 2025 · 2 upstreams

Cohere's Rerank 4.0 Fast is the low-latency Rerank 4 variant. It scores how relevant each document is to a query across 100+ languages. Use it as a second stage after vector or keyword search when latency matters more than the last bit of quality.

context
33K
input / 1M
$2.00
output / 1M
$0
routes
2
speed, 24h
—

Routes, in fallback orderThe first healthy route answers. Add a key to use a BYOK route.

2
  1. 1CoherePlatform · your credits$2.00 / $0–
  2. 2CohereYour key · not addedBYOK–

Try itOne message, one streamed reply

Open in Playground

Uptime, last 48 hours

OKDegradedDown—

Details

Owner
Cohere
Kind
Rerank
Released
Dec 2025
Context
33K
Data policy
Provider retention
Endpoint
/api/v1/rerank

Quick start

Code

POST /api/v1/rerankSDK docs
import osfrom openai import OpenAI client = OpenAI(    api_key=os.environ["ANYROUTER_API_KEY"],    base_url="https://anyrouter.dev/api/v1",) resp = client.chat.completions.create(    model="cohere/rerank-v4.0-fast",    messages=[{"role": "user", "content": "Say hi in 3 words."}],)print(resp.choices[0].message.content)
More details: pricing table, filters, performance, links

Upstreams and pricing

ProviderAccessStatusProvider details
Credits — billed by AnyRouter
2.000
Your own key (BYOK) — provider bills you, $0 AnyRouter fee
00

Which key answers this model

Your request → your own keys first (none added yet). The provider bills you; AnyRouter adds $0.

If none of your keys can serve it → the shared pool: keys other people donated. You pay the list price from AnyRouter credits, and the donor earns a reward.

Pool for this model: not covered yet.

Share cards
Rerank 4.0 Fast share card
Rerank 4.0 Fast
Cohere upstream share card
Cohere upstream
Cohere upstream share card
Cohere upstream