Rerank 4 Fast is Cohere's reranking model with a 33K context window, available from 2 providers, starting at $2.00 / 1M input. Cohere's fourth-generation fast reranking model optimized for low-latency document sorting by semantic similarity to a query.
Specifications
Canonical IDcohere-rerank-4-fast
TypeReranking
StatusActive
CreatorCohereCohere
Providers
Context Window33K tokens
Input ModalitiesText
Release Date · 6 months ago

Capabilities

Input1/5
Text
Image·
Audio·
Video·
PDF·
Output0/5
Text·
Image·
Audio·
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandardBatch
Input
$ / 1M
Query
$ / query
Input
$ / 1M
Azure AI Foundry logo
Azure AI Foundry
cohere:rerankv4fast
N/A$0.0020
Cohere logo
Cohere
rerank-v4.0-fast
$2.00N/A$1.00

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Rerank 4 Fast33K$2.00Current
Rerank 4 Pro33K$2.50Available
Rerank 3.54KAvailable
Voyage Rerank 3.532KAvailable
NV RerankQA Mistral 3 4BAvailable
Rerank 3 English4KAvailable
Rerank 3 Multilingual4KAvailable
Voyage Rerank 2.532K$0.050Available
Voyage Rerank 2.5 Lite32K$0.020Available
BGE Reranker M3 28K$0.010$0.010Available
Jina Reranker 2 Base Multilingual1K$0.018$0.018Available

Model IDs

azure_ai/cohere-rerank-v4.0-fast
cohere-rerank-4-fast
cohere-rerank-v4-0-fast
cohere/rerank-v4-fast
rerank-v4.0-fast