rerank-v4.0-fast
Coheredocs.cohere.com/docs/models
A light version of rerank-v4.0-pro, this is a multilingual model that allows for re-ranking English and non-english documents and semi-structured data (JSON). This model is better suited for low latency and high throughput use-cases than its pro variant.
Updated 2 h ago · first seen 11 Sept 2026
model_01M294H98R6Y3741NXG3SKJ9NH
- Context
- 32K tokens
- T1 · 2 h ago
Specification
- Family
- Rerank
Source:Cohere — docs & blogT1observed 2 h agohigh
- Context window
- 32K tokens
Source:Cohere — docs & blogT1observed 2 h agohigh
- Modalities
- text
Source:Cohere — docs & blogT1observed 2 h agohigh
- Input modalities
- text
Source:Cohere — docs & blogT1observed 2 h agohigh
- API model id
- rerank-v4.0-fast
Source:Cohere — docs & blogT1observed 2 h agohigh
- Official page
Source:Cohere — docs & blogT1observed 2 h agohigh
- Endpoints
- Rerank
Source:Cohere — docs & blogT1observed 2 h agohigh
- Foundry model id
- cohere-rerank-v4-fast
Source:Cohere — docs & blogT1observed 2 h agohigh
Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →
Provenance
Attributed facts
10
Source tiers
T110
Freshest observation
2 h ago
Conflicts
None
Modalities
- Modalities
- text
- Input
- text
Capabilities
Tool calling
Unavailable
Structured output
Unavailable
Reasoning
Unavailable
Vision
No
Cohere — docs & blog · T1
Audio
Unavailable
Fine-tuning available
Unavailable
- Context window
- 32K tokens
Source:Cohere — docs & blogT1observed 2 h agohigh
No benchmark results recorded
Current prices
No current prices recorded
Available through 1
Price history
No hardware estimate available
No lineage recorded
Papers 0
No papers linked yet.
Repositories 0
No repositories linked yet.
As of
Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.
Claim history
Familyfamily1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| Rerank | → current | current | Cohere — docs & blogT1 | high | deterministic |
Context windowcontext_length1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| 32K tokens | → current | current | Cohere — docs & blogT1 | high | deterministic |
Modalitiesmodalities1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| text | → current | current | Cohere — docs & blogT1 | high | deterministic |
Input modalitiesmodalities_input1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| text | → current | current | Cohere — docs & blogT1 | high | deterministic |
API model idapi_model_id1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| rerank-v4.0-fast | → current | current | Cohere — docs & blogT1 | high | deterministic |
Official pageofficial_url1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| https://docs.cohere.com/docs/models | → current | current | Cohere — docs & blogT1 | high | deterministic |
Descriptiondescription1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| A light version of rerank-v4.0-pro, this is a multilingual model that allows for re-ranking English and non-english documents and semi-structured data (JSON). This model is better suited for low latency and high throughput use-cases than its pro variant. | → current | current | Cohere — docs & blogT1 | high | deterministic |
Endpointsendpoints1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| Rerank | → current | current | Cohere — docs & blogT1 | high | deterministic |
Foundry model idfoundry_model_id1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| cohere-rerank-v4-fast | → current | current | Cohere — docs & blogT1 | high | deterministic |
Visionvision1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| No | → current | current | Cohere — docs & blogT1 | high | deterministic |
Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →
| Source | Document | Type | Tier | Last observed | Snapshots |
|---|---|---|---|---|---|
| Cohere — docs & blog | docs.cohere.com/docs/models.md | model_docs | T1· Official | 2 h ago | 1 |
Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.