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Language model

Command A Reasoning

Cohere

Released
August 21, 2025
Data date
September 26, 2026
Input
Text
Output
Text

Command A Reasoning is Cohere's first Command checkpoint explicitly released as a reasoning model. It can think before answering or respond directly. Its 111 billion parameters, 256,000-token context, and 23 languages belong to a separate model identity alongside Command A.

Cohere lists it as live and releases the weights openly. The 32,000-token output cap includes visible reasoning content. Tool workflows therefore have to fit that reasoning trace and their tool-call history into the available context.

Specifications and access

SpecificationValue and source
Weights
Open weightsSource
Access
Parameters
111 billionSource
Context window
256,000 tokensSource
Maximum output
32,000 tokensSource
Knowledge Cutoff
June 2024Source
License
CC BY-NC-4.0Source
Inputs
TextSource
Outputs
TextSource
Reasoning
Tool calling