AI Radar

Command A Reasoning

Available · Language, Reasoning

Command A Reasoning is Cohere's first reasoning model, a 111B-parameter text model in the Command A family released on 21 August 2025 on the Cohere platform, with open weights for non-commercial research use. It is a hybrid model whose thinking step can be switched on or off with a user-set token budget, and Cohere aims it at agentic tasks and tool use in 23 languages. [1] [2] [3] Primary source

Timeline of Command A Reasoning →

Claims and evidence

  • Released Primary source[2]page date; Availability [1]entry date
  • Status Available Primary source[4]Command table: command-a-reasoning-08-2025, Status Live [3]
  • Derived from (fine tune) Command ARecorded from the base_model metadata of Cohere's model card, classified as a fine-tune in the Hugging Face model tree; the card text does not describe the lineage. Primary source[3]card metadata base_model CohereLabs/c4ai-command-a-03-2025
  • Change · Reasoning Adds an optional thinking step before the answer that can be switched off, with a token budget to control compute.Compared with Command A Primary source[1]Customization Options [3]Model Summary
  • Change · Other Maximum output rises to 32K tokens, from 8K for Command A.Compared with Command A Primary source[4]Command table
  • Input text Primary source[3]Model Details: Input [4]Command table, Modality
  • Output text Primary source[3]Model Details: Output
  • Feature Reasoning modeHybrid model: thinking can be switched on or off, with a user-set token budget. Primary source[1]Customization Options [3]Model Summary
  • Feature Tool use Primary source[1]Key Features [3]Tool Use Capabilities
  • Feature Multilingual23 languages. Primary source[1]Key Features [3]Model Details: Languages covered
  • Open weights YesResearch release under CC-BY-NC 4.0 with Cohere Labs acceptable use policy; gated download on Hugging Face. Primary source[3]Model Summary [2]Availability
  • Context window 256K tokensMaximum output 32K tokens. The launch post says 128k on a single H100 or A100 and 256k on two or more GPUs. Primary source[4]Command table, Context Length [1]Technical Specifications [3]Model Summary: Context length
  • Parameters 111B Primary source[5]Description [1]opening paragraph [3]Model Summary: Model Size
  • Access API, Open-weights download Primary source[2]Availability

Lineage

Predecessors

No known predecessor.

Successors

No known successor.

Based on

  • Command A · 13 March 2025 · derived (fine tune)

Variants and derived

None recorded.

Siblings

None recorded.

All ancestors

All descendants

None.

Variants

No variants recorded in this record.

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