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Compare AI models side by side

Choose up to 4 models. Prices, context windows and declared capabilities are read live from the OpenRouter listing, so the table reflects what the providers publish today.

CohereCommand AOpenAIGPT-5.6 Terra Pro
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Side-by-side comparison of Cohere: Command A, OpenAI: GPT-5.6 Terra Pro
Attribute
CohereCommand Acohere/command-a
OpenAIGPT-5.6 Terra Proopenai/gpt-5.6-terra-pro
Input priceUSD per 1M tokens$2.50$2.00 (best)
Output priceUSD per 1M tokens$10.00 (best)$12.00
Blended price75% in / 25% out$4.38 (best)$4.50
Vs. market median5.5× dearer5.6× dearer
Value rankcheapest = 1#347 (best)#353
Context windowtokens256K1.1M (best)
Max outputtokens8K128K (best)
Input modalitiestextfile, image, text
Output modalitiestexttext
Tool callingNot declaredDeclared
ReasoningNot declaredDeclared
Structured outputDeclaredDeclared
Listed on OpenRouter2025-03-132026-07-09 (best)

Source: OpenRouter (live)

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Read-out

What the numbers say

  • Cohere: Command A is the cheapest here at $4.38/M blended — 1.0× less than OpenAI: GPT-5.6 Terra Pro.
  • OpenAI: GPT-5.6 Terra Pro offers the largest context window (1.1M tokens) versus 256K for Cohere: Command A.
  • Tool calling is declared for OpenAI: GPT-5.6 Terra Pro only.
  • Reasoning mode is declared for OpenAI: GPT-5.6 Terra Pro only.

Generated from the live figures above. Capabilities are what each provider declares on its listing.

Curated

Head-to-heads we keep up to date

Each comparison resolves to the newest models in the named families and carries our own guidance on which to choose.

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