Pyyan / Compare / Mistral Large 4 vs GPT-6 Astra

Mistral Large 4 vs GPT-6 Astra

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Language Models · verified 10 Oct 2026

Mistral Large 4Mistralpreview
GPT-6 AstraOpenAIcurrent
3 slots left
SpecificationMistral Large 4GPT-6 Astra
SummaryA trillion parameters in preview, with the weights promised but not shipped.Saturates three of the benchmarks it reports, and ships disabled for enterprise.
Context1M1.05M
Input ($/Mtok)$1.36$10
Output ($/Mtok)Not published$50
LicenceNot publishedProprietary
Max outputNot published128K
Parameters1.05T total, 49B or 52B activeNot published
Released6 Oct 20263 Sep 2026
Model IDmistral-large-4gpt-6-astra
CategoryLanguage ModelsLanguage Models
OfficialMistral ↗—

Highlighted rows are where these differ.

Mistral Large 4

  • Preview API only: weights are promised by the end of October and the licence is unpublished
  • Sources disagree on active parameters, 49B in early coverage and 52B in the documentation
  • 1M token context, with a 1.6B parameter vision encoder

Best for trying a European frontier model.

Full spec sheet →

GPT-6 Astra

  • 97.6% on FrontierMath Tier 4, 99.9% on ARC-AGI-3 and 100% on ExploitBench
  • Above 272K input tokens the whole request reprices: input and cache at 2x, output at 1.5x
  • Rolls out to OpenAI's Daybreak cyber programme first, and arrives switched off for enterprise

Best for hard reasoning and computer use.

Full spec sheet →