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SelectedOpenAI logoo3×Mistral logoMistral Large 2×xAI logoGrok 4×OpenAI logoGPT-5×Clear all
 
OpenAI logoo3

OpenAI

Mistral logoMistral Large 2

Mistral

xAI logoGrok 4

xAI

OpenAI logoGPT-5

OpenAI

VendorOpenAIMistralxAIOpenAI
Familyo-seriesMistralGrokGPT
Release date2025-04-162024-07-242025-07-092025-08-07
Context window200,000 tokens128,000 tokens256,000 tokens400,000 tokens
Parameters123B
Modalitytext, visiontexttexttext, vision, audio
LicenseproprietaryMistral Research Licenseproprietaryproprietary
Sourceproprietaryopen weightsproprietaryproprietary
DescriptionReasoning-focused model in the o-series.OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026.
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