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SelectedAnthropic logoClaude 4.6 Sonnet×OpenAI logoo3×OpenAI logoGPT-5.5×Mistral logoMistral Large 2×Clear all
 
Anthropic logoClaude 4.6 Sonnet

Anthropic

OpenAI logoo3

OpenAI

OpenAI logoGPT-5.5

OpenAI

Mistral logoMistral Large 2

Mistral

VendorAnthropicOpenAIOpenAIMistral
FamilyClaudeo-seriesGPTMistral
Release date2025-04-162026-04-232024-07-24
Context window200,000 tokens200,000 tokens400,000 tokens128,000 tokens
Parameters123B
Modalitytext, visiontext, visiontext, vision, audiotext
LicenseproprietaryproprietaryproprietaryMistral Research License
Sourceproprietaryproprietaryproprietaryopen weights
DescriptionReasoning-focused model in the o-series.OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning.
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