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SelectedOpenAI logoGPT-5.5×Anthropic logoClaude 4.7 Opus×xAI logoGrok 4×Mistral logoMistral Large 2×Clear all
 
OpenAI logoGPT-5.5

OpenAI

Anthropic logoClaude 4.7 Opus

Anthropic

xAI logoGrok 4

xAI

Mistral logoMistral Large 2

Mistral

VendorOpenAIAnthropicxAIMistral
FamilyGPTClaudeGrokMistral
Release date2026-04-232026-04-162025-07-092024-07-24
Context window400,000 tokens1,000,000 tokens256,000 tokens128,000 tokens
Parameters123B
Modalitytext, vision, audiotext, visiontexttext
LicenseproprietaryproprietaryproprietaryMistral Research License
Sourceproprietaryproprietaryproprietaryopen weights
DescriptionOpenAI'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.Anthropic's most capable model, optimized for complex reasoning and coding. Improved software engineering, long-running coding tasks, and higher-resolution vision over Claude 4.6.
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