Head to head.
20 matchups.

Anthropic vs OpenAI

Claude Opus 5.5 vs GPT-6 Astra

Anthropic vs OpenAI

Claude Sonnet 5.5 vs GPT-6.1 Sol

Anthropic vs Google Gemini

Claude Sonnet 5.5 vs Gemini 4 Argon

OpenAI vs Google Gemini

GPT-6.1 Sol vs Gemini 4 Argon

Anthropic vs OpenAI

Claude Haiku 5.5 vs GPT-6 Luna

OpenAI vs Google Gemini

GPT-6 Luna vs Gemini 2.5 Flash-Lite

DeepSeek vs OpenAI

DeepSeek Flash (V4.1) vs GPT-6 Luna

DeepSeek vs Anthropic

DeepSeek V4 Pro vs Claude Sonnet 5.5

xAI vs Anthropic

Grok 4.7 vs Claude Sonnet 5.5

xAI vs OpenAI

Grok 4.7 vs GPT-6.1 Sol

xAI vs Google Gemini

Grok 4.7 vs Gemini 4 Argon

Google Gemini vs OpenAI

Gemini 3.8 Flash vs GPT-5.6 Luna

Anthropic vs Google Gemini

Claude Opus 5.5 vs Gemini 4 Argon

Anthropic vs OpenAI

Claude Fable 5.1 vs GPT-6 Astra

DeepSeek vs OpenAI

DeepSeek V4 Pro vs GPT-6.1 Sol

Groq vs DeepSeek

GPT-OSS 120B on Groq vs DeepSeek Flash (V4.1)

Mistral vs OpenAI

Mistral Large vs GPT-6 Luna

Anthropic vs Anthropic

Claude Sonnet 5.5 vs Claude Opus 5.5

OpenAI vs OpenAI

GPT-6.1 Sol vs GPT-5.6 Sol

Google Gemini vs Anthropic

Gemini 3.8 Flash vs Claude Haiku 5.5