Claude 3.7 Thinking Sonnet vs Gemini 2.5 Flash Preview
Compare Claude 3.7 Thinking Sonnet by Anthropic against Gemini 2.5 Flash Preview by Google AI, context windows of 200K vs 1.0M, tested across 27 shared challenges. Updated May 2026.
Which is better, Claude 3.7 Thinking Sonnet or Gemini 2.5 Flash Preview?
Claude 3.7 Thinking Sonnet and Gemini 2.5 Flash Preview are both competitive models. Claude 3.7 Thinking Sonnet costs $6/M input tokens vs $0.15/M for Gemini 2.5 Flash Preview. Context windows: 200K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 3.7 Thinking Sonnet and Gemini 2.5 Flash Preview
Claude 3.7 Thinking Sonnet is made by anthropic while Gemini 2.5 Flash Preview is from google. Claude 3.7 Thinking Sonnet has a 200K token context window compared to Gemini 2.5 Flash Preview's 1049K. On pricing, Claude 3.7 Thinking Sonnet costs $6/M input tokens vs $0.15/M for Gemini 2.5 Flash Preview.
Per 1M tokens
Gemini 2.5 Flash Preview is cheaper on both — 40× input, 50× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Gemini 2.5 Flash Preview is 50x cheaper per token — worth considering if cost matters.
Style Comparison
Claude 3.7 Thinking Sonnet uses 20.4x more headings
