Claude 3.7 Sonnet vs Gemini 3 Flash Preview
Compare Claude 3.7 Sonnet by Anthropic against Gemini 3 Flash Preview by Google AI, context windows of 200K vs 1.0M, tested across 55 shared challenges. Updated June 2026.
Which is better, Claude 3.7 Sonnet or Gemini 3 Flash Preview?
Claude 3.7 Sonnet and Gemini 3 Flash Preview are both competitive models. Claude 3.7 Sonnet costs $3/M input tokens vs $0.5/M for Gemini 3 Flash Preview. Context windows: 200K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 3.7 Sonnet and Gemini 3 Flash Preview
Claude 3.7 Sonnet is made by anthropic while Gemini 3 Flash Preview is from google. Claude 3.7 Sonnet has a 200K token context window compared to Gemini 3 Flash Preview's 1049K. On pricing, Claude 3.7 Sonnet costs $3/M input tokens vs $0.5/M for Gemini 3 Flash Preview.
No community votes yet. On paper, Gemini 3 Flash Preview has the edge — newer, bigger context window.
Gemini 3 Flash Preview is 5.0x cheaper per token — worth considering if cost matters.
Cost per 1M tokens
Gemini 3 Flash Preview is cheaper on both — 6.0× input, 5.0× output
Style Comparison
Gemini 3 Flash Preview uses 5.9x more bold
