Claude 3.7 Sonnet vs Claude 3 Opus

Compare Claude 3.7 Sonnet and Claude 3 Opus, both from Anthropic, context windows of 200K vs 200K, tested across 11 shared challenges. Updated March 2026.

Which is better, Claude 3.7 Sonnet or Claude 3 Opus?

Claude 3.7 Sonnet and Claude 3 Opus are both competitive models. Claude 3.7 Sonnet costs $3/M input tokens vs $15/M for Claude 3 Opus. Context windows: 200K vs 200K tokens. Compare their real outputs side by side below.

Key Differences Between Claude 3.7 Sonnet and Claude 3 Opus

Claude 3.7 Sonnet is made by anthropic while Claude 3 Opus is from anthropic. Claude 3.7 Sonnet has a 200K token context window compared to Claude 3 Opus's 200K. On pricing, Claude 3.7 Sonnet costs $3/M input tokens vs $15/M for Claude 3 Opus.

Our Verdict
Claude 3.7 Sonnet
Claude 3.7 Sonnet
Claude 3 Opus
Claude 3 Opus

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Claude 3.7 Sonnet is 5.0x cheaper per token — worth considering if cost matters.

Too close to call
FAQ

This comparison gets 800+ views/month. Your brand could be here.

Advertise