Claude Opus 4.1 vs Inception: Mercury 2
Compare Claude Opus 4.1 by Anthropic against Inception: Mercury 2 by Inception, context windows of 200K vs 128K, tested across 53 shared challenges. Updated April 2026.
Which is better, Claude Opus 4.1 or Inception: Mercury 2?
Claude Opus 4.1 and Inception: Mercury 2 are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $0.25/M for Inception: Mercury 2. Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and Inception: Mercury 2
Claude Opus 4.1 is made by anthropic while Inception: Mercury 2 is from inception. Claude Opus 4.1 has a 200K token context window compared to Inception: Mercury 2's 128K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $0.25/M for Inception: Mercury 2.
Per 1M tokens
Inception: Mercury 2 is cheaper on both — 60× input, 100× output
No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, bigger context window, major provider backing.
Inception: Mercury 2 is 100x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4.1 uses 4.7x more emoji
