Claude Opus 4 vs Inception: Mercury
Compare Claude Opus 4 by Anthropic against Inception: Mercury by Inception, in 2 community votes, claude opus 4 and inception: mercury are closely matched, context windows of 200K vs 32K, tested across 53 shared challenges. Updated June 2026.
Which is better, Claude Opus 4 or Inception: Mercury?
Claude Opus 4 and Inception: Mercury are closely matched based on 2 community votes. Claude Opus 4 costs $15/M input tokens vs $10/M for Inception: Mercury. Context windows: 200K vs 32K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4 and Inception: Mercury
Claude Opus 4 is made by anthropic while Inception: Mercury is from inception. Claude Opus 4 has a 200K token context window compared to Inception: Mercury's 32K. On pricing, Claude Opus 4 costs $15/M input tokens vs $10/M for Inception: Mercury. In community voting, In 2 community votes, Claude Opus 4 and Inception: Mercury are closely matched.
In 2 community votes, Claude Opus 4 and Inception: Mercury are closely matched. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Per 1M tokens
Inception: Mercury is cheaper on both — 1.5× input, 7.5× output
Votes are tied. Claude Opus 4 has a 200K context window vs 32K — handles longer documents.
Inception: Mercury is 7.5x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4 uses 8.1x more transitions
