Claude 3 Opus vs Inception: Mercury

Compare Claude 3 Opus by Anthropic against Inception: Mercury by Inception, context windows of 200K vs 32K, tested across 12 shared challenges. Updated April 2026.

Which is better, Claude 3 Opus or Inception: Mercury?

Claude 3 Opus and Inception: Mercury are both competitive models. Claude 3 Opus 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 3 Opus and Inception: Mercury

Claude 3 Opus is made by anthropic while Inception: Mercury is from inception. Claude 3 Opus has a 200K token context window compared to Inception: Mercury's 32K. On pricing, Claude 3 Opus costs $15/M input tokens vs $10/M for Inception: Mercury.

Our Verdict
Claude 3 Opus
Claude 3 Opus
Inception: Mercury
Inception: MercuryRunner-up

No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, bigger context window, major provider backing.

Inception: Mercury is 7.5x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
84%

Inception: Mercury uses 489.0x more bold

Claude 3 Opus
Inception: Mercury
54%Vocabulary55%
14wSentence Length40w
0.48Hedging0.39
0.0Bold4.9
3.0Lists3.8
0.00Emoji0.04
0.00Headings1.04
0.06Transitions0.03
Based on 3 + 17 text responses
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Claude 3 OpusInception: Mercury

279 AI models invented the same fake scientist.

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