Claude Opus 4.5 vs MiniMax M1

Compare Claude Opus 4.5 by Anthropic against MiniMax M1 by MiniMax, tested across 26 shared challenges. Updated April 2026.

Which is better, Claude Opus 4.5 or MiniMax M1?

Claude Opus 4.5 and MiniMax M1 are both competitive models. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.5 and MiniMax M1

Claude Opus 4.5 is made by anthropic while MiniMax M1 is from minimax.

Our Verdict
Claude Opus 4.5
Claude Opus 4.5
MiniMax M1
MiniMax M1Runner-up

No community votes yet. On paper, Claude Opus 4.5 has the edge — newer, major provider backing.

Too close to call
Writing DNA

Style Comparison

Similarity
100%

Claude Opus 4.5 uses 3.2x more sentence length

Claude Opus 4.5
MiniMax M1
64%Vocabulary53%
55wSentence Length17w
0.86Hedging0.51
5.8Bold7.4
4.5Lists6.2
0.15Emoji0.10
1.59Headings0.86
0.05Transitions0.03
Based on 24 + 14 text responses
vs

Ask them anything yourself

Claude Opus 4.5MiniMax M1

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
FAQ

Common questions