Compare MiniMax M2 by MiniMax against Claude Opus 4 by Anthropic, context windows of 205K vs 200K, tested across 34 shared challenges. Updated April 2026.
MiniMax M2 and Claude Opus 4 are both competitive models. MiniMax M2 costs $0/M input tokens vs $15/M for Claude Opus 4. Context windows: 205K vs 200K tokens. Compare their real outputs side by side below.
MiniMax M2 is made by minimax while Claude Opus 4 is from anthropic. MiniMax M2 has a 205K token context window compared to Claude Opus 4's 200K. On pricing, MiniMax M2 costs $0/M input tokens vs $15/M for Claude Opus 4.
No community votes yet. On paper, Claude Opus 4 has the edge — bigger model tier, major provider backing.
Claude Opus 4 uses 4.3x more sentence length
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare MiniMax M2 by MiniMax against Claude Opus 4 by Anthropic, context windows of 205K vs 200K, tested across 34 shared challenges. Updated April 2026.
MiniMax M2 and Claude Opus 4 are both competitive models. MiniMax M2 costs $0/M input tokens vs $15/M for Claude Opus 4. Context windows: 205K vs 200K tokens. Compare their real outputs side by side below.
MiniMax M2 is made by minimax while Claude Opus 4 is from anthropic. MiniMax M2 has a 205K token context window compared to Claude Opus 4's 200K. On pricing, MiniMax M2 costs $0/M input tokens vs $15/M for Claude Opus 4.
No community votes yet. On paper, Claude Opus 4 has the edge — bigger model tier, major provider backing.
Claude Opus 4 uses 4.3x more sentence length
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

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34 fights queued
22+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy