Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Mythos Preview
99
MiniMax M3
76
Verified leaderboard positions: Claude Mythos Preview #1 · MiniMax M3 #12
Pick Claude Mythos Preview if you want the stronger benchmark profile. MiniMax M3 only becomes the better choice if you want the cheaper token bill or you would rather avoid the extra latency and token burn of a reasoning model.
Agentic
+10.5 difference
Coding
+16.8 difference
Multimodal
+27.5 difference
Claude Mythos Preview
MiniMax M3
$25 / $125
$0.3 / $1.2
N/A
N/A
N/A
N/A
1M
1M
Pick Claude Mythos Preview if you want the stronger benchmark profile. MiniMax M3 only becomes the better choice if you want the cheaper token bill or you would rather avoid the extra latency and token burn of a reasoning model.
Claude Mythos Preview is clearly ahead on the provisional aggregate, 99 to 76. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Mythos Preview's sharpest advantage is in multimodal & grounded, where it averages 92.4 against 64.9. The single biggest benchmark swing on the page is SWE-bench Pro, 77.8% to 59%.
Claude Mythos Preview is also the more expensive model on tokens at $25.00 input / $125.00 output per 1M tokens, versus $0.30 input / $1.20 output per 1M tokens for MiniMax M3. That is roughly 104.2x on output cost alone. Claude Mythos Preview is the reasoning model in the pair, while MiniMax M3 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use.
Claude Mythos Preview is ahead on BenchLM's provisional leaderboard, 99 to 76. The biggest single separator in this matchup is SWE-bench Pro, where the scores are 77.8% and 59%.
Claude Mythos Preview has the edge for coding in this comparison, averaging 83.8 versus 67. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
Claude Mythos Preview has the edge for agentic tasks in this comparison, averaging 82.4 versus 71.9. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Claude Mythos Preview has the edge for multimodal and grounded tasks in this comparison, averaging 92.4 versus 64.9. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
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