Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Mythos Preview
99
MAI-Thinking-1
65
Verified leaderboard positions: Claude Mythos Preview #1 · MAI-Thinking-1 #23
Pick Claude Mythos Preview if you want the stronger benchmark profile. MAI-Thinking-1 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Agentic
+36.4 difference
Coding
+12.8 difference
Knowledge
+5.0 difference
Claude Mythos Preview
MAI-Thinking-1
$25 / $125
N/A
N/A
N/A
N/A
N/A
1M
256K
Pick Claude Mythos Preview if you want the stronger benchmark profile. MAI-Thinking-1 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Claude Mythos Preview is clearly ahead on the provisional aggregate, 99 to 65. 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 agentic, where it averages 82.4 against 46. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 82% to 46%.
Claude Mythos Preview gives you the larger context window at 1M, compared with 256K for MAI-Thinking-1.
Claude Mythos Preview is ahead on BenchLM's provisional leaderboard, 99 to 65. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 82% and 46%.
Claude Mythos Preview has the edge for knowledge tasks in this comparison, averaging 74.9 versus 69.9. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Claude Mythos Preview has the edge for coding in this comparison, averaging 83.8 versus 71. 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 46. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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