Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Mythos Preview
99
Command A+
32
Verified leaderboard positions: Claude Mythos Preview #1 · Command A+ unranked
Pick Claude Mythos Preview if you want the stronger benchmark profile. Command A+ only becomes the better choice if you want the cheaper token bill.
Multimodal
+32.6 difference
Claude Mythos Preview
Command A+
$25 / $125
$2.5 / $10
N/A
272 t/s
N/A
0.25s
1M
128K
Pick Claude Mythos Preview if you want the stronger benchmark profile. Command A+ only becomes the better choice if you want the cheaper token bill.
Claude Mythos Preview is clearly ahead on the provisional aggregate, 99 to 32. 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 59.8. The single biggest benchmark swing on the page is CharXiv, 93.2% to 52.7%.
Claude Mythos Preview is also the more expensive model on tokens at $25.00 input / $125.00 output per 1M tokens, versus $2.50 input / $10.00 output per 1M tokens for Command A+. That is roughly 12.5x on output cost alone. Claude Mythos Preview gives you the larger context window at 1M, compared with 128K for Command A+.
Claude Mythos Preview is ahead on BenchLM's provisional leaderboard, 99 to 32. The biggest single separator in this matchup is CharXiv, where the scores are 93.2% and 52.7%.
Claude Mythos Preview has the edge for multimodal and grounded tasks in this comparison, averaging 92.4 versus 59.8. Inside this category, CharXiv is the benchmark that creates the most daylight between them.
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