Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Mythos Preview
99
Laguna M.1
46
Verified leaderboard positions: Claude Mythos Preview #1 · Laguna M.1 unranked
Pick Claude Mythos Preview if you want the stronger benchmark profile. Laguna M.1 only becomes the better choice if you want the cheaper token bill.
Agentic
+41.7 difference
Coding
+27.4 difference
Claude Mythos Preview
Laguna M.1
$25 / $125
$0 / $0
N/A
N/A
N/A
N/A
1M
131K
Pick Claude Mythos Preview if you want the stronger benchmark profile. Laguna M.1 only becomes the better choice if you want the cheaper token bill.
Claude Mythos Preview is clearly ahead on the provisional aggregate, 99 to 46. 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 40.7. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 82% to 40.7%.
Claude Mythos Preview is also the more expensive model on tokens at $25.00 input / $125.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Laguna M.1. That is roughly Infinityx on output cost alone. Claude Mythos Preview gives you the larger context window at 1M, compared with 131K for Laguna M.1.
Claude Mythos Preview is ahead on BenchLM's provisional leaderboard, 99 to 46. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 82% and 40.7%.
Claude Mythos Preview has the edge for coding in this comparison, averaging 83.8 versus 56.4. 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 40.7. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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