Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Mythos Preview
99
o3-pro
58
Verified leaderboard positions: Claude Mythos Preview #1 · o3-pro unranked
Benchmark data for Claude Mythos Preview and o3-pro is coming soon on BenchLM.
Claude Mythos Preview
o3-pro
$25 / $125
$20 / $80
N/A
27 t/s
N/A
84.93s
1M
200K
Benchmark data for Claude Mythos Preview and o3-pro is coming soon on BenchLM.
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Claude Mythos Preview is priced at $25.00 input / $125.00 output per 1M tokens, versus $20.00 input / $80.00 output per 1M tokens for o3-pro. Claude Mythos Preview has the larger context window at 1M, compared with 200K for o3-pro.
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
Claude Mythos Preview: $25.00 input / $125.00 output per 1M tokens o3-pro: $20.00 input / $80.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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