Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Mythos Preview
99
GPT-4o
--
Verified leaderboard positions: Claude Mythos Preview #1 · GPT-4o unranked
Benchmark data for Claude Mythos Preview and GPT-4o is coming soon on BenchLM.
Claude Mythos Preview
GPT-4o
$25 / $125
$2.5 / $10
N/A
131 t/s
N/A
0.81s
1M
128K
Benchmark data for Claude Mythos Preview and GPT-4o is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for GPT-4o yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
Claude Mythos Preview is priced at $25.00 input / $125.00 output per 1M tokens, versus $2.50 input / $10.00 output per 1M tokens for GPT-4o. Claude Mythos Preview has the larger context window at 1M, compared with 128K for GPT-4o.
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 GPT-4o: $2.50 input / $10.00 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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