Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude 3 Opus
34
Claude Mythos Preview
99
Verified leaderboard positions: Claude 3 Opus unranked · Claude Mythos Preview #1
Benchmark data for Claude 3 Opus and Claude Mythos Preview is coming soon on BenchLM.
Claude 3 Opus
Claude Mythos Preview
$15 / $75
$25 / $125
N/A
N/A
N/A
N/A
200K
1M
Benchmark data for Claude 3 Opus and Claude Mythos Preview 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 $15.00 input / $75.00 output per 1M tokens for Claude 3 Opus. Claude Mythos Preview has the larger context window at 1M, compared with 200K for Claude 3 Opus.
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 3 Opus: $15.00 input / $75.00 output per 1M tokens Claude Mythos Preview: $25.00 input / $125.00 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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