Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Mythos Preview
99
Grok 4.20 Multi-agent
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Verified leaderboard positions: Claude Mythos Preview #1 · Grok 4.20 Multi-agent unranked
Benchmark data for Claude Mythos Preview and Grok 4.20 Multi-agent is coming soon on BenchLM.
Claude Mythos Preview
Grok 4.20 Multi-agent
$25 / $125
$2 / $6
N/A
N/A
N/A
N/A
1M
2M
Benchmark data for Claude Mythos Preview and Grok 4.20 Multi-agent is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for Grok 4.20 Multi-agent 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 $2.00 input / $6.00 output per 1M tokens for Grok 4.20 Multi-agent. Grok 4.20 Multi-agent has the larger context window at 2M, compared with 1M for Claude Mythos Preview.
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 Grok 4.20 Multi-agent: $2.00 input / $6.00 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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