~ / stacks / claude-code-opus-mythos

Claude Code + Opus Mythos

A CLI agent plus hosted coding model stack for deep terminal workflows and complex multi-step refactors.

Unknown series: 50% hype haircut: no reliable public community test data yet. Raw proxy claim was ARscore 40.4 and model SWE 93.9%. AgentRanks displays the 50% haircut score until reproducible community tests exist.
AgentClaude Code
ModelOpus Mythos 50% hype haircut
Agent score86
Model SWE-bench47%
Combined score40.4
Best fitdeep terminal workflows and complex multi-step refactors

Related Claude Code stacks

Same agent, different model choices.

Claude Code + Opus 4.8

ARscore 76.2, 1M context, $5/$25

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Claude Code + Opus 4.7

ARscore 75.3, 1M context, $5/$30

view stack

Claude Code + Sonnet 4.6

ARscore 68.5, 1M context, $2/$8

view stack

Related Opus Mythos stacks

Same model, different agent wrappers.