Anthropic

Claude Opus 5.5

Developer

Anthropic

Provider / harness

Anthropic · Claude Code CLI 2.1.280; Anthropic Claude Code · Claude CLI 2.1.280, claude -p --model claude-opus-5-5 --effort max --dangerously-skip-permissions --output-format json; 3-at-a-time scheduler; ran to its own end_turn; Anthropic Claude Code CLI · Claude Code CLI 2.1.280; Anthropic Claude Max subscription · Claude CLI; Anthropic Claude Max subscription · Claude CLI 2.1.280; Anthropic first-party Max subscription · Claude Code 2.1.280; first-party Claude Code subscription CLI; Provider not separately recorded · first-party Claude Code CLI

Effort

High, Max, Unreported

Weights

Not recorded

First seen

23 Sep 2026

Campaigns

None recorded