anthropic/claude-opus-4.6Claude Opus 4.6 is Anthropic’s proprietary AI model, released Feb 5, 2026. It costs $5/M input and $25/M output tokens, and handles a 1M-token context window. Its strongest use case is coding, where it ranks in the 88th percentile of the models Model Beat tracks.
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks.
Scores on standardized evaluations. Higher is better — and rank shows where Claude Opus 4.6 lands among all models tracked on Model Beat.
Abstract visual reasoning
Harder abstract reasoning
Graduate-level scientific reasoning
Frontier of human expert knowledge
Common-sense trick questions
Factual accuracy & hallucination
Novel ML problem-solving
Code performance optimization
Scientific research coding
Real GitHub issue resolution
Human-rated web development
Olympiad-qualifier math
Research-level math problems
Hardest research math
Multi-step agentic tasks
Autonomous task length
Command-line agentic tasks
Tool-agent-user reliability
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks.
Claude Opus 4.6 is an AI model developed by Anthropic, part of the Claude family, released Feb 5, 2026.
Claude Opus 4.6's list price from Anthropic is $5 per million input tokens and $25 per million output tokens.
Claude Opus 4.6 supports a context window of up to 1M tokens.
On standardized evaluations tracked by Epoch AI, Claude Opus 4.6 scores 1556 on WebDev Arena, 12.0 h on METR task horizon, 79.8% on Terminal-Bench.
Claude Opus 4.6 is a proprietary model (API access), available through its provider's API rather than as a downloadable open-weight model.
Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Jul 30, 2026.