Anthropic Claude Opus 5 Officially Released: Matches Fable 5 Performance at Same Price, ARC-AGI-3 Score Triples, 85% Fewer Refusals
Anthropic released Claude Opus 5 on July 24, 2026, positioned as a 'near-frontier' flagship model delivering Fable 5-competitive performance at the same pricing as Opus 4.8 ($5/$25 per million tokens). Opus 5 triples the next-best model's ARC-AGI-3 score, reduces refusals by 85%, and supports a 1-million-token context window, becoming the default model for Claude Max and Claude Pro users.