Introducing Claude Opus 5
Anthropic News ● Covered by 7 sources
Anthropic released Claude Opus 5, a model that matches the intelligence of its more expensive Fable 5 counterpart while costing half as much. Opus 5 achieves state-of-the-art performance on Frontier-Bench and GDPval-AA benchmarks, and on ARC-AGI 3 scores three times higher than the next-best model. The model becomes Anthropic's default offering on Claude Max and Claude Pro, expanding access to high-capability AI for coding, research, and business automation tasks.
Why it matters
Opus 5 is a step change improvement for the Opus tier powering long-running agents while delivering improvements in coding and professional work.
Also covered by
- The New Stack — Anthropic’s Opus 5 is almost Fable 5
- TechCrunch AI — Anthropic launches Opus 5
- Sakana AI — Announcing Fugu-Ultra v1.1 and Claude Code interface for Fugu
- The Verge — Anthropic releases Opus 5 with ‘close’ to Fable 5’s capabilities
- The Batch — Testing Mythos and Fable, Moving Beyond SWE-bench, Nvidia's Open Contender
- The Batch — Mythos Begets Fable, Cursor's Composer 2.5, Agents Building Agents
