Anthropic’s Opus 5 is almost Fable 5
The New Stack Frederic Lardinois ● Covered by 7 sources
Anthropic released Opus 5, a model that matches Fable 5's performance on many benchmarks while costing half as much, with pricing unchanged at $5/$25 per million tokens. On knowledge work benchmarks like GDPval-AA v2, Opus 5 scores 1861 compared to Fable 5's 1747, and it achieves double the pass rate of competing models on AutomationBench business workflow tasks. Opus 5 becomes the default model for Claude Max subscribers and shifts Fable 5's position as the company's tier for only the most demanding long-running autonomous projects.
Why it matters
Anthropic launched Opus 5 on Friday, the latest version of what used to be the company’s flagship model (before the The post Anthropic’s Opus 5 is almost Fable 5 appeared first on The New Stack.
Also covered by
- Anthropic News — Introducing Claude Opus 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
