Anthropic released Opus 5.5, its most capable model tier, which outperforms the larger Fable model on many benchmarks while costing significantly less at $20 per million tokens. The update also improves response formatting and reduces jargon usage, with Sonnet 5.5 and Haiku 5.5 expected in coming weeks.
Background
Anthropic's Claude lineup consists of three tiers: Opus (most capable), Sonnet (mid-tier), and Haiku (fastest/cheapest). Fable and Mythos are Anthropic's top-tier models subject to enhanced safety safeguards.
- Source
- TechCrunch
- Published
- Sep 23, 2026 at 12:30 AM
- Score
- 7.0 / 10