Anthropic Says Claude Fable 5.2 Tops Unreleased Gemini 4 Carbon, Costs 20% Less
Summary
Anthropic releases Claude Fable 5.2 and Mythos 5.2, saying the models are 20% cheaper and up to 30% faster than 5.1. Fable debuts at No. 1 on Artificial Analysis' Intelligence Index, five points ahead of Google's unreleased Gemini 4 Carbon. Anthropic charges $8 per million input tokens and $40 per million output tokens.
Key Points
- Anthropic restricts Mythos 5.2 to vetted security and life sciences groups.
- Executive Dianne Penn says of the slowdown, "We called for pacing, not pausing."
- Teams of 1,000 Fable agents build an operating system in eight days.