Anthropic's Claude Fable 5.2 beats GPT-6 Astra in coding, can even build an operating system

Anthropic’s latest release, Claude Fable 5.2, outperforms OpenAI’s GPT‑6 Astra on coding benchmarks, even demonstrating the ability to construct a functional operating system. The model also introduces a 20 % price reduction, charging $8 per million input tokens and $40 per million output tokens, making long coding sessions notably cheaper than GPT‑6 Astra. These advances reinforce Anthropic’s lead among frontier AI models.