Claude Fable 5.2 is live on Runware

Runware added Anthropic's Claude Fable 5.2 on its OpenAI-compatible and Anthropic Messages endpoints. The model ID is anthropic:claude@fable-5.2, and if you already call Fable 5.1 on Runware you only need to change the ID.

It has a 1M-token context and up to 128K output tokens, takes text and image input, and supports tool calling and configurable effort. Pricing is $8 per million input tokens and $40 per million output tokens, with cached input at $0.20 and cache writes at $10.

Anthropic reports 49.1% on FrontierCode 2.0 at Xhigh effort, up from 32.4% on Fable 5.1, and output up to 30% faster than Fable 5.1.