Release4 sources

Anthropic releases Mythos 5.2 and Fable 5.2, saying they are "best for the most ambitious, open-ended technical work", for $8/1M input and $40/1M output tokens (Anthropic)

The Brief · written from 4 sources

Anthropic released Mythos 5.2 and Fable 5.2 models on 2026-11-09
Anthropic prices the models at $8 per 1M input tokens and $40 per 1M output tokens
Anthropic says the models improve coding, reasoning, and vision and generate outputs faster; Vercel AI Gateway lists Claude Fable 5.2

Why it matters

Developers building on Anthropic's API get newer models with stated gains in coding and reasoning, at the announced per-token price, which affects cost planning for token-heavy workloads.

Who’s affected

Developers using Anthropic's Claude API
Teams using Vercel AI Gateway

What to do

Check the announced pricing of $8/1M input and $40/1M output tokens against your current usage costs
Evaluate Claude Fable 5.2 or Mythos 5.2 for ambitious, open-ended technical work

Claude Fable 5.2
Claude Mythos 5.2
#anthropic
#claude
#llm
#ai-models
#pricing
#vercel

Anthropic : Anthropic releases Mythos 5.2 and Fable 5.2, saying they are “best for the most ambitious, open-ended technical work”, for $8/1M input and $40/1M output tokens — We've upgraded Claude Fable and Claude Mythos—models that are designed to tackle…

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