Release4 sources

Anthropic launches new Claude Fable and Mythos 5.2 models

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 is announcing two new models today: Claude Fable 5.2 and Claude Mythos 5.2, which it says are designed to take on "daunting" technical challenges. The company claims the new models show improvements in coding, reasoning, and vision, and can generate outputs faster than…

Read the full story at theverge.com ↗