Release4 sources

Anthropic Unveils New Fable, Mythos AI Models Ahead of IPO

Bloomberg Technology · By Rachel Metz · 1h ago

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 PBC has unveiled new versions of its powerful Mythos and Fable artificial intelligence models, an effort to bolster the company’s position as a leader in AI development on the eve of its long-awaited Wall Street debut.

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