Anthropic has released Claude Fable 5, a new AI model with performance matching Claude Mythos 5 but with stricter safety guardrails. The model features a 1 million token context window and is priced at twice the rate of Claude Opus 4.x models. Early testing suggests it's powerful but slow and expensive, with frequent safety triggers that can automatically switch to alternative models.
Background
Anthropic is a leading AI research company known for developing large language models with strong safety features. Their Claude series has been competing with models from OpenAI and other AI labs.
- Source
- Simon Willison
- Published
- Jun 10, 2026 at 07:59 AM
- Score
- 7.0 / 10