Report: Anthropic Withholds Its Strongest Model Mythos 2

SemiAnalysis analyst Dylan Patel reports Anthropic will not release its strongest trained model Mythos 2, keeping it internal for scientific problems, while OpenAI has confirmed it will release its competing Astra model.

2026-08-16 ~ 2026-08-18 · 2 related posts

• Anthropic closes Mythos vs OpenAI democratizes with Astra — bindureddy · 2026-08-16
• Anthropic reportedly won't release Mythos 2, allegedly held back by US government — ccerrato147 · 2026-08-18