Anthropic Mythos stays private, markets price odds

The interesting part is not whether Mythos is better than public Claude models; it’s that the market has cleanly separated capability from access. That makes this less a model story than a distribution story, and Anthropic seems to be choosing security and controlled access over benchmark theater.

• –Prediction markets briefly priced a competitive Anthropic response after GPT-5.5, then faded back when no shipment came
• –The sustained 20%+ release odds look like a secrecy premium, not hard evidence Anthropic will reverse course
• –Project Glasswing effectively turns Mythos into a private security instrument, not a general-purpose product launch
• –The real trade is public Claude dominance versus hidden Mythos capability: you can be bullish on Anthropic and bearish on Mythos release at the same time
• –For developers, this reinforces a bigger trend: the most capable models may increasingly be the least accessible ones