https://fortune.com/2026/06/09/anthropic-releases-its-first-mythos-model-to-the-public/
Market Snapshot
The market for “GPT-5.6 released by June 30, 2026?” remains highly confident, with a 92.5% YES pricing. Meanwhile, “Will OpenAI IPO by December 31, 2026?” shows a 46.5% YES pricing, consistent with supportive expectations of an IPO by this date. The “Claude Mythos model debut” market reflects a 64% YES expectation for a high debut score.
Key Takeaways
Anthropic’s release of the Mythos-class model appears consistent with increased likelihood for its debut on the Arena Leaderboard with a high score.












