
GPT 5.6 is imminent. Polymarket has it near 93% by June 30. And I'll say it plainly: I think it beats Claude Opus 4.8. OpenAI is shipping base models every 6 weeks now and Codex has been eating Claude Code's lunch on installs. But here's what most people are missing. If GPT 5.6 is just another small step up, it doesn't matter. Because Claude Mythos is coming in the same window, and Mythos is a new class entirely, not a point release. GPT 5.6 will beat 4.8. Mythos will beat GPT 5.6. If OpenAI plays it safe with another incremental drop, Anthropic takes the entire frontier with one move. The leap isn't 5.6. The leap is Mythos.

















