Anthropic added Claude Fable 5 and Claude Mythos 5 to its model card.

Model selection guidance now points highest-capability workloads to Fable 5, while Opus 4.8 remains for complex enterprise work.

Claude Mythos 5 shares Fable 5 specs and pricing, but remains limited to approved Project Glasswing customers.

• Jul 24, 2026ChatGPT Voice is now available in Work and Codex in the ChatGPT desktop app.
• Jul 24, 2026OpenAI pricing page removed prior Business and Enterprise plan text.
• Jul 24, 2026Anthropic model card no longer lists Claude Fable 5 and Claude Mythos 5.

This is the world we build in. It moves this fast. We move with it.