Anthropic launched Claude Fable 5 and Claude Mythos 5 with 1M context and adaptive thinking.

Default 1M context makes long inputs a baseline capability on these Claude models, not a separate configuration step.

Builders get Fable 5 broadly; Mythos 5 is limited to Project Glasswing participants.

• Jul 23, 2026OpenAI pricing diff removes Business and Enterprise plan details.
• Jul 23, 2026Anthropic model card now lists Claude Fable 5 and Mythos 5 availability.
• Jul 23, 2026Anthropic pricing removed its team plan recommendation quiz from the monitored page.

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