Mythos-5
- 2026-06-27 | Frontier Model Access: Fable, Mythos, GPT-5.6 Fable 5 is restored globally, while Mythos 5 and GPT-5.6 remain approval-sensitive. These are different access mechanisms, not one licensing regime.
- 2026-06-11 | Claude Fable 5 Restored: Cost and Guardrails Fable 5 is generally available but credit-controlled. Compare its $10/$50 price, safeguards, retention, and Opus 5 alternative.