AI · Source-backed update

Claude Fable 5.2: access and Copilot costs

Fable 5.2 reaches Copilot with plan, policy and retention conditions. API token rates differ from a monthly subscription; Mythos access requires verification.

Published Anthropic & GitHub · Announced 9 NovemberEdited by Clinton Feyisitan

Review scope: official launch, Copilot access notice and USD model rate table read 10 November 2026. No model run, account entitlement check or independent quality comparison.

Which access do you have?

Anthropic announced Claude Fable 5.2 and Mythos 5.2 on 9 November. They share an underlying model with different safeguards. Mythos requires access through Anthropic’s verification programs; its launch does not make it a general consumer subscription. Read Anthropic’s announcement.

GitHub lists Fable 5.2 for Copilot Pro+, Max, Business and Enterprise, with a gradual rollout. Its notice includes the IDEs, CLI, coding agent, app, web and mobile surfaces. Business and Enterprise administrators must enable the model policy, which starts off. This is not an entitlement announcement for Copilot Pro or Free. Check GitHub’s access notice.

What does a request cost?

GitHub’s published Fable 5.2 rates are USD 8 input, USD 0.20 cached input, USD 10 cache write and USD 40 output per million tokens. These are usage rates, not a monthly subscription. The total depends on token consumption, included plan credits and budget settings. See the model billing table.

Check data handling separately

GitHub says Fable 5.2 retains prompts and outputs by default for safety monitoring, not model training. Its enterprise zero-retention exemption has eligibility conditions and is time-limited through the end of 2026 while Enterprise Frontier Safeguards rolls out. Approval still requires an administrator to enable the model.

Provider capability claims do not establish a new Fewertools winner. Compare your Copilot access and plan scope, read the Claude profile, or use the coding bill guide to distinguish subscription fees from metered usage. Dated source receipts and limitations.