Models & Labs
Claude Fable 5 now available in GitHub Copilot
GitHub Changeloghigh confidence
Why it matters
- →Claude Fable 5 introduces a new approach to data retention for safety in AI models.
- →It enhances coding efficiency with fewer tool calls and lower token consumption.
- →This model expands the capabilities of GitHub Copilot for enterprise users.
Anthropic's Claude Fable 5 model is now available in GitHub Copilot, marking the first Mythos class model designed for autonomous coding and knowledge tasks. Unlike previous models, Claude Fable 5 requires data retention for up to 30 days to operate safety classifiers, a departure from the zero data retention policy of other Claude models. This model is available to Copilot Pro+, Max, Business, and Enterprise users and promises more efficient coding with fewer tool calls. The rollout will be gradual, and administrators must enable the policy to access the model.
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