GitHub 和 Anthropic 让 Claude Fable 5 回归 Copilot，专攻长周期自主编码，写复杂任务更顺手。
Anthropic 的 Claude Fable 5，即 Mythos 模型系列的第一款，已在 GitHub Copilot 中重新启用并正式可用。该模型专为长周期自主编码和知识工作任务设计，支持在 VS Code 或 GitHub Copilot 应用中使用。此举恢复了此前可能暂停的服务，并扩大了用户访问范围。
.@AnthropicAI's Claude Fable 5 is now re-enabled and generally available in GitHub Copilot.
. @AnthropicAI 's Claude Fable 5 is now re-enabled and generally available in GitHub Copilot. GitHub @github 📣 Claude Fable 5, the first in @AnthropicAI 's Mythos model class, is now generally available and rolling out in GitHub Copilot. It is designed for long-horizon, autonomous coding and knowledge-work tasks. Try it out in @code or the GitHub Copilot app. ⬇️ github.blog/changelog/2026… Y Your browser does not support the video tag. 🔗 View on Twitter 🔗 View Quoted Tweet 💬 6 🔄 19 ❤️ 106 👀 13646 📊 15 ⚡