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Sonnet 5 的基准测试不如 Opus 4.8，但通过 Claude Code 中的三步设置（/model Sonnet 5，/effort Ultracode，复杂任务自动触发 Dynamic Workflow）可以充分发挥其优势，配合 Fable 5 作为智能顾问，实现模型分工协作。
Fable 5 resumed after a 19-day suspension due to US government export controls, with some changes during that time.
Anthropic announced the return of Fable 5 with a pixel monster animation video, using a light and creative approach to conclude the 19-day export control turmoil.
Fable 5 is a model router for Opus models, noted as the most expensive ever constructed.
A tweet thread explaining how to configure Fable 5 as the orchestrator with Opus and Sonnet as subagents, plus Codex as a peer engineer, in Claude Code to optimize model usage and task delegation.
A user questions why widespread white-collar unemployment hasn't occurred despite frontier models like Fable 5 and GPT 5.6 benchmarks showing capability for most tasks, and seeks clarification on remaining bottlenecks and adoption realities.
Anthropic reinstated Claude Fable 5 after US export restrictions were lifted, and is collaborating with Amazon, Microsoft, Google on a shared framework to assess AI jailbreak severity across the industry.
Anthropic is redeploying Claude Fable 5 with stronger safety filters that may block harmless requests, causing fallback to Opus 4.8. Users are advised not to switch entirely on day one and to test real workflows first.
According to Anthropic, Fable 5 development will shift to using the Opus 4.8 AI model for coding tasks.
Anthropic announces that export controls on its Claude Fable 5 and Mythos 5 models have been lifted by the Department of Commerce, with access to be restored soon.
The Trump administration has lifted restrictions on Anthropic's Fable 5 model, indicating a shift in AI policy.
Anthropic announces that Claude Fable 5, its consumer-facing AI model sidelined due to Trump administration export controls, has been greenlit to return, with access restoration beginning tomorrow after weeks of negotiations.
Howard Lutnick announces collaboration with Anthropic to analyze and approve 'Fable 5' for US government AI alignment, with Susie Wiles praising President Trump's AI leadership.
Export controls on Anthropic's Fable 5 AI model have been officially lifted, as confirmed by Howard Lutnick, signaling government alignment and support for U.S. AI leadership.
The Trump Administration has announced that all users, including international, will regain access to Fable 5, an AI model by Anthropic, following a policy change.
According to rumors, a certain new model from zAI is at least as strong as Fable 5 in cybersecurity capabilities, but information is limited, only citing a Wall Street Journal article discussing GLM 5.2.
Speculation suggests that Fable 5 and GPT-5.6 may be cleared for public release next week, potentially to limit Chinese AI labs' access to distillation while US labs continue internal use.
Anthropic's powerful model, Fable 5, is reportedly on track to return soon, according to a scoop.
Insiders from Anthropic and the US government expect that limits on the AI model codenamed Fable 5 could be lifted as early as next week, according to Axios.