How to start using Claude Fable 5.2, according to Anthropic
1. Prerequisite: Anthropic says Claude Fable 5.2 is available on all platforms, including Amazon Web Services, Google Cloud, and Microsoft Azure, and developers can get started on the Claude Platform with the model name `claude-fable-5-2`. 2. If you want faster responses, Anthropic says Fable 5.2 includes an optional fast mode that speeds token generation by up to 2.5 times, with separate pricing. 3. Anthropic recommends Fable and Mythos for the most ambitious, open-ended technical work, while suggesting Opus 5.5 for most coding and knowledge tasks before switching models as needed. 4. Limitations: Fable 5.2 includes safety classifiers that block high-risk cyber activities and most research-biology tasks, and blocked queries are routed to other models for some topics. This is a documentation-based guide, not hands-on testing.
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