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Claude API field notes

Original comparisons, setup notes and product context written for people deciding what to install, host or subscribe to.

Claude Fable 5: New Features, Pricing, Availability, and API Changes
Artificial Intelligence Claude Anthropic

Claude Fable 5: New Features, Pricing, Availability, and API Changes

Claude Fable 5 adds longer autonomous work, stronger coding and vision, better subagent delegation, adaptive effort controls, new safety fallbacks, and a different data-retention policy. Here is what changed.

Jonah Park
Jonah Park · · 12 min read