Claude Fable 5
Next generation of intelligence for the hardest knowledge work and coding problems.
Claude Fable 5 is Anthropic's generally available fifth-generation Claude model release for demanding reasoning, long-horizon agentic work, coding, knowledge work, and vision tasks. It is exposed in the API as claude-fable-5 and includes safeguards that may refuse or fall back on some requests.
Pricing
Official Anthropic pricing also lists prompt cache write rates for Claude Fable 5: 5-minute cache writes $12.50 per 1M tokens and 1-hour cache writes $20 per 1M tokens.
Anthropic's official Claude Platform Docs pricing page lists Claude Fable 5 model pricing in USD per MTok: Base Input Tokens $10 / MTok, Cache Hits & Refreshes $1 / MTok, and Output Tokens $50 / MTok. The page states MTok means million tokens and all prices are in USD.
Model Intelligence
Recent stories
Anthropic said flagged Fable 5 requests will now visibly fall back to Opus 4.8, and API refusals will return reasons instead of silently degrading output. The update matters because users were reporting sudden quality drops, opaque refusals, and quota-burn confusion around Mythos-class safeguards.
Creators pushed Claude Fable 5 into browser platformers, a GTA 2 clone, a SNES port, CAD models, and a webcam fruit-slicing game. The demos show playable prototypes can now come from prompts plus a few follow-up fixes, so creators can move faster from idea to test build.
Fable 5 demos moved into landing pages, brand tools, launch-video editing, and scriptwriting with Higgsfield MCP. The pattern matters because design direction is becoming promptable, but creators still need structured prompts and tool chaining to finish work.