I gave Fable 5 one job: write custom WebGPU kernels for Gemma 4 inference.
It climbed to 84 tok/s, then hit a wall, insisting further optimization was impossible.
Hours later, Anthropic rolled back invisible LLM development safeguards, and it hit 255 tok/s.
The next day, access to Fable 5 was suspended globally.
CLAUDE Fable 5 IS A BRUTAL TOOL.
20-minute tutorial to create entire websites with Claude Fable 5 Opus 4.7.
Here it is. ⬇️