Fable 5 as an agent: only the last thing it tells you is real(matrix.dev)

Fable 5 as an agent: only the last thing it tells you is real

https://matrix.dev/blog-2026-06-10

1 comments

This means that, in practice, it functions more like an agent than a streaming text model. That in turn breaks trajectory analysis which not only makes distillation harder, it also makes it much harder to improve your own harnesses and agents built on top of the model.