Introducing Claude Haiku 5.5: the cheapest, fastest, and most capable small model we’ve ever released.
On average, it costs around 75% less to run than Claude Haiku 4.5.↗
As of today, Devin Fusion now incorporates Fable 5.
Surprisingly, Fable 5 runs at a lower cost per task than Opus 4.8.
Even though it’s a more expensive model, we observed cost efficiency improvements in areas like delegation and reasoning chains.↗