Fable 5 is state-of-the-art on nearly all tested benchmarks, with exceptional performance in software engineering, knowledge work, scientific research, and vision.
The longer and more complex the task, the larger Fable 5’s lead over our other models.
New in Claude Code: /ultraplan
Claude builds an implementation plan for you on the web. You can read it and edit it, then run the plan on the web or back in your terminal.
Available now in preview for all users with CC on the web enabled.