A premium Anthropic model for demanding reasoning and long-horizon agentic work, with vision and 1M context.
Get StartedRun /model and pick Claude Fable 5.1 · $10/M input · $50/M output
Key capabilities and pricing
Adaptive thinking for complex, long-horizon work.
Understands screenshots, diagrams, and other visual evidence.
Keeps large repositories and long sessions in context.
Available in AdaL CLI and Desktop through the model selector
Use the coding environment where AdaL already understands your repo, tools, and task context.
Open the model selector and choose your model from the list.
Ask AdaL to inspect, plan, edit, test, and review with your chosen model powering the agent loop.
Open AdaL CLI or Desktop, run /model, and choose Claude Fable 5.1.
Get Started with AdaL