Claude Fable 5.1: Long-horizon agentic work with up to 1M tokens of context
When a scenario needs to review long research, customer feedback, and approved account context before preparing a next step, Claude Fable 5.1 can process that larger body of material in the workflow.
Anthropic’s Claude Fable 5.1 is now available in Make. Use it with Make AI Agents, Make AI Toolkit, and the Anthropic Claude app to automate complex workflows.
What’s new in Claude Fable 5.1
Long-horizon work: Anthropic documents Claude Fable 5.1 for long-horizon, agentic work in multi-step automations.
More context to consider: The model supports up to 1M tokens of context for workflows that need to process large source materials.
Larger outputs: The documented maximum output is up to 128K tokens when a workflow needs a substantial response.
Claude Fable 5.1 use cases for Make automation
Synthesize launch research: Collect product, customer, and market inputs, then prepare an internal launch brief with the key context.
Review decisions and risks: Send long documents, spreadsheets, or slide decks through a scenario to extract decisions, risks, and action items.
Triage feedback and draft account materials: Group complex customer feedback into themes and recommended next actions, or prepare account-specific sales, enablement, or RFP drafts from approved CRM and knowledge-base context.
For cost optimization, we recommend using Claude Fable 5.1 for complex or low-confidence cases rather than routine, high-volume AI automation tasks.
How to use Claude Fable 5.1 in Make
Claude Fable 5.1 is available in these Make native apps:
Make AI Toolkit for quick setup, no API key required.
Anthropic Claude app for advanced prompts using your Anthropic API key.
Make AI Agents for agentic workflow automations, using Make AI Provider or your Anthropic API key
Anthropic Claude models are available through Make AI Provider, ready to use in Make AI Agent, the Make AI Toolkit, and beyond: no Anthropic account, no separate bill, just pick the model and start automating.
Learn more:
App update: Anthropic Claude models are available in Make AI Provider
Try Claude models in Make with the Anthropic Claude app: https://apps.make.com/anthropic-claude
Claude Fable 5.1 gives your Make workflows more room to work through complex business context before deciding what happens next.
Happy automating! 
Valery from Make
Helpful resources
🔥 App Update: Claude Fable 5 is available in Make
🔥 App update: Anthropic Claude models are available in Make AI Provider