Brain
A large language model in Anthropic's Claude Fable line. In Mecka's WetLabs Benchmark (Sep 2026), which had frontier models drive two-arm robot rigs through nine lab tasks with no demonstrations or fine-tuning, it completed 12.2% of attempts.
Foundation model · Closed
Machine-readable surfaces
- Markdown mirror: /brains/claude-fable-5-1.md
- RSS feed: /brains/claude-fable-5-1/feed.xml
- JSON-LD: embedded in this page’s head
- REST API: /v1/brains/42be8c34-3477-4c18-a4ad-b192f6e43609
- Revision history: /brains/claude-fable-5-1/history
- Data documentation: /data
- Query this programmatically: Deploy MCP
Developed by (1)
Mentioned on (1)
Registry pages whose text names Claude Fable 5.1.
Companies (1)
Common questions
What is Claude Fable 5.1?
Who developed Claude Fable 5.1?
Claude Fable 5.1 is credited to Anthropic on the DEPLOY registry. Each developer attribution is verified via primary sources.
Is Claude Fable 5.1 open source?
No. Claude Fable 5.1 is recorded as proprietary on the DEPLOY registry. Model weights and source are not publicly available.
What type of AI is Claude Fable 5.1?
Claude Fable 5.1 is a foundation model on the DEPLOY registry.
Which robots run on Claude Fable 5.1?
No robot models on the DEPLOY registry are recorded as running Claude Fable 5.1. DEPLOY wires brain-to-model connections only when the wiring is verifiable from primary sources; absence may reflect pre-deployment or unverified manufacturer claims.
Sources (3)
Methodology: Verified · 3 sources (1 primary) · last reviewed 2026-10-10
Verification posture
Verified
High confidence
Review state
Stable
Last reviewed 2026-10-10
Sources by quality tier
- 2
- unclassified
- Unclassified source
- 1
- primary-company-ir
- Company IR disclosure
The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.
Methodology surface for Claude Fable 5.1.Canonical ID 42be8c34-3477-4c18-a4ad-b192f6e43609