Anthropic: Claude Fable 5.1
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work:…
AnthropicClaude Fable 5.1
anthropic/claude-fable-5.1Intelligence index
50
Artificial Analysis
Coding index
80.7
Artificial Analysis
Agentic index
57.2
Artificial Analysis
Design Arena
1327 Elo · #1
godotgamedev · 60.7% wins
Input
$10
per 1M tokens
Output
$50
per 1M tokens
Cached input
$0.25
per 1M tokens
Context
1M
tokens it reads
Max output
128K
tokens it writes
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
inspect — the catalog entry
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}References (1)
- Stored model catalog — Nov 7, 2026