Model comparison
Claude Fable 5.1 vs Claude Fable 5 (batch)
Compare published model capabilities and API prices.
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: long code refactors, fro
Anthropic
Claude Fable 5 (batch)
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning sup
| Metric | Claude Fable 5.1 | Claude Fable 5 (batch) |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Context window | 1,000,000 | 1,000,000 |
| Input $/Mtok | $10.00 | $5.00 |
| Output $/Mtok | $50.00 | $25.00 |
| Modalities | text, vision | text, vision |
| License | unknown | closed |
Quick take
On input price, Claude Fable 5 (batch) is cheaper at $5.00/Mtok. For context window, Claude Fable 5.1 leads with 1,000,000 tokens.
Pick based on your workload: high-volume cheap inference vs long-document / agent loops. Enterprise DNA can wire either model into Omni with evals, secrets, and job orchestration.