Claude Fable 5.1
by Anthropic · claude-fable family · released 2026-09-01
On output pricing, Claude Fable 5.1 is cheaper than 35 of the 699 priced models tracked here, at $50/Mtok. Its 1,000,000-token context window is larger than 673 of 813 models. Capabilities: vision, tools, reasoning, structured output.
Specifications
| Provider | Anthropic |
| Family | claude-fable |
| Input price | $10/Mtok |
| Output price | $50/Mtok |
| Cache read price | $0.25/Mtok |
| Cache write price | $12.5/Mtok |
| Context window | 1,000,000 |
| Max output tokens | 128,000 |
| Input modalities | text, image, pdf |
| Output modalities | text |
| Capabilities | vision, tools, reasoning, structured output |
| Knowledge cutoff | 2026-06-01 |
| Released | 2026-09-01 |
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