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, front-end and visual...
Anthropic Claude Fable 5.1 costs $10.00 per 1M input tokens and $50.00 per 1M output tokens at the standard tier, the lowest default-region price among the 4 providers SF·SIX tracks, from Anthropic. Cached input reads cost $0.25 per 1M tokens. Updated ; prices checked .
- Developer
- Anthropic
- Input modalities
- text, image, file
- Output modalities
- text
- Context tokens
- 1,000,000
- Latest price observation
- 2026-10-17
- Lowest paired standard token quote
- $10.00 input / $50.00 output per 1M tokens
Dated price and provider records
| Provider and channel | Input | Output or native rate | Unit and status | Source and observation |
|---|---|---|---|---|
| Amazon BedrockOpenRouter | $10.00 | $50.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
| AnthropicOpenRouter | $10.00 | $50.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
| AzureOpenRouter | $10.00 | $50.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
| GoogleOpenRouter · Global endpoint | $10.00 | $50.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
Batch and free variants
- Claude Fable 5.1 (batch) · from $5.00 input / $25.00 output per 1M tokens
Prices by service tier
| Tier | Input / 1M | Output / 1M | Cache read / 1M | Cheapest provider | vs standard (blended) |
|---|---|---|---|---|---|
| Standard | $10.00 | $50.00 | $0.25 | Anthropic | 100% |
| BatchBatch endpoint | $5.00 | $25.00 | $0.125 | OpenRouter (auto-routed) | 50% |
Each tier’s cheapest endpoint. Standard is the default-region headline; flex and batch trade speed or latency for a lower price, priority and fast cost more for faster service.
Speed by provider
| Provider and terms | Throughput | Latency | Uptime | Input / 1M |
|---|---|---|---|---|
| GoogleGlobal endpoint | 74 tok/s | 4.91 s | Not reported | $10.00 |
| Anthropic | 58 tok/s | 3.27 s | 100.0% | $10.00 |
| Azure | 58 tok/s | 7.45 s | Not reported | $10.00 |
| Amazon Bedrock | 51 tok/s | 15.0 s | Not reported | $10.00 |
Previous 30 minutes; reported by OpenRouter. Fastest first.
Benchmarks
Artificial Analysis Intelligence Index 53.4, coding index 81.6, agentic index 57.9 (Artificial Analysis via OpenRouter, CC BY 4.0; not an SF·SIX measurement).
Prediction markets
Anthropic Claude Fable 5.1 meets the rule for SF·SIX price ladders; the current average standard input price across qualifying OpenRouter endpoints is $10.00 per 1M tokens. Open Anthropic Claude Fable 5.1 markets (Hedera testnet, test funds only) · How AI prediction markets work
Compare and estimate
Sources and method
Prices are USD per 1M tokens at the standard service tier in the default region: the cheapest qualifying provider per model, with flex, batch, priority and fast endpoints and unusually low outliers never used as the headline. “Blended” weights input and output 3:1. Prices from OpenRouter; each row below links its source and observation date. Methodology and editorial policy.
Frequently asked questions
How much does Anthropic Claude Fable 5.1 cost per 1M tokens?
$10.00 per 1M input tokens and $50.00 per 1M output tokens at the standard tier, the lowest default-region price SF·SIX tracks, from Anthropic. The cheapest batch price is $5.00 input and $25.00 output per 1M tokens.
Which providers offer Anthropic Claude Fable 5.1?
4 providers with 4 priced endpoints: Amazon Bedrock, Anthropic, Azure, Google.
What is the context window of Anthropic Claude Fable 5.1?
1,000,000 tokens.
How fast is Anthropic Claude Fable 5.1?
The fastest measured endpoint is Google (Global endpoint) at 74 tok/s, as reported by OpenRouter for the previous 30 minutes.
These are dated, non-executable observations. Verify the exact endpoint, price and terms with the source before use. Unknown values are not free.