Anthropic: Claude Fable 5.1 (batch)
Analysis Summary
Claude Fable 5.1 (batch) is a batch endpoint in Anthropic's Fable family. The listed configuration supports a one-million-token context, image and file input, tool use, and function calling. No independent benchmark results are provided for this batch variant, so its reasoning, coding, and agentic performance cannot be established from the available data.
The listed context and integrations could suit document-heavy workflows or queued tasks where long inputs and tool access matter. However, the absence of variant-specific results leaves content quality and production reliability unverified, which makes it difficult to recommend for client-facing work without a pilot. Its listed pricing is lower than the standard Fable 5.1 entry, but output remains costly compared with budget options. Consider it for controlled batch evaluations, not as a proven replacement for a benchmarked model.
Assessed September 23, 2026
Editorial notes
This batch endpoint lists a one-million-token context, vision, file input, and tool calling, but no independent benchmark results are provided to verify its reasoning or coding performance.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
This batch endpoint lists a one-million-token context, vision, file input, and tool calling, but no independent benchmark results are provided to verify its reasoning or coding performance.
How Anthropic: Claude Fable 5.1 (batch) compares
Its 1M-token context window is larger than 82% of the models we list. At $5.00 per million input tokens it is cheaper than 7% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on business fit. The pulled-in technical corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $5.00 | $0.005000 |
| Output | $25.00 | $0.025000 |
What would Anthropic: Claude Fable 5.1 (batch) cost your business?
Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.
A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 803 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save Anthropic: Claude Fable 5.1 (batch) for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout Anthropic: Claude Fable 5.1 (batch)
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..
Frequently asked questions about Anthropic: Claude Fable 5.1 (batch)
How much does Anthropic: Claude Fable 5.1 (batch) cost?
Anthropic: Claude Fable 5.1 (batch) costs $5.00 per million input tokens and $25.00 per million output tokens.
What is the context window of Anthropic: Claude Fable 5.1 (batch)?
Anthropic: Claude Fable 5.1 (batch) has a context window of 1,000,000 tokens (1M).
What can Anthropic: Claude Fable 5.1 (batch) do?
Anthropic: Claude Fable 5.1 (batch) supports image/vision input, tool use, and function calling.
Who created Anthropic: Claude Fable 5.1 (batch)?
Anthropic: Claude Fable 5.1 (batch) is developed by Anthropic and was released on September 1, 2026.