OpenCraft

anthropic · chat model

Try Claude Fable 5.1 onlinenew

anthropic/claude-fable-5.1

Added to OpenRouter: 1 Sept 2026

Tracking since: · Specs updated:

Use Claude Fable 5.1 in your browser. Explore pricing and capabilities below, or start a chat in OpenCraft.

Input price$10.00per M tokenscheaper than 3% of chat models
Output price$50.00per M tokenscheaper than 3% of chat models
Cache read$0.25per M tokens
Context window1Mtokensof the largest window in the catalog (10M)

Claude Fable 5.1 pricing: what a turn costs

Estimates from the published token rates above — real turns vary with tool calls and transcript length.

  • Quick answer2K tokens in, 600 out$0.05
  • 10-slide deck build60K tokens in, 9K out$1.05
  • 150-page PDF read200K tokens in, 4K out$2.20

Specs and listed prices from OpenRouter. Actual usage cost depends on the serving provider.

How to use Claude Fable 5.1

  1. Select “Try Claude Fable 5.1 online” to open OpenCraft with this model selected.
  2. Sign in or create an account if prompted.
  3. Type a question or describe a task, then send your message.

To compare answers, start a separate chat with another model and use the same prompt.

Claude Fable 5.1 capabilities

tool-usevisionreasoning

text, image, file in → text out

Create with OpenCraft

See example outputs and find a workflow for your next project.

Create an editable presentation with AIHow to generate a report with AIHow to generate a spreadsheet with formulas you can check

Compare Claude Fable 5.1 with other models

Related earlier models and recent alternatives at similar token prices. Compare the specs; prices alone do not measure answer quality.

Claude Fable 5.1 vs GPT-6 AstraClaude Fable 5.1 vs Muse Spark 1.3Claude Fable 5.1 vs Qwen3.8 Max (0902)Claude Fable 5.1 vs GLM 5.3