Question 1

What is the cost of Claude Fable 5 by GitHub Copilot?

Accepted Answer

Claude Fable 5 by GitHub Copilot costs $10.00 per 1M input tokens and $50.00 per 1M output tokens. Cached reads cost $1.00 per 1M tokens. Cache writes cost $12.50 per 1M tokens.

Question 2

What is the context window of Claude Fable 5 by GitHub Copilot?

Accepted Answer

Claude Fable 5 by GitHub Copilot has a context window of 1.0M tokens. It supports up to 1.0M input tokens and can generate up to 128K output tokens.

Question 3

What are the capabilities of Claude Fable 5 by GitHub Copilot?

Accepted Answer

Claude Fable 5 by GitHub Copilot supports advanced reasoning, tool calling/function calling, file attachments. It has closed weights.

Question 4

What input and output types does Claude Fable 5 support?

Accepted Answer

Claude Fable 5 by GitHub Copilot accepts text, image, pdf as input and can generate text as output.

Question 5

Does Claude Fable 5 by GitHub Copilot support reasoning?

Accepted Answer

Yes, Claude Fable 5 by GitHub Copilot supports advanced reasoning capabilities.

Question 6

Is Claude Fable 5 by GitHub Copilot open source?

Accepted Answer

No, Claude Fable 5 by GitHub Copilot has closed weights. The model is only available through the GitHub Copilot API.

Question 7

Does Claude Fable 5 support function calling?

Accepted Answer

Yes, Claude Fable 5 by GitHub Copilot supports tool calling (also known as function calling), allowing it to interact with external tools and APIs during conversations.

Question 8

What is the knowledge cutoff date for Claude Fable 5?

Accepted Answer

Claude Fable 5 by GitHub Copilot has a knowledge cutoff date of 2026-01-31. This means the model was trained on data available up until that date.

Claude Fable 5 API

Input Modalities

Output Modalities

Standard (per 1M tokens)

Caching (per 1M tokens)