Anthropic: Claude Fable 5.1

Claude

Multimodal

Paid

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...

Parameters

Context Window

1,000,000

tokens

Input Price

$10

per 1M tokens

Output Price

$50

per 1M tokens

Capabilities

Model capabilities and supported modalities

Performance

Reasoning

Excellent reasoning capabilities with strong logical analysis

Math

Capable of solving most mathematical problems accurately

Coding

Specialized in code generation with excellent programming capabilities

Knowledge

Extensive knowledge base with broad coverage of topics

Modalities

Input Modalities

text,image,file

Output Modalities

text

LLM Price Calculator

Calculate the cost of using this model

Input Tokens (0.00001000/token)$0.015000

Output Tokens (0.00005000/token)$0.150000

Common Scenarios:

Input Cost:$0.015000

Output Cost:$0.150000

Total Cost:$0.165000

Estimated usage: 4,500 tokens

Monthly Cost Estimator

Based on different usage levels

Light Usage

$0.6000

~10 requests

Moderate Usage

$6.0000

~100 requests

Heavy Usage

$60.0000

~1000 requests

Enterprise

$600.0000

~10,000 requests

Note: Estimates based on current token count settings per request.

Last Updated: 2026/09/29