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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...

Input Price$10.00/1M tokens
Output Price$50.00/1M tokens
Intelligence56.8
Coding81.6

Specifications

Technical details and pricing.

ProviderAnthropic
Context Window1,000,000 tokens
Release DateSep 1, 2026
ModalitiesText, Image → Text
CapabilitiesFunction Calling, Vision
AvailabilityChat only

Inference API

Power your AI projects with open-source models.

OpenAI-compatible API. Processing terms vary by selected model; review the current Privacy Policy and DPA before using sensitive data.

MiniMax

MiniMax M3

$0.40 / $1.40

per M tokens

Z.ai

GLM 5.3 Flash

$0.20 / $0.60

per M tokens

MoonshotAI

Kimi K3

$4.00 / $18.00

per M tokens

DeepSeek

DeepSeek V4 Pro

$1.80 / $3.60

per M tokens

Frequently Asked Questions

What is Claude Fable 5.1 good for?

Use Claude Fable 5.1 for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.

How much does Claude Fable 5.1 cost?

Pricing is based on usage. Current rates are $10.00/1M tokens for input and $50.00/1M tokens for output.

Can I use Claude Fable 5.1 in LLMBase Chat?

Yes. Use the chat action on this page to open Claude Fable 5.1 in LLMBase Chat. Access still follows the current plan and model tier.

Does Claude Fable 5.1 support images or audio?

Claude Fable 5.1 can understand images.

Benchmarks and pricing use Artificial Analysis where available. Catalog specs are used as a fallback.