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Fable 5 API pricing, benchmarks and specs | AshnaAI

Anthropic

Fable 5

Claude Fable 5 is Anthropic's long-horizon reasoning model for demanding analysis and autonomous agent workflows.

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Model details

Model ID: claude-fable-5
Provider: Anthropic
Modality: Text generation
Context window: 1,048,576 tokens
Input → output: Text → text
Released: Jun 9, 2026
Available on AshnaAI: Oct 3, 2026

Where this model fits

Best capabilities

Multi-step reasoning and complex instruction following
Tool calling and agent workflows
Web-connected research tasks
Long-context analysis across large inputs

Best for

Complex analysis, planning, research, and high-stakes knowledge work
Tasks where response quality matters more than minimum latency
Agents that need to call APIs or execute multi-step workflows

Not ideal for

Image, screenshot, or visual-document analysis
Ultra-low-cost, latency-sensitive, high-volume classification

Benchmarks

No comparable, source-verified benchmark has been published for this catalog entry yet.

Pricing (USD)

Limited-time 30% discount

Input / 1M tokens: $12.05$8.43
Output / 1M tokens: $60.24$42.17
Cached input / 1M: $1.2$0.843
Cache write / 1M: $15.06$10.54

Capabilities

reasoningSupported
toolsSupported
vision—
web searchSupported
files—

Available regions

US East (N. Virginia)

us-east-1

Europe (Frankfurt)

eu-central-1

Asia Pacific (Mumbai)

ap-south-1

Multi-region and provider failover: Active

Requests automatically switch to another region or provider if one becomes unavailable.