Claude Fable 5

Claude Fable 5 for ambitious knowledge work, complex coding, long-running agents and multi-day enterprise workflows

Published

scheduleReleased：June 9, 2026

Claude Fable 5 is an Anthropic Claude model for ambitious knowledge work, complex coding, long-running agents and multi-day enterprise workflows, with a focus on long-context understanding, writing quality and reliable analysis.

starsCapabilities

visibilityVision understandingcodeFunction callingstreamStreaming outputdata_objectStructured output

paymentsContext and pricing

Context limit1,000,000

Max output128,000

Input price$10/ 1M tokens

Output price$50/ 1M tokens

Cached input price$1/ 1M tokens

descriptionOverview

Overview

Claude Fable 5 is part of the official Anthropic Claude model family, with model ID claude-fable-5. Claude models are commonly evaluated for long-context understanding, careful writing, coding assistance and safety-aware enterprise workflows.

Best for

Use Claude Fable 5 when your product needs document analysis, code review, enterprise Q&A, agent workflows or high-quality writing. Test long-context reliability, refusal boundaries, tool behavior, cost and latency before production.

lightbulbUse cases

Long-document analysis and summarization
Code review and rewriting
Enterprise knowledge Q&A
Agent and tool workflows

thumb_upStrengths

Strong fit for long-context tasks
Careful writing and analysis style
Useful for enterprise safety requirements
Easy to tier against Haiku, Sonnet and Opus

infoLimitations

Cost and latency vary by tier
Tool workflows and long-running tasks need testing
Some workloads may be better on a smaller model
Capabilities depend on Anthropic documentation

linkReferences

open_in_newhttps://www.anthropic.com/claude/fable