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Claude Fable 5

API ID claude-fable-5

claude-fable-5 is an Anthropic model, released June 2026. It has a 1,000,000-token context window and up to 128,000 output tokens. It takes image input and supports reasoning. Standard price: $10.00 input and $50.00 output per 1M tokens.

Status
Active
Released
June 2026
Shutdown
not before Jun 9, 2027
Replacement
—

claude-fable-5 is active. Anthropic says it won't be retired before June 9, 2027.

Benchmarks

Scores as each source published them
or

No comparison. Pick a model to see the difference on each benchmark.

Arena

ArenaClaude Fable 5RankDateSource
Text
By category
  • Math 1524 rank 3
  • Creative writing 1501 rank 3
  • Instruction following 1508 rank 4
  • Hard prompts 1529 rank 5
  • Long prompts 1521 rank 4
  • Multi-turn 1517 rank 3
  • Expert 1551 rank 1
1503 ±44 of 415
41,439 votes		Oct 13, 2026source
Text: Coding1551 ±73 of 410
10,745 votes		Oct 13, 2026source
WebDev1624 ±621 of 142
15,295 votes		Oct 13, 2026source
Vision1308 ±71 of 165
14,175 votes		Oct 9, 2026source
Search1229 ±76 of 42
73,596 votes		Oct 13, 2026source
Document1499 ±81 of 44
8,497 votes		Sep 13, 2026source
Agent0.084 ±0.0149 of 54
42,474 sessions		Oct 14, 2026source

Rated as claude-fable-5-high (high effort). Text, WebDev, Vision, Search and Document ratings come from people voting between two anonymous answers; Text, Vision, Search and Document are style-controlled, as on arena.ai. Agent is Arena's separate score for real agent sessions, on its own scale. Data: Arena (arena.ai), CC BY 4.0.

Epoch AI

BenchmarkClaude Fable 5SettingRunSource
FrontierMath Tier 490.2%max effortJun 9, 2026source
FrontierMath Tiers 1-387.0%max effortJun 9, 2026source
GPQA Diamond
Other settings
  • 83.3% high effort
  • 78.8% low effort
85.9%max effortAug 6, 2026source
OTIS Mock AIME 2024-2025
Other settings
  • 99.7% max effort
  • 97.8% low effort
100.0%high effortAug 6, 2026source
SimpleQA Verified70.7%xhigh effortAug 10, 2026source

Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

On cloud platforms

All platform dates
PlatformPlatform IDStateShutdownTime leftReplacementSource
Amazon Bedrockanthropic.claude-fable-5Activenot before Jun 9, 2027—source
Microsoft Foundryversion 1claude-fable-5ActiveDec 5, 2027416 days—source

Read daily from each platform's own pages. The shutdown date and countdown on this page use Anthropic's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.

Features

Compare models
FeatureValueSinceSource
Prompt cachingA prompt prefix you send again and again (system prompt, documents, tools) is cached, so later requests cost less and start faster.Supportedin place when tracking began (October 6, 2026)source
Batch APISend many requests as one job that runs in the background, usually finished within 24 hours, at a lower price than live requests.Supportedin place when tracking began (October 6, 2026)source
Image inputImages such as screenshots, photos and charts can go in the prompt for the model to read.Supportedin place when tracking began (October 6, 2026)source
Reasoning / thinkingThe model can work through a problem step by step before it answers: usually better answers to hard questions, at the cost of more tokens and time.Supported (thinking: adaptive, always on; default effort: high)in place when tracking began (October 6, 2026)source
Context windowThe most the model can work with in one request, in tokens: your prompt, conversation history and files. A token is about three-quarters of an English word.1,000,000 tokensin place when tracking began (October 6, 2026)source
Max output tokensThe longest reply the model can write in one response, in tokens. A token is about three-quarters of an English word.128,000 tokensin place when tracking began (October 6, 2026)source

Not published by Anthropic: Structured outputs, Function calling, PDF input, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs.

Price history

USD per 1M tokens, standard tier
$0.00$20.00$40.00$60.00Oct 2026In $10.00Out $50.00Oct 1, 2026 to Oct 15, 2026: Input $10.00, Output $50.00
$0.00$20.00$40.00$60.00Oct 2026In $10.00Out $50.00Oct 1, 2026 to Oct 15, 2026: Input $10.00, Output $50.00

We started recording this model's prices on Oct 1, 2026. The history grows with each daily check.

Show as a table
FromTypePrice
Oct 1, 2026Input$10.00
Oct 1, 2026Output$50.00

Prices

USD per 1M tokens, every type and band, by tier
TypePrice $/1MIn effect
Standard
input$10.00
cached input$1.00
cache write (5 min)$12.50
cache write (1 hour)$20.00
output$50.00
Batch
input$5.00
output$25.00

Changelog

Changes we detected on Anthropic's pages

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Last checked · Sources: Anthropic models, Anthropic deprecations, Anthropic pricing, Anthropic model pages