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Claude Fable 5

GA

Legacy since Claude Fable 5.1 shipped on 2026-09-01: its model page reads 'Legacy. Released June 9, 2026' and 'you should consider migrating to Claude Fable 5.1'; the deprecations table still reads Active with a tentative retirement not sooner than June 9, 2027, so status stays ga. It was Anthropic's most capable widely released model until 5.1. GA on Claude API, Claude Platform on AWS, Amazon Bedrock, Google Cloud, and Microsoft Foundry beginning June 9, 2026. Adaptive thinking always on; no extended thinking. 5m cache write $12.50/MTok, 1h cache write $20/MTok (cached_input field here = Cache Hits & Refreshes $1/MTok). Batch: $5 in / $25 out per MTok. 1M context at standard pricing. Uses the Opus 4.7-generation tokenizer (~30-35% more tokens for the same text vs pre-4.7 models). Dateless model ID is a pinned snapshot. Knowledge cutoff not published on overview page (null).

Claude Fable 5 by Anthropic costs $10 per 1M input tokens and $50 per 1M output tokens ($20/1M blended), with a 1M (1.000.000-token) context window. It is generally available (GA).

Last verified: 24 Oct 2026 · sourced from official provider documentation

Provider
Anthropic
Status
GA
Input price
$10 / 1M tokens
Output price
$50 / 1M tokens
Cached input
$1 / 1M tokens
Blended price
$20 / 1M tokens
Context window
1.000.000 tokens (1M)
Max output
128.000 tokens
Modality
text, image, vision
Open weights
No — API only
Knowledge cutoff
—
Released
9 Jun 2026
API string
claude-fable-5

Source: Anthropic official documentation ↗

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FAQ

Claude Fable 5 — questions & answers

How much does Claude Fable 5 cost?

Claude Fable 5 is priced at $10 per 1M input tokens and $50 per 1M output tokens ($20/1M blended at a 3:1 input-to-output ratio), with cached input at $1 per 1M tokens.

What is the context window of Claude Fable 5?

Claude Fable 5 has a 1.000.000-token context window (1M), with up to 128.000 output tokens per request.

Is Claude Fable 5 deprecated?

No — Claude Fable 5 is generally available (GA) and not currently scheduled for deprecation or retirement in our tracker.

Does Claude Fable 5 support image or vision input?

Yes — Claude Fable 5 accepts image input. Listed modalities: text, image, vision.

Can I self-host Claude Fable 5?

No — Claude Fable 5 is proprietary. Its weights are not publicly released, so it is available only through Anthropic's API (or hosted partners), not for self-hosting.

What is the API model string for Claude Fable 5?

The API model identifier for Claude Fable 5 is "claude-fable-5" when calling Anthropic's API.