Claude Fable 5 vs Claude Fable 5.1

Price, context window & benchmark comparison

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Claude Fable 5

Anthropic
$10.00 / $50.00
Input / Output · per 1M tokens
VS
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Claude Fable 5.1

Anthropic
$10.00 / $50.00
Input / Output · per 1M tokens
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Verdict: Claude Fable 5.1 scores higher on the Artificial Analysis Intelligence Index (53.4 vs 49.6).
Claude Fable 5Claude Fable 5.1
Input price / 1M$10.00$10.00
Output price / 1M$50.00$50.00
Blended price (3:1)$20.00$20.00
Cached input / 1M$1.00$0.25
Context window1M1M
Max output128K128K
Intelligence index49.653.4
Coding index76.581.6
Providers64
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-06-092026-09-01
Retirement

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FAQ

Which is cheaper, Claude Fable 5 or Claude Fable 5.1?

Claude Fable 5 and Claude Fable 5.1 are priced identically.

Claude Fable 5 vs Claude Fable 5.1: which has a bigger context window?

Claude Fable 5: 1,000,000 tokens. Claude Fable 5.1: 1,000,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Fable 5 ≈ $45,000, Claude Fable 5.1 ≈ $45,000.

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