Claude Fable 5.1 vs Kimi K3

Price, context window & benchmark comparison

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Claude Fable 5.1

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

Kimi K3

Moonshot AI
$3.00 / $15.00
Input / Output · per 1M tokens
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Verdict: Kimi K3 is 3.3× cheaper than Claude Fable 5.1 on a typical 3:1 input/output mix. Claude Fable 5.1 scores higher on the Artificial Analysis Intelligence Index (53.4 vs 43.6). Kimi K3 has the larger context window (1M vs 1M).
Claude Fable 5.1Kimi K3
Input price / 1M$10.00$3.00
Output price / 1M$50.00$15.00
Blended price (3:1)$20.00$6.00
Cached input / 1M$0.25$0.30
Context window1M1M
Max output128K944K
Intelligence index53.443.6
Coding index81.676.2
Providers420
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-012026-07-16
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FAQ

Which is cheaper, Claude Fable 5.1 or Kimi K3?

Kimi K3 is 3.3× cheaper than Claude Fable 5.1 on a typical 3:1 input/output mix.

Claude Fable 5.1 vs Kimi K3: which has a bigger context window?

Claude Fable 5.1: 1,000,000 tokens. Kimi K3: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Fable 5.1 ≈ $45,000, Kimi K3 ≈ $13,500.

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