GPT-5.4 Nano vs Kimi K2.6

Price, context window & benchmark comparison

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GPT-5.4 Nano

OpenAI
$0.20 / $1.25
Input / Output · per 1M tokens
VS
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Kimi K2.6

Moonshot AI
$0.95 / $4.00
Input / Output · per 1M tokens
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Verdict: GPT-5.4 Nano is 3.7× cheaper than Kimi K2.6 on a typical 3:1 input/output mix. Kimi K2.6 scores higher on the Artificial Analysis Intelligence Index (27 vs 20.7). GPT-5.4 Nano has the larger context window (400K vs 262K).
GPT-5.4 NanoKimi K2.6
Input price / 1M$0.20$0.95
Output price / 1M$1.25$4.00
Blended price (3:1)$0.46$1.71
Cached input / 1M$0.02$0.16
Context window400K262K
Max output128K236K
Intelligence index20.727
Coding index56.161.8
Providers22
Best provider uptime (30m)100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-03-172026-04-20
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FAQ

Which is cheaper, GPT-5.4 Nano or Kimi K2.6?

GPT-5.4 Nano is 3.7× cheaper than Kimi K2.6 on a typical 3:1 input/output mix.

GPT-5.4 Nano vs Kimi K2.6: which has a bigger context window?

GPT-5.4 Nano: 400,000 tokens. Kimi K2.6: 262,144 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-5.4 Nano ≈ $1,025, Kimi K2.6 ≈ $3,900.

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