GPT-5.6 Luna vs Kimi K2.7 Code

Price, context window & benchmark comparison

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GPT-5.6 Luna

OpenAI
$0.20 / $1.20
Input / Output · per 1M tokens
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Kimi K2.7 Code

Moonshot AI
$0.71 / $3.30
Input / Output · per 1M tokens
Compare different models
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Verdict: GPT-5.6 Luna is 3.0× cheaper than Kimi K2.7 Code on a typical 3:1 input/output mix. GPT-5.6 Luna scores higher on the Artificial Analysis Intelligence Index (37.3 vs 25.8). GPT-5.6 Luna has the larger context window (1.1M vs 262K).
GPT-5.6 LunaKimi K2.7 Code
Input price / 1M$0.20$0.71
Output price / 1M$1.20$3.30
Blended price (3:1)$0.45$1.35
Cached input / 1M$0.02$0.18
Context window1.1M262K
Max output128K236K
Intelligence index37.325.8
Coding index71.460.8
Providers715
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-07-092026-06-12
Retirement——

Cost calculator

FAQ

Which is cheaper, GPT-5.6 Luna or Kimi K2.7 Code?

GPT-5.6 Luna is 3.0× cheaper than Kimi K2.7 Code on a typical 3:1 input/output mix.

GPT-5.6 Luna vs Kimi K2.7 Code: which has a bigger context window?

GPT-5.6 Luna: 1,050,000 tokens. Kimi K2.7 Code: 262,144 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-5.6 Luna ≈ $1,000, Kimi K2.7 Code ≈ $3,062.

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