GPT-4.1 Nano vs GPT-6 Luna

Price, context window & benchmark comparison

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GPT-4.1 Nano

OpenAI
$0.10 / $0.40
Input / Output · per 1M tokens
VS
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GPT-6 Luna

OpenAI
$0.10 / $0.50
Input / Output · per 1M tokens
Compare different models
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Verdict: GPT-4.1 Nano is 13% cheaper than GPT-6 Luna on a typical 3:1 input/output mix. GPT-6 Luna has the larger context window (1.1M vs 1M).
GPT-4.1 NanoGPT-6 Luna
Input price / 1M$0.10$0.10
Output price / 1M$0.40$0.50
Blended price (3:1)$0.18$0.20
Cached input / 1M$0.025$0.01
Context window1M1.1M
Max output33K128K
Intelligence index—37.3
Coding index11.1—
Providers—7
Best provider uptime (30m)—100.0%
Vision inputYesYes
ReasoningNoYes
Tool callingYesYes
Released2025-04-142026-09-22
Retirement——

Cost calculator

FAQ

Which is cheaper, GPT-4.1 Nano or GPT-6 Luna?

GPT-4.1 Nano is 13% cheaper than GPT-6 Luna on a typical 3:1 input/output mix.

GPT-4.1 Nano vs GPT-6 Luna: which has a bigger context window?

GPT-4.1 Nano: 1,047,576 tokens. GPT-6 Luna: 1,050,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-4.1 Nano ≈ $400.00, GPT-6 Luna ≈ $450.00.

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