GPT-6 Luna Pro vs GPT-6 Sol

Price, context window & benchmark comparison

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GPT-6 Luna Pro

OpenAI
$0.10 / $0.50
Input / Output · per 1M tokens
VS
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GPT-6 Sol

OpenAI
$2.00 / $10.00
Input / Output · per 1M tokens
Compare different models
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Verdict: GPT-6 Luna Pro is 20.0× cheaper than GPT-6 Sol on a typical 3:1 input/output mix.
GPT-6 Luna ProGPT-6 Sol
Input price / 1M$0.10$2.00
Output price / 1M$0.50$10.00
Blended price (3:1)$0.20$4.00
Cached input / 1M$0.01$0.20
Context window1.1M1.1M
Max output128K128K
Intelligence index47.5
Coding index
Providers67
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-222026-09-22
Retirement

Cost calculator

FAQ

Which is cheaper, GPT-6 Luna Pro or GPT-6 Sol?

GPT-6 Luna Pro is 20.0× cheaper than GPT-6 Sol on a typical 3:1 input/output mix.

GPT-6 Luna Pro vs GPT-6 Sol: which has a bigger context window?

GPT-6 Luna Pro: 1,050,000 tokens. GPT-6 Sol: 1,050,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-6 Luna Pro ≈ $450.00, GPT-6 Sol ≈ $9,000.

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