GPT-6 Luna Pro vs Mistral Medium 3

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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Mistral Medium 3

Mistral AI
$0.40 / $2.00
Input / Output · per 1M tokens
Compare different models
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Verdict: GPT-6 Luna Pro is 4.0× cheaper than Mistral Medium 3 on a typical 3:1 input/output mix. GPT-6 Luna Pro has the larger context window (1.1M vs 131K).
GPT-6 Luna ProMistral Medium 3
Input price / 1M$0.10$0.40
Output price / 1M$0.50$2.00
Blended price (3:1)$0.20$0.80
Cached input / 1M$0.01$0.04
Context window1.1M131K
Max output128K105K
Intelligence index——
Coding index——
Providers6—
Best provider uptime (30m)100.0%—
Vision inputYesYes
ReasoningYesNo
Tool callingYesYes
Released2026-09-222025-05-07
Retirement——

Cost calculator

FAQ

Which is cheaper, GPT-6 Luna Pro or Mistral Medium 3?

GPT-6 Luna Pro is 4.0× cheaper than Mistral Medium 3 on a typical 3:1 input/output mix.

GPT-6 Luna Pro vs Mistral Medium 3: which has a bigger context window?

GPT-6 Luna Pro: 1,050,000 tokens. Mistral Medium 3: 131,072 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-6 Luna Pro ≈ $450.00, Mistral Medium 3 ≈ $1,800.

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