GPT-6 Luna Pro vs Mistral Large 4

Price, context window & benchmark comparison

OpenAI

GPT-6 Luna Pro

OpenAI
$0.10 / $0.50
Input / Output · per 1M tokens
VS
Mistral AI

Mistral Large 4

Mistral AI
$1.36 / $4.18
Input / Output · per 1M tokens
Compare different models
OpenAI
Mistral AI
Verdict: GPT-6 Luna Pro is 10.3× cheaper than Mistral Large 4 on a typical 3:1 input/output mix. GPT-6 Luna Pro has the larger context window (1.1M vs 1M).
GPT-6 Luna ProMistral Large 4
Input price / 1M$0.10$1.36
Output price / 1M$0.50$4.18
Blended price (3:1)$0.20$2.06
Cached input / 1M$0.01$0.14
Context window1.1M1M
Max output128K262K
Intelligence index——
Coding index——
Providers6—
Best provider uptime (30m)100.0%—
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-222026-10-06
Retirement——

Cost calculator

FAQ

Which is cheaper, GPT-6 Luna Pro or Mistral Large 4?

GPT-6 Luna Pro is 10.3× cheaper than Mistral Large 4 on a typical 3:1 input/output mix.

GPT-6 Luna Pro vs Mistral Large 4: which has a bigger context window?

GPT-6 Luna Pro: 1,050,000 tokens. Mistral Large 4: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-6 Luna Pro ≈ $450.00, Mistral Large 4 ≈ $4,810.

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