Which is cheaper, GPT-6 Luna Pro or Ministral 8B (latest)?

Neither: both run at $0.40 per million tokens, three parts input to one part output, read on 23 Sept 2026.

Where is each one cheapest?

GPT-6 Luna Pro: nobody goes below the maker's own price with a reason we can point at, so $0.40 is the number to beat. Ministral 8B (latest): nobody goes below the maker's own price with a reason we can point at, so $0.40 is the number to beat.

Can I buy both from one provider?

Yes. 4 providers sell both: NanoGPT, Kilo Gateway, Nous Portal, OpenRouter. The cheapest of them for the two together is NanoGPT.

Which holds more context?

GPT-6 Luna Pro, at 1.1M tokens against 128k.

GPT-6 Luna Pro vs Ministral 8B (latest).

model vs model · prices as of 23 Sept 2026

GPT-6 Luna Pro takes 2 of 5 rounds against Ministral 8B (latest). Both cost $0.40 per million tokens to run.

OpenAIwins 2 rounds

GPT-6 Luna Pro

$0.40/M tokens

OpenAI list price, nothing below it is accounted for · $0.045 per 1,000 pages

1.1M context · tool calling · reads images

Mistral AI

Ministral 8B (latest)

$0.40/M tokens

Mistral AI list price, nothing below it is accounted for · $0.066 per 1,000 pages

128k context · tool calling · open weights

List price in (lower wins)

$0.05/M

$0.10/M

List price out (lower wins)

$0.25/M

$0.10/M

Cheapest we can explain (lower wins)

none below list

Standard price (lower wins)

$0.40/M

Cost per 1,000 pages (lower wins)

$0.045

$0.066

Context

1.1M tokens

128k tokens

Open weights

not stated

yes

Tool calling

yes

Structured output

yes

not stated

Reads images

yes

Reasoning

yes

Released

22 Sept 2026

1 Oct 2024

Providers selling it

Price we measure against

the maker's own

Trains on your prompts (no is better)

no provider to check

Providers selling both · 4

NanoGPT$0.15 / $0.60
Kilo Gateway$0.80 / $0.60
Nous Portal$0.80 / $0.60
OpenRouter$0.80 / $0.60

GPT-6 Luna Pro then Ministral 8B (latest), per million tokens

Go further

open in the compare tool →every price for GPT-6 Luna Pro every price for Ministral 8B (latest)

Add a third or fourth model, or switch the weighting, in the tool.

What moved in the last seven days

Ministral 8B (latest)Cortecs$0.17 / $0.17 $0.18 / $0.187% dearer · 16 Sept 2026
Ministral 8B (latest)Nous Portal$0.12 / $0.12 $0.15 / $0.1525% dearer · 16 Sept 2026

Frequently asked

Which is cheaper, GPT-6 Luna Pro or Ministral 8B (latest)?: Neither: both run at $0.40 per million tokens, three parts input to one part output, read on 23 Sept 2026.
Where is each one cheapest?: GPT-6 Luna Pro: nobody goes below the maker's own price with a reason we can point at, so $0.40 is the number to beat. Ministral 8B (latest): nobody goes below the maker's own price with a reason we can point at, so $0.40 is the number to beat.
Can I buy both from one provider?: Yes. 4 providers sell both: NanoGPT, Kilo Gateway, Nous Portal, OpenRouter. The cheapest of them for the two together is NanoGPT.
Which holds more context?: GPT-6 Luna Pro, at 1.1M tokens against 128k.

Prices exclude tax and are per million tokens, read 23 Sept 2026 from each provider's own catalog. The standard price blends three parts input to one part output; a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.