GPT-6 Luna Pro
OpenAI · released Sep 22, 2026
- Type
- Closed
- Input
- $0.10
- Output
- $0.50
- Cached
- $0.010
List price · per 1M tokens · OpenAI at 1.1M context · source ↗
Our take
Written Sep 30, 2026GPT-6 Luna Pro is a hosted-only model from OpenAI: we list no download for it, so using it means choosing a host. Nothing here measures how good its answers are, so treat it as a candidate to trial on work you can check yourself.
Reach for it on long-document and file-heavy work, where you want to send a lot of material in one request rather than splitting it up first. Because no benchmark evidence is supplied, it suits tasks where you can judge the output yourself. Skip it if you need measured coding, reasoning or chat quality before committing, or if you meant to run the model on your own machine.
The case for it
- Long documents go in without being split up first, though reliable recall across all of it is unverified in our data.
- Seven hosted offers across OpenAI, Azure and OpenRouter, so you can move the workload if one host's rate stops suiting you.
The case against it
- No benchmark scores are supplied, so coding, reasoning and chat quality are unverified in our data and need a trial on work you can check yourself.
- We list no download for it, so a host is the only route and you cannot run it yourself.
How good is it?
We hold no score for this model.
So there is no figure here for everyday use, coding, agent work or writing. That is a gap in our data, not a low score.
Where to rent it
Prices checked 4 hours ago — each listing carries its own date.
OpenAI, through OpenRouter
The lab is the cheapest at this context. The strip above and this offer are the same one, compared at 1.1M of context. One cheaper row below is outside that comparison: a non-standard pricing tier.
- per 1M tokens
- $0.10 in / $0.50 out
- Context served
- 1.1M
- Throughput
- ~108 tok/s
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| OpenAIflex tierThrough OpenRouter | $0.050 / $0.25checked 4 hours ago | 1.1M128K max reply | 56 tok/s | No | Yesunknown period | Unknown |
| Microsoft Azure AIThrough OpenRouter | $0.10 / $0.50checked 4 hours ago | 1.1M128K max reply | 81 tok/s | No | No | Confirmed |
| OpenRouterOpenRouter's own listing | $0.10 / $0.50checked 4 hours ago | 1.1M | not measured | Unknown | Unknown | Unknown |
| OpenAIThrough OpenRouter | $0.10 / $0.50checked 4 hours ago | 1.1M128K max reply | 108 tok/s | No | Yesunknown period | Unknown |
| Microsoft Azure AIeuThrough OpenRouter | $0.11 / $0.55checked 4 hours ago | 1.1M128K max reply | 153 tok/s | No | No | Confirmed |
| Microsoft Azure AIusThrough OpenRouter | $0.11 / $0.55checked 4 hours ago | 1.1M128K max reply | 29 tok/s | No | No | Confirmed |
| OpenAIfast tierThrough OpenRouter | $0.20 / $1.00checked 4 hours ago | 1.1M128K max reply | 136 tok/s | No | Yesunknown period | Unknown |
Microsoft Azure AI
OpenRouterAcross the 7 listings we hold: 6 say they do not train on prompts, 0 say they do and 1 does not say. 3 appear in the zero-retention registry we check; the rest are unknown to us.
What each host's API supports
From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.
| Provider | Tool calling | JSON output | Strict schema |
|---|---|---|---|
| OpenAIflexThrough OpenRouter | ✓ | ✓ | ✓ |
| Microsoft Azure AIThrough OpenRouter | ✓ | ✓ | ✓ |
| OpenRouterOpenRouter's own listing | ✓ | ✓ | ✓ |
| OpenAIThrough OpenRouter | ✓ | ✓ | ✓ |
| Microsoft Azure AIeuThrough OpenRouter | ✓ | ✓ | ✓ |
| Microsoft Azure AIusThrough OpenRouter | ✓ | ✓ | ✓ |
| OpenAIfastThrough OpenRouter | ✓ | ✓ | ✓ |
Tool calling: 7 of 7 listings say yes. JSON output: 7 of 7 listings say yes. Strict schema: 7 of 7 listings say yes.
Models people weigh against GPT-6 Luna Pro
When we formed this view
Recent changes
What moved
first indexed by our pipelineEach date is the day we first saw the change, or the day the maker announced it.
What we do not know about this model yet
- No independent board has scored it, so we hold no quality figures at all.
- Nothing we hold says whether an endpoint streams, so we do not show it either way.
- 1 of 7 listings does not say whether it trains on prompts.
- We hold no batch or off-peak rate for any of its listings.
Licence and identifiers
What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.
Licence
We hold no licence record for this model, and no record of published weights either — so we can neither summarise its terms nor point you at the weights.
Identifiers
- Takes in, gives back
- Text, images and documents in, text out
- Catalogue slug
- openai-gpt-6-luna-pro