GPT-6 Luna: API pricing, providers and specs
GPT-6 Luna is a text model by OpenAI. 28 providers serve it, from $0.40 to $0.603 /1M; the lowest price is at APIMart.
How GPT-6 Luna compares
Against the 737 text models on the site priced the same way.
- Cheap for its class: at $0.40 /1M, its lowest price undercuts 71% of comparable models (median $1.10).
- Its 1.05M-token context window is larger than 95% of them (median 262K), about 1580 pages of text.
- On LMArena's WebDev board it ranks #29 of the 64 comparable models scored there.
- 28 providers serve it; 95% of comparable models have fewer.
GPT-6 Luna prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
| APIMart | $0.08/1M | $0.40/1M | — | — |
 CometAPI | $0.08/1M | From$0.40/1M | — | — |
 Kenari | $0.097/1M | $0.469/1M | $0.01/1M | — |
| OpenAIOfficial | $0.10/1M | From$0.50/1M | $0.01/1M | — |
 CrossModel | $0.10/1M | From$0.50/1M | $0.01/1M | — |
 Requesty | $0.10/1M | From$0.50/1M | $0.01/1M | 1.05M |
 Ofox | $0.10/1M | $0.50/1M | $0.01/1M | 1.05M |
 Venice AI | $0.10/1M | $0.50/1M | $0.01/1M | — |
 Boundless | $0.10/1M | $0.50/1M | $0.01/1M | — |
| Vercel AI Gateway | $0.10/1M | From$0.50/1M | $0.01/1M | 1.05M |
 NEAR AI Cloud | $0.10/1M | $0.50/1M | $0.01/1M | 1.05M |
 Prime Inference | $0.10/1M | $0.50/1M | — | — |
 AIHubMix | $0.10/1M | From$0.50/1M | $0.01/1M | 1.05M |
| AI/ML API | $0.10/1M | $0.50/1M | $0.01/1M | — |
| OpenRouter | $0.10/1M | From$0.50/1M | $0.01/1M | 1.05M |
| DevPass (LLM Gateway) | $0.10/1M | From$0.50/1M | $0.01/1M | — |
 Perplexity | $0.10/1M | From$0.50/1M | $0.01/1M | — |
 APIYI | $0.10/1M | $0.50/1M | — | — |
 LaoZhang API | $0.10/1M | $0.50/1M | — | — |
| Atlas Cloud | $0.10/1M | $0.50/1M | $0.01/1M | — |
| ZenMux | $0.10/1M | $0.50/1M | $0.01/1M | 1.05M |
 Azure | $0.10/1M | From$0.50/1M | $0.01/1M | — |
 OrcaRouter | $0.10/1M | $0.50/1M | $0.01/1M | 1.05M |
 FastRouter | $0.10/1M | From$0.50/1M | $0.01/1M | 400K |
 Jiekou.AI | $0.10/1M | $0.50/1M | $0.01/1M | — |
 Impossibl | $0.10/1M | From$0.50/1M | $0.01/1M | — |
 Opper | $0.10/1M | $0.50/1M | $0.01/1M | — |
 Cortecs | $0.121/1M | $0.603/1M | $0.012/1M | — |
- APIMart$0.40
- CometAPIFrom$0.40
- Kenari$0.469
- Ofox$0.50
- Venice AI$0.50
- Boundless$0.50
- NEAR AI Cloud$0.50
- Prime Inference$0.50
- AI/ML API$0.50
- APIYI$0.50
- LaoZhang API$0.50
- Atlas Cloud$0.50
Specs
- Type
- Text
- Maker
- OpenAI
- Inputs
- Image, Text
- Outputs
- Text
- Context
- 1.05M≈ 1580 pages of text
- Max output
- 128K
- Capabilities
- Prompt caching, JSON, Reasoning, Tool calling, Vision
- Released
- Sep 22, 2026
- License
- proprietary
- Open weights
- No, API only
- Arena score
- 1578WebDev
- Monthly searches
- 117K
Alternatives to GPT-6 Luna
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| GPT-6 Lunathis model | $0.40/1M | 1.05M | 1578 | 28 |
 GLM-5.3 | $1.10/1M | 1.05M | 1623 | 49 |
| GLM-5.3-Flash | $0.20/1M | 1.05M | 1608 | 45 |
 Qwen3.8 27B | $0.50/1M | 262K | 1591 | 33 |
| Sonar | $1/1M | 127K | — | 9 |
| Claude Haiku 5.5 | $0.30/1M | 1M | 1585 | 27 |
 MiMo-V2.6-Pro | $0.696/1M | 1.05M | 1625 | 21 |
| Qwen3.8 Flash Next | $0.376/1M | 262K | 1628 | 5 |
 DeepSeek V4 Flash | $0.17/1M | 1.05M | — | 26 |
More from OpenAI
GPT-6 Luna FAQ
APIMart, at $0.40 /1M. 28 providers serve GPT-6 Luna; the table above lists every one with its price.
GPT-6 Luna reads up to 1.05M tokens per request and writes up to 128K.
No. GPT-6 Luna is only available through an API; OpenAI does not publish its weights.
28 API providers serve GPT-6 Luna. Compare their prices above, or open a provider to see everything it offers.
Can't find what you're looking for? Contact us