OpenAI: GPT-6 Luna (batch)
The OpenAI GPT-6 Luna is a batch processing AI model that can handle various input modalities, including text, images, and files. It supports reasoning capabilities and has access to tools, but does not provide structured output. For users seeking an AI model with a wide range of supported input types, the OpenAI GPT-6 Luna may be worth considering. Its price point is $0.05 per million input tokens and $0.25 per million output tokens. While its benchmark score of 62.2 across one independent benchmark suggests it performs well in at least one evaluation metric, more comprehensive testing data would provide a clearer picture of its capabilities.
Benchmark results
Independent, published benchmarks. Blended score 62.2 across 1 benchmark, last refreshed 2026-09-27. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 61.5 |
- Model ID
- openai/gpt-6-luna:batch
- Vendor
- openai
- Released
- September 2026
- Tokenizer
- GPT
- Input Modalities
- file, image, text
- Output Modalities
- text
- Max Output
- 128,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- yes
What it costs in practice
Computed from the current $0.05/M input and $0.25/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | under $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.04 |
| A month of a busy support chatbot | 5M in / 2M out | $0.75 |
Strong choice for
Category rankings
Where OpenAI: GPT-6 Luna (batch) places across the 19 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #3 | Real-Time ChatLatency · of 25 ranked | 118 |
| #10 | Self-Hosted / LocalCost · of 25 ranked | 117 |
| #11 | Image CaptioningVision · of 25 ranked | 120 |
| #12 | Short-Form SummarizationWriting · of 25 ranked | 127 |
| #12 | Email DraftingWriting · of 25 ranked | 123 |
| #12 | Language LearningEducation · of 25 ranked | 123 |
| #12 | Chat CompanionPersonal · of 25 ranked | 127 |
| #13 | Code CompletionCode · of 25 ranked | 133 |
| #16 | Trivia & General KnowledgePersonal · of 25 ranked | 117 |
| #18 | Social Media PostsWriting · of 25 ranked | 119 |
| #18 | Voice Assistant BackendVoice · of 25 ranked | 123 |
| #18 | Cheap Bulk InferenceCost · of 25 ranked | 137 |
| #19 | Bulk Data LabelingData · of 25 ranked | 129 |
| #19 | Sales / Cold EmailBusiness · of 25 ranked | 119 |
| #19 | Job Application DraftingBusiness · of 25 ranked | 119 |
| #19 | Journaling HelperPersonal · of 25 ranked | 119 |
| #19 | Recipe GenerationPersonal · of 25 ranked | 119 |
| #20 | Dataset AnnotationResearch · of 25 ranked | 133 |
| #25 | JSON ExtractionData · of 25 ranked | 131 |
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Quick answers
- How much does OpenAI: GPT-6 Luna (batch) cost?
- $0.05 per million input tokens and $0.25 per million output tokens.
- What is OpenAI: GPT-6 Luna (batch)'s context window?
- 1,050,000 tokens, roughly 1,575 pages of text in a single request.
- Does OpenAI: GPT-6 Luna (batch) support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: GPT-6 Luna (batch) process images?
- Yes, it accepts image input.