OpenAI: GPT Luna Latest
The OpenAI: GPT Luna Latest is an AI model that can process multiple input types, including text, images, and files. It has a high context length of 1,050,000 tokens, allowing it to understand complex and nuanced information. The model supports tools, reasoning capabilities, and output structured in a specific format, but the exact nature of this structure is not specified. When considering which AI model to use, those on a budget may want to shortlist the OpenAI: GPT Luna Latest due to its competitive pricing. With $0.1 per million input tokens and $0.5 per million output tokens, it can be an attractive option for users with medium to high query volumes. However, as of now, there is no independent benchmark coverage available to compare its performance directly against other models.
- Model ID
- ~openai/gpt-luna-latest
- Vendor
- ~openai
- Released
- September 2026
- Tokenizer
- Router
- 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 $0.10/M input and $0.50/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 | $0.08 |
| A month of a busy support chatbot | 5M in / 2M out | $1.50 |
Price & spec history
Tracked daily by PicksByModel since 2026-09-12.
| Date | Input /M | Output /M | Context |
|---|---|---|---|
| 2026-09-23 | $0.10 | $0.50 | 1,050,000 |
| 2026-09-12 | $0.20 | $1.20 | 1,050,000 |
Category rankings
Where OpenAI: GPT Luna Latest places across the 2 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #20 | Social Media PostsWriting · of 25 ranked | 119 |
| #20 | Voice Assistant BackendVoice · of 25 ranked | 123 |
Similar models
Quick answers
- How much does OpenAI: GPT Luna Latest cost?
- $0.10 per million input tokens and $0.50 per million output tokens.
- What is OpenAI: GPT Luna Latest's context window?
- 1,050,000 tokens, roughly 1,575 pages of text in a single request.
- Does OpenAI: GPT Luna Latest support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: GPT Luna Latest process images?
- Yes, it accepts image input.