AI model comparison
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Pick up to four models and compare the trade-offs that matter: context, price, API access, weights, inputs, outputs, and use cases.
| Attribute | GPT-5.6 Luna OpenAI |
|---|---|
| Summary | The fast, lower-cost GPT-5.6 option for high-volume applications and responsive user experiences. |
| Best for | Chat, classification, extraction, customer support, high-volume APIs |
| Watch out for | Lower ceiling on complex reasoning and advanced coding than Terra or Sol. |
| Family | GPT-5.6 |
| Type | General LLM |
| Status | GA |
| Released | 2026-07-09 |
| Context window | 1.1M |
| Max output | 128K |
| Inputs | Text, image |
| Outputs | Text |
| Reasoning | Yes |
| Tool calling | Yes |
| Structured output | Yes |
| API available | Yes |
| Open weights | No |
| Self-hostable | No |
| License | Proprietary |
| Price | $1 input / $6 output per 1M tokens |