AI model comparison
Open Cost Calculator
Compare AI models side by side.
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 Terra OpenAI |
|---|---|
| Summary | A balanced GPT-5.6 model designed to deliver strong quality at a lower cost than Sol. |
| Best for | Production assistants, coding, analysis, agents, business workflows |
| Watch out for | Less capable than Sol on the hardest tasks; more expensive than Luna. |
| Family | GPT-5.6 |
| Type | Reasoning LLM |
| Status | GA |
| Released | 2026-07-09 |
| Context window | 1.1M |
| Max output | 128K |
| Inputs | Text, image |
| Outputs | Text |
| Reasoning | Yes — configurable |
| Tool calling | Yes |
| Structured output | Yes |
| API available | Yes |
| Open weights | No |
| Self-hostable | No |
| License | Proprietary |
| Price | $2.50 input / $15 output per 1M tokens |