OpenAI
OpenAI’s flagship model is GPT‑5.6 Sol, designed for demanding work across coding, knowledge work, research, science, and agentic workflows. GPT‑5.6 Sol Pro is available for the most difficult and long-running tasks; GPT‑5.6 Terra provides a balanced capability, speed, and cost profile, while GPT‑5.6 Luna targets minimal latency and cost-efficient high-volume workloads. The ecosystem’s strength is the ability to choose reasoning effort and a model for the task, while the available context window depends on the selected model and API. Choose OpenAI for code generation and review, analysis of large documents and data, multi-step planning, assistants, multimodal interfaces, and workflow automation.
| Model | Tags | Input / 1M | Output / 1M | Cache / 1M | Context |
|---|---|---|---|---|---|
gpt-5.6-terra
|
- | $1.00 | $6.00 | $0.10 | 1M |