Decision snapshot
Where this family fits
- Suitable for
- Complex professional work, software development, multimodal analysis, and agent workflows using the OpenAI API or ChatGPT.
- Access
- Hosted API · Product access
- Capabilities
- General & Reasoning · Coding · Vision & Multimodal · Agents & Tool Use
- Weights
- The listed GPT-5.6 releases are hosted models; their model pages do not offer downloadable weights.
Decision boundary
The GPT name spans several capability and cost tiers. Choose an exact model ID, reasoning effort, and tool set against a representative task instead of treating the family as one model.
Selected current releases
Exact names and model IDs
This is a maintained selection from official sources, not a complete catalog. Provider status labels are preserved instead of converted into a Richbay score.
| Release | Provider status | Access and modality | Context | Weights / license |
|---|---|---|---|---|
GPT-5.6 Sol ↗gpt-5.6-sol | Current flagship | OpenAI APIText + image input → text | 1.05M tokens | Hosted service · no weights listed |
GPT-5.6 Terra ↗gpt-5.6-terra | Current | OpenAI APIText + image input → text | 1.05M tokens | Hosted service · no weights listed |
GPT-5.6 Luna ↗gpt-5.6-luna | Current | OpenAI APIText + image input → text | 1.05M tokens | Hosted service · no weights listed |
Related Richbay evidence