Versions side by side — rows that differ across these models are highlighted.
| API string | gemini-3.1-pro | gpt-5.5 | — |
|---|
| Note | Current flagship; 2M-token context window (largest production context of any model family), strong coding/reasoning/multimodal. GA February 2026. | Current flagship general-purpose model; strong coding, reasoning, writing, and agentic tasks. Tiered pricing above a context threshold. | First Gemini 3 model, released in preview; introduced improved agentic capabilities. Superseded by Gemini 3.1 Pro GA. |
|---|