Gemini 2.5 Pro vs GPT-6.1 Sol
Both have similar output pricing, while GPT-6.1 Sol offers a larger context window. Choose Gemini 2.5 Pro or GPT-6.1 Sol based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Gemini 2.5 Pro | GPT-6.1 Sol |
|---|---|---|
| Provider | OpenAI | |
| Input / 1M tokens | $1.25 | $2.00 |
| Output / 1M tokens | $10.00 | $10.00 |
| Context window | 1M | 1.1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Jun 2025 | — |
| LMArena (Chatbot Arena) Elo score | 1458 | 1448 |
| LMArena WebDev Elo score | 1226 | 1760 |
| LMArena Vision Elo score | 1263 | 1288 |
| GPQA Diamond score | — | 95.4 |
| Epoch Capabilities Index score | — | 166 |
FAQ
Is Gemini 2.5 Pro or GPT-6.1 Sol cheaper?
Gemini 2.5 Pro and GPT-6.1 Sol have comparable output pricing.
Which has the larger context window, Gemini 2.5 Pro or GPT-6.1 Sol?
GPT-6.1 Sol has the larger context window (1.1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.