GPT-6.1 Sol vs Gemini 3.1 Pro
A plain comparison: what they do, what they cost and which to pick for your task.
In short
Close in price. GPT-6.1 Sol is more versatile and better at answering questions; Gemini 3.1 Pro is handier for large documents, spreadsheets and summaries.
GPT-6.1 Sol is cheaper: an answer costs 1.2 times less than with Gemini 3.1 Pro.
Side by side
| GPT-6.1 Sol | Gemini 3.1 Pro | |
|---|---|---|
| Maker | OpenAI, USA | Google, USA |
| Type | everyday | everyday |
| Good for | ChatGPT’s everyday model. Answers any question, writes text and code. | Gemini Pro: works through long texts, spreadsheets and documents. |
| Official, $ per 1M | $2 / $10 | $2 / $12 |
| Freepay rate | ×1 / ×5 | ×1 / ×6 |
| Maker’s subscription | ChatGPT Plus costs $20 a month. | The paid Google AI plan costs about $20 a month. |
Prices: your text / answer. The “Freepay rate” shows how many balance tokens a model spends per token of its own; Claude Sonnet 5.5 is ×1.
Which to pick for the task
| Task | Better |
|---|---|
| Questions and study | GPT-6.1 Sol |
| Large documents | Gemini 3.1 Pro |
| Summaries and notes | Gemini 3.1 Pro |
| Writing | GPT-6.1 Sol |
The best way to choose is to ask both models the same question. On Freepay you do it in one chat, switching the model in the input field.
About GPT-6.1 Sol
ChatGPT’s everyday model. Answers any question, writes text and code. GPT models are made by OpenAI and power ChatGPT, the best-known AI chat. It answers any question, does maths, explains and helps with study. More about GPT-6.1 Sol.
About Gemini 3.1 Pro
Gemini Pro: works through long texts, spreadsheets and documents. Gemini is Google’s AI. It answers fast, works well with large documents and knows a lot of facts. More about Gemini 3.1 Pro.
Frequently asked questions
Which is better, GPT-6.1 Sol or Gemini 3.1 Pro?
Close in price. GPT-6.1 Sol is more versatile and better at answering questions; Gemini 3.1 Pro is handier for large documents, spreadsheets and summaries.
Which is cheaper, GPT-6.1 Sol or Gemini 3.1 Pro?
GPT-6.1 Sol is cheaper: an answer costs 1.2 times less than with Gemini 3.1 Pro. Official prices per 1M tokens: GPT-6.1 Sol $2 / $10, Gemini 3.1 Pro $2 / $12. On Freepay both are 10x cheaper.
Can I use GPT-6.1 Sol and Gemini 3.1 Pro in one place?
Yes. On Freepay both models are in one chat, you switch them in the input field, and the balance is shared.
Do I need two subscriptions for GPT-6.1 Sol and Gemini 3.1 Pro?
No. ChatGPT needs an account, the free plan limits the best models, and ChatGPT Plus is a monthly subscription. Gemini needs a Google account, and the stronger models come with a paid Google AI plan. On Freepay one key covers both, with no subscription.