Gemini 3.1 Pro Preview vs GPT-5.6 Terra: Pricing and Specs
Gemini 3.1 Pro Preview $2 / $12 vs GPT-5.6 Terra $2 / $12 per 1M tokens in / out.
| Gemini 3.1 Pro Preview | GPT-5.6 Terra | |
|---|---|---|
| Maker | OpenAI | |
| Input, per 1M tokens | $2 | $2 |
| Output, per 1M tokens | $12 | $12 |
| Context window | 1,048,576 input tokens google.dev | 1,050,000 tokens openai.com |
| Max output | 65,536 tokens google.dev | 128,000 tokens openai.com |
| Input types | Text, Image, Video, Audio, PDF google.dev | Text, Image openai.com |
| Output types | Text google.dev | Text openai.com |
| Released | Feb 19, 2026 google.com | Not published in the docs we read |
| Price checked | Nov 9, 2026 google.dev | Nov 9, 2026 openai.com |
| Tracked changes | 0 | 0 |
Facts side by side from each maker's own pages. No score and no verdict.
Get an email when Gemini 3.1 Pro Preview or GPT-5.6 Terra changes its price
Questions
Which is cheaper, Gemini 3.1 Pro Preview or GPT-5.6 Terra
They list the same price: $2 per 1M input tokens.
What do 1M input and 1M output tokens cost on each
Gemini 3.1 Pro Preview: $14. GPT-5.6 Terra: $14. Listed standard prices, before caching or batch discounts.
What context window does each have
Gemini 3.1 Pro Preview: 1,048,576 input tokens. GPT-5.6 Terra: 1,050,000 tokens. From each maker's docs.
Who makes Gemini 3.1 Pro Preview and GPT-5.6 Terra
Gemini 3.1 Pro Preview is made by Google. GPT-5.6 Terra is made by OpenAI.