Gemini 3.1 Pro → GPT-4o: cost per request on six tasks
GPT-4o costs between 10% less and 22% more than Gemini 3.1 Pro per request on six common tasks. It costs no more per result that works if its results work first time at least 90% as often as Gemini 3.1 Pro's on translation, and 23% more often on search re-ranking.
List prices per million tokens
| Model | Input | Cached input | Output |
|---|---|---|---|
| Gemini 3.1 Pro | $2.00 | $0.20 | $12.00 |
| GPT-4o | $2.50 | $1.25 | $10.00 |
Prices checked 2026-11-12.
Cost per 1,000 requests
| Task | Gemini 3.1 Pro | GPT-4o | Change | Cheaper per result that works if it works first time at least |
|---|---|---|---|---|
| Support bot answerInstructions, three help-centre passages and the customer's question in; a short answer out. | $9.60 | $10.50 | 9% more | 10% more often than Gemini 3.1 Pro |
| Invoice field extractionInstructions and one invoice's text in; about 15 fields as JSON out. | $8.00 | $8.75 | 9% more | 10% more often than Gemini 3.1 Pro |
| Lead scoringScoring rules and one lead's form answers in; a score and a one-line reason out. | $3.60 | $4.00 | 11% more | 12% more often than Gemini 3.1 Pro |
| Email reply draftInstructions and the email thread so far in; a reply of about 300 words out. | $7.80 | $7.75 | 1% less | 100% as often as Gemini 3.1 Pro |
| TranslationInstructions and about 500 words of text in; the same text in another language out. | $11.40 | $10.25 | 10% less | 90% as often as Gemini 3.1 Pro |
| Search re-rankingA search query and 20 result snippets in; the ids of the best five, in order, out. | $8.60 | $10.50 | 22% more | 23% more often than Gemini 3.1 Pro |
Token counts are typical sizes, not measurements.
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