GPT-6.1 Terra → DeepSeek V4 Pro: cost per request on six tasks
DeepSeek V4 Pro costs between 11% less and 29% more than GPT-6.1 Terra per request on six common tasks. It costs no more per result that works if its results work first time at least 89% as often as GPT-6.1 Terra's on translation, and 29% more often on search re-ranking.
List prices per million tokens
| Model | Input | Cached input | Output |
|---|---|---|---|
| GPT-6.1 Terra | $1.00 | $0.05 | $5.00 |
| DeepSeek V4 Pro | $1.32 | $0.044 | $3.96 |
Prices checked 2026-11-12.
Cost per 1,000 requests
| Task | GPT-6.1 Terra | DeepSeek V4 Pro | 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. | $4.50 | $5.15 | 14% more | 15% more often than GPT-6.1 Terra |
| Invoice field extractionInstructions and one invoice's text in; about 15 fields as JSON out. | $3.75 | $4.29 | 14% more | 15% more often than GPT-6.1 Terra |
| Lead scoringScoring rules and one lead's form answers in; a score and a one-line reason out. | $1.70 | $1.98 | 16% more | 17% more often than GPT-6.1 Terra |
| Email reply draftInstructions and the email thread so far in; a reply of about 300 words out. | $3.50 | $3.56 | 2% more | 2% more often than GPT-6.1 Terra |
| TranslationInstructions and about 500 words of text in; the same text in another language out. | $4.90 | $4.36 | 11% less | 89% as often as GPT-6.1 Terra |
| Search re-rankingA search query and 20 result snippets in; the ids of the best five, in order, out. | $4.25 | $5.48 | 29% more | 29% more often than GPT-6.1 Terra |
Token counts are typical sizes, not measurements.
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