Gemini 3.8 Flash → Grok 4.3: cost per request on six tasks
Grok 4.3 costs between 15% less and 61% more than Gemini 3.8 Flash per request on six common tasks. It costs no more per result that works if its results work first time at least 86% as often as Gemini 3.8 Flash's on translation, and 61% more often on search re-ranking.
List prices per million tokens
| Model | Input | Cached input | Output |
|---|---|---|---|
| Gemini 3.8 Flash | $0.75 | $0.075 | $3.75 |
| Grok 4.3 | $1.25 | $0.20 | $2.50 |
Prices checked 2026-11-12.
Cost per 1,000 requests
| Task | Gemini 3.8 Flash | Grok 4.3 | 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. | $3.38 | $4.50 | 33% more | 34% more often than Gemini 3.8 Flash |
| Invoice field extractionInstructions and one invoice's text in; about 15 fields as JSON out. | $2.81 | $3.75 | 33% more | 34% more often than Gemini 3.8 Flash |
| Lead scoringScoring rules and one lead's form answers in; a score and a one-line reason out. | $1.28 | $1.75 | 37% more | 38% more often than Gemini 3.8 Flash |
| Email reply draftInstructions and the email thread so far in; a reply of about 300 words out. | $2.63 | $2.88 | 10% more | 10% more often than Gemini 3.8 Flash |
| TranslationInstructions and about 500 words of text in; the same text in another language out. | $3.68 | $3.13 | 15% less | 86% as often as Gemini 3.8 Flash |
| Search re-rankingA search query and 20 result snippets in; the ids of the best five, in order, out. | $3.19 | $5.13 | 61% more | 61% more often than Gemini 3.8 Flash |
Token counts are typical sizes, not measurements.
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