Rate
Gemini 3.8 Flash vs Grok 4.7: price
Gemini 3.8 Flash is 2.0× cheaper than Grok 4.7 for a typical chat workload (1,500 tokens in, 500 out).
| Item | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| Input per 1M tokens | $0.75 | $2.00 |
| Output per 1M tokens | $3.75 | $6.00 |
| Cached input per 1M | $0.075 | – |
| 1,000 chat messages1,500 tokens in, 500 out each | $3.00 | $6.00 |
| Summarize a 50-page PDF30,000 tokens in, 1,000 out | $0.026 | $0.066 |
| One coding-agent task60,000 tokens in, 4,000 out, no caching | $0.06 | $0.144 |
Gemini 3.8 Flash: Promo price through Dec 31, 2026; $1.50 in / $7.50 out from Jan 1, 2027.
List prices checked September 28, 2026. Price is half the story: see how people rate each one today.
Gemini 3.8 Flash vs Grok 4.7 in numbers
Output, usually the bigger part of the bill, costs $3.75 on Gemini 3.8 Flash and $6.00 on Grok 4.7, so Gemini 3.8 Flash is 1.6× cheaper there. Input costs $0.75 versus $2.00 per million tokens. For a coding-agent task (60,000 tokens in, 4,000 out) that is $0.06 on Gemini 3.8 Flash and $0.144 on Grok 4.7. Gemini 3.8 Flash accepts 1.05M tokens of context and Grok 4.7 500K tokens. Gemini 3.8 Flash came out on September 2, 2026 and Grok 4.7 on September 21, 2026.
Gemini 3.8 Flash is made by Google; Grok 4.7 by xAI. Estimate your own bill for both in the cost calculator.
Which one feels dumber today?
- Gemini 3.8 FlashGoogle
–no votes yet - Grok 4.7xAI–no votes yet
Frequently asked questions
Is Gemini 3.8 Flash or Grok 4.7 cheaper?
Gemini 3.8 Flash is 2.0× cheaper than Grok 4.7 for a typical chat workload (1,500 tokens in, 500 out). Output, usually the bigger part of the bill, costs $3.75 on Gemini 3.8 Flash and $6.00 on Grok 4.7, so Gemini 3.8 Flash is 1.6× cheaper there.
Which is better, Gemini 3.8 Flash or Grok 4.7?
It depends on the task, and price is only part of it. Check how people rate each one today on the Gemini 3.8 Flash and Grok 4.7 pages, and read what users report in Discussions.