Rate
Gemini 3.8 Flash vs Gemini 4 Argon: price
Gemini 3.8 Flash is 2.7× cheaper than Gemini 4 Argon for a typical chat (1,500 tokens in, 500 out).
| Item | Gemini 3.8 Flash | Gemini 4 Argon |
|---|---|---|
| Input per 1M tokens | $0.75 | $2.00 |
| Output per 1M tokens | $3.75 | $10.00 |
| Cached input per 1M | $0.075 | $0.10 |
| 1,000 chat messages1,500 tokens in, 500 out each | $3.00 | $8.00 |
| Summarize a 50-page PDF30,000 tokens in, 1,000 out | $0.026 | $0.07 |
| One coding-agent task60,000 tokens in, 4,000 out, no caching | $0.06 | $0.16 |
Gemini 3.8 Flash: Promo price through Dec 31, 2026; $1.50 in / $7.50 out from Jan 1, 2027.
Gemini 4 Argon: Introductory price through Nov 30, 2026; $4 in / $20 out (cache $0.20) from Dec 1, 2026. Context limit is shared between input and output.
List prices checked November 5, 2026. Price is half the story: see how people rate each one today.
Gemini 3.8 Flash vs Gemini 4 Argon in numbers
Output, usually the bigger part of the bill, costs $3.75 on Gemini 3.8 Flash and $10.00 on Gemini 4 Argon, so Gemini 3.8 Flash is 2.7× 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 $0.16 on Gemini 4 Argon. Both accept up to 1.05M tokens of context. Gemini 3.8 Flash came out on September 2, 2026 and Gemini 4 Argon on October 13, 2026.
Both are Google models. Estimate your own bill for both in the cost calculator.
Which one feels dumber today?
- Gemini 3.8 FlashGoogle
–no votes yet - Gemini 4 ArgonGoogle–no votes yet
Frequently asked questions
Is Gemini 3.8 Flash or Gemini 4 Argon cheaper?
Gemini 3.8 Flash is 2.7× cheaper than Gemini 4 Argon for a typical chat (1,500 tokens in, 500 out). Output, usually the bigger part of the bill, costs $3.75 on Gemini 3.8 Flash and $10.00 on Gemini 4 Argon, so Gemini 3.8 Flash is 2.7× cheaper there.
Which is better, Gemini 3.8 Flash or Gemini 4 Argon?
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 Gemini 4 Argon pages, and read what users report in Discussions.