Gemini 3.8 Flash vs Gemini 4 Argon: API pricing
As of Oct 14, 2026, Gemini 3.8 Flash costs $0.75 input / $3.75 output per million tokens from Google, and Gemini 4 Argon costs $2.00 / $10.00 from Google. For 10M input and 2M output tokens a month, Gemini 3.8 Flash comes to $15.00 and Gemini 4 Argon to $40.00, so Gemini 3.8 Flash is 63% cheaper than Gemini 4 Argon. On LMArena, Gemini 4 Argon scores higher, 1533 against 1499.
Your monthly cost at the official price
Gemini 3.8 Flash: $15.00cheaper
Gemini 4 Argon: $40.00
| Detail |  Gemini 3.8 Flash | Gemini 4 Argon |
|---|---|---|
| Maker | ||
| Official input / output | $0.75 / $3.75per million tokens | $2.00 / $10.00per million tokens |
| Cached input | $0.075 | $0.10 |
| Cheapest seller | $0.75 / $3.75Google Vertex AI | $2.00 / $10.00Google Gemini |
| Sellers | 3 | 4 |
| Context | 1.05M | 1.05M |
| LMArena overall | 1499 · #8 | 1533 · #1 |
| LMArena coding | 1507 · #17 | 1548 · #1 |
| Features |
Every seller's price: Gemini 3.8 Flash · Gemini 4 Argon
More comparisons
- Claude Opus 5.5 vs Gemini 4 Argon
- Claude Fable 5.1 vs Gemini 4 Argon
- Claude Opus 5 vs Gemini 4 Argon
- Claude Opus 4.6 vs Gemini 4 Argon
- Claude Fable 5 vs Gemini 4 Argon
- Claude Opus 4.7 vs Gemini 4 Argon
- Gemini 4 Argon vs Muse Spark 1.3
- Gemini 4 Argon vs MiMo V2.6 Pro
- Gemini 3.7 Flash vs Gemini 4 Argon
- Gemini 4 Argon vs Muse Spark 1.2
Prices in USD from LiteLLM and models.dev, checked daily; arena scores from LMArena (CC BY 4.0). Confirm on the seller's pricing page before you rely on a number.