Gemini 3.8 Flash vs Gemini 4 Carbon: API pricing
As of Nov 10, 2026, Gemini 3.8 Flash costs $0.75 input / $3.75 output per million tokens from Google, and Gemini 4 Carbon 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 Carbon to $40.00, so Gemini 3.8 Flash is 63% cheaper than Gemini 4 Carbon. On LMArena, Gemini 4 Carbon scores higher, 1538 against 1500.
| Detail | Gemini 3.8 Flash | Gemini 4 Carbon |
|---|---|---|
| Est. per month | $15.00official priceCheaper | $40.00official price |
| Maker | ||
| Official input / output | $0.75 / $3.75per million tokens | $2.00 / $10.00per million tokens |
| Cached input | $0.075 | $0.10 |
| Cheapest provider | $0.75 / $3.75Google Gemini | $2.00 / $10.00Google Gemini |
| Providers | 10 | 4 |
| Context | 1.05M | 1.05M |
| LMArena overall | 1500 · #9 | 1538 · #1 |
| LMArena coding | 1511 · #14 | 1563 · #1 |
| Features |
Every provider's price: Gemini 3.8 Flash · Gemini 4 Carbon
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