Gemini 3.1 Flash Image pricing
Source: openrouter · updated 2026-10-27
Short answer: Gemini 3.1 Flash Image costs $0.500 per million input tokens and $3.00 per million output tokens. That is a 3:1 blended rate of $1.12 per million tokens, ranking it #364 of 704 tracked models by input price.
Price breakdown
| Metric | USD |
|---|---|
| Input, per 1M tokens | $0.500 |
| Output, per 1M tokens | $3.00 |
| Output รท input multiple | 6.00× |
| 3:1 blended, per 1M tokens | $1.12 |
| Context window | 131,072 tokens |
What a typical workload costs
| Monthly volume | Input cost | Output cost | Total | 1M in / 250K out | $0.500 | $0.750 | $1.25 |
|---|---|---|---|---|---|---|---|
| 10M in / 2.5M out | $5.00 | $7.50 | $12.50 | ||||
| 100M in / 25M out | $50.00 | $75.00 | $125 |
Other google models
| Model | Input | Output |
|---|---|---|
| Gemma 4 26 B A4 B It | Free | Free |
| Gemma 4 31 B It | Free | Free |
| Lyria 3 Pro Preview | Free | Free |
| Lyria 3 Clip Preview | Free | Free |
| Gemma 3.4 B It | $0.050 | $0.100 |
Compare against
Cheaper alternatives
Next cheaper option: Kimi K2.5 Fp 4 at $0.500 per 1M input tokens. Next step up: Morph V3 Large at $0.900 per 1M input tokens.