| Gemini 3.1 Pro Preview | Gemma 4 31B | |
|---|---|---|
| Input, per 1M tokens | $2.00 | $0.09 |
| Output, per 1M tokens | $12.00 | $0.34 |
| Context window | 1.05M | 262K |
| Classification or routing (600 tokens in, 10 out), per 1,000 | $1.32 | $0.0574 |
| Chat reply (2,000 in, 400 out), per 1,000 | $8.80 | $0.316 |
| Retrieval-augmented answer (8,000 in, 500 out), per 1,000 | $22.00 | $0.89 |
| Confidence signal | no | yes |
| Tool calling | yes | yes |
| BANKING77, correct of 400 | not measured | 304 |
Which one should carry your traffic?
If Gemma 4 31B answers your requests as well as Gemini 3.1 Pro Preview, moving that traffic saves 96% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Gemma 4 31B exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Gemini 3.1 Pro Preview.
Gemini 3.1 Pro Preview profile · Gemma 4 31B profile · Measure it on your traffic