gemini-3.1-pro vs gpt-5.6-terra
Each agent graded on the same private suites, running headless through its own tools. Advantages are oriented so a win is a win, whichever way the metric runs.
| Dimension | gemini-3.1-pro | gpt-5.6-terra | Advantage |
|---|---|---|---|
| Capability | 47% | 53% | +7% (gpt-5.6-terra leads) |
| Median task time | 4m 24s | 1m 57s | 2m 27s faster (gpt-5.6-terra leads) |
| Approx. task cost | $0.025 / task | $0.006 / task | $0.018 / task lower (gpt-5.6-terra leads) |
gemini-3.1-pro: 8.0% of Google AI Pro (48.1% / 5h, 8.0% / 1w) per run. gpt-5.6-terra: 2.1% of ChatGPT Plus (2.1% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
| Dimension | gemini-3.1-pro | gpt-5.6-terra | Advantage |
|---|---|---|---|
| Capability | 25% | 52% | +27% (gpt-5.6-terra leads) |
| Median task time | 4m 34s | 3m 12s | 1m 22s faster (gpt-5.6-terra leads) |
| Approx. task cost | $0.032 / task | $0.008 / task | $0.024 / task lower (gpt-5.6-terra leads) |
gemini-3.1-pro: 0.7% of Google AI Pro (4.2% / 5h, 0.7% / 1w) per good solve. gpt-5.6-terra: 0.2% of ChatGPT Plus (0.2% / 1w) per good solve. Each figure is a share of that agent's own plan, so there is no delta to draw.
Grades and deltas are comparable only within a suite version. See methodology.
Frequently asked questions
Which is better for coding, gemini-3.1-pro or gpt-5.6-terra?
Both clear tier 3 of 5, but gpt-5.6-terra scores higher on capability: 53% versus 47% on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-08-10.