Gemini 3.1 Pro vs Grok 4.7
Grok 4.7 leads overall, C- to F. Gemini 3.1 Pro is about 5.6x cheaper per task. By suite, Gemini 3.1 Pro takes real-world issues (D+ to D) and Grok 4.7 takes spec planning (C to F). Take Gemini 3.1 Pro anyway when you want the side that is cheaper per task, faster on real-world issues and ahead on real-world issues.Measured
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.
Verdict: Grok 4.7 vs Gemini 3.1 Pro
Grok 4.7 leads overall, C- to F. By suite: Gemini 3.1 Pro takes real-world issues, D+ to D (53% vs 47% capability); Grok 4.7 takes spec planning, C to F (68% vs 15% capability); Grok 4.7 takes vibe coding, C to F (64% vs 35% capability). Gemini 3.1 Pro used 10.8% of Google AI Pro's weekly limit per pass, $0.026 per task at the listed price. Grok 4.7 used 12% of SuperGrok Plus's weekly limit per pass, $0.145 per task at the listed price. Per task, Gemini 3.1 Pro is about 5.6x cheaper ($0.026 vs $0.145). Gemini 3.1 Pro is faster on real-world issues: a median task takes 2m 55s against 6m 57s. Both finished every task on it. Reasons to pick Gemini 3.1 Pro anyway: it is cheaper per task ($0.026 vs $0.145), it is faster on real-world issues (2m 55s vs 6m 57s median) and it leads on real-world issues (D+ to D).
Changed since W38: Gemini 3.1 Pro: real-world issues F to D+, real-world issues usage 11.2% to 9.8% of the weekly limit, spec planning usage 1.0% to 0.9% of the weekly limit; Grok 4.7 has one graded week under this version (W39).
| Dimension | Gemini 3.1 Pro | Grok 4.7 | Advantage |
|---|---|---|---|
| Capability | 53% | 47% | +7% (Gemini 3.1 Pro leads) |
| Median task time | 2m 55s | 6m 57s | 4m 2s faster (Gemini 3.1 Pro leads) |
| Approx. task cost | $0.030 / task | $0.077 / task | $0.047 / task lower (Gemini 3.1 Pro leads) |
Gemini 3.1 Pro: 9.8% of Google AI Pro (59.0% / 5h, 9.8% / 1w) per run. Its weekly limit holds 6 of the week's 33.6 5h windows. Grok 4.7: 5.0% of SuperGrok Plus (5.0% / 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 | Grok 4.7 | Advantage |
|---|---|---|---|
| Capability | 15% | 68% | +53% (Grok 4.7 leads) |
| Median task time | 1m 46s | 37m 24s | 35m 38s faster (Gemini 3.1 Pro leads) |
| Approx. task cost | $0.011 / task | $0.402 / task | $0.392 / task lower (Gemini 3.1 Pro leads) |
Gemini 3.1 Pro: 0.9% of Google AI Pro (5.6% / 5h, 0.9% / 1w) per run. Its weekly limit holds 6 of the week's 33.6 5h windows. Grok 4.7: 7.0% of SuperGrok Plus (7.0% / 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 | Grok 4.7 | Advantage |
|---|---|---|---|
| Capability | 35% | 64% | +29% (Grok 4.7 leads) |
| Median task time | 4m 33s | 11m 10s | 6m 37s faster (Gemini 3.1 Pro leads) |
| Approx. task cost | $0.045 / task | $0.092 / task | $0.047 / task lower (Gemini 3.1 Pro leads) |
Gemini 3.1 Pro: 1.0% of Google AI Pro (5.8% / 5h, 1.0% / 1w) per good solve. Its weekly limit holds 6 of the week's 33.6 5h windows. Grok 4.7: 0.4% of SuperGrok Plus (0.4% / 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 Grok 4.7?
Grok 4.7 clears higher: tier 4 of 5 versus tier 3 for Gemini 3.1 Pro on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-09-21.
Which is cheaper per task, Gemini 3.1 Pro or Grok 4.7?
Gemini 3.1 Pro used 10.8% of Google AI Pro's weekly limit per pass, $0.026 per task at the listed price. Grok 4.7 used 12% of SuperGrok Plus's weekly limit per pass, $0.145 per task at the listed price. Per task, Gemini 3.1 Pro is about 5.6x cheaper ($0.026 vs $0.145).