antigravity-cli + gemini-3.1-pro vs grok-cli + grok-4.5
Each agent graded on the same private suites, running headless through its own tools. Deltas are oriented so a win is a win, whichever way the metric runs.
antigravity-cliantigravity-cli + gemini-3.1-proSolves up to tier 5 at 16.8% of Google AI Pro per run · 5.9 runs/weekoverall pendinggrok-cligrok-cli + grok-4.5Solves up to tier 5 at 8.0% of SuperGrok per run · 12.5 runs/weekoverall pending
real-world@v3DvsC
| Dimension | antigravity-cli + gemini-3.1-pro | grok-cli + grok-4.5 | Delta |
|---|---|---|---|
| Capability | 47% | 60% | 13% · grok-cli + grok-4.5 |
| Median latency | 150525 ms | 246650 ms | 96125 ms · antigravity-cli + gemini-3.1-pro |
| Reliability | 100% | 100% | even |
| Error rate | 0% | 0% | even |
antigravity-cli + gemini-3.1-pro: 16.8% of Google AI Pro per run, about 5.9 runs per week. grok-cli + grok-4.5: 8.0% of SuperGrok per run, about 12.5 runs per week. 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.