gemini-3.6-flash vs claude-opus-5
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-3.6-flash | claude-opus-5 | Advantage |
|---|---|---|---|
| Capability | 60% | 60% | Even |
| Median task time | 2m 17s | 3m 57s | 1m 41s faster (gemini-3.6-flash leads) |
| Approx. task cost | $0.039 / task | $0.010 / task | $0.029 / task lower (claude-opus-5 leads) |
gemini-3.6-flash: 12.6% of Google AI Pro (about 72.1% / 5h, 12.6% / 1w) per run. claude-opus-5: 11.0% of Claude Max 20x (11.0% / 5h, 1.0% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
Only claude-opus-5 has run this suite, so there is no head-to-head yet.
| Dimension | gemini-3.6-flash | claude-opus-5 | Advantage |
|---|---|---|---|
| Capability | 72% | 69% | +3% (gemini-3.6-flash leads) |
| Median task time | 1m 54s | 4m 59s | 3m 5s faster (gemini-3.6-flash leads) |
| Approx. task cost | $0.038 / task | $0.011 / task | $0.027 / task lower (claude-opus-5 leads) |
gemini-3.6-flash: 0.8% of Google AI Pro (4.9% / 5h, 0.8% / 1w) per good solve. claude-opus-5: 0.8% of Claude Max 20x (0.8% / 5h, 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-3.6-flash or claude-opus-5?
They are even on our ladder: both clear tier 4 of 5 at 60% capability on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-08-10.