gemini-3.7-flash vs claude-fable-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-3.7-flash | claude-fable-5 | Advantage |
|---|---|---|---|
| Capability | 53% | 60% | +7% (claude-fable-5 leads) |
| Median task time | 2m 50s | 3m 12s | 22s faster (gemini-3.7-flash leads) |
| Approx. task cost | $0.035 / task | $0.031 / task | $0.004 / task lower (claude-fable-5 leads) |
gemini-3.7-flash: 11.3% of Google AI Pro (67.8% / 5h, 11.3% / 1w) per run. claude-fable-5: 34.0% of Claude Max 20x (34.0% / 5h, 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-3.7-flash | claude-fable-5 | Advantage |
|---|---|---|---|
| Capability | 40% | 64% | +25% (claude-fable-5 leads) |
| Median task time | 1m 59s | 5m 54s | 3m 55s faster (gemini-3.7-flash leads) |
| Approx. task cost | $0.014 / task | $0.041 / task | $0.027 / task lower (gemini-3.7-flash leads) |
gemini-3.7-flash: 1.2% of Google AI Pro (7.3% / 5h, 1.2% / 1w) per run. claude-fable-5: 12.0% of Claude Max 20x (12.0% / 5h, 1.0% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
| Dimension | gemini-3.7-flash | claude-fable-5 | Advantage |
|---|---|---|---|
| Capability | 79% | 69% | +10% (gemini-3.7-flash leads) |
| Median task time | 4m 7s | 5m 25s | 1m 19s faster (gemini-3.7-flash leads) |
| Approx. task cost | $0.029 / task | $0.038 / task | $0.010 / task lower (gemini-3.7-flash leads) |
gemini-3.7-flash: 0.6% of Google AI Pro (3.7% / 5h, 0.6% / 1w) per good solve. claude-fable-5: 2.8% of Claude Max 20x (2.8% / 5h, 0.6% / 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-3.7-flash or claude-fable-5?
claude-fable-5 clears higher: tier 4 of 5 versus tier 3 for gemini-3.7-flash on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-08-16.