Compare / Claude Fable 5.1 vs Gemini 3 Flash Preview
Claude Fable 5.1 vs Gemini 3 Flash Preview
6 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Fable 5.1 | Gemini 3 Flash Preview |
|---|---|---|---|
| GDP.pdfreported | Professional document tasks% of rubric | 29.6% | 10.0% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 70.8% | 66.8% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 3.0% | 16.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.43 | 0.37 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 63.9 | 67.7 |
| Vending-Bench 2reported | Money after a yearUS dollars | $5,421.56 | $3,634.72 |
Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.