Compare / ai21-jamba-large-1.7 vs GPT-5.2
ai21-jamba-large-1.7 vs GPT-5.2
5 results from 2 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | ai21-jamba-large-1.7 | GPT-5.2 |
|---|---|---|---|
| UGI Leaderboardreported | Requested-length error% off the requested word count | 20.0% | 76.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.36 | 0.40 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 38.0 | 49.4 |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 98.9% | 100.0% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 9.7% | 8.4% |
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.