1,380
Overall · rank 152 of 177
- Unit
- Arena rating, higher is better
- Range
- 1,374 to 1,386
- Sample
- 11920 votes
- Configuration
- Nova 2 Lite
- Measured
- 25 Sep 2026
- Not shown
- Not an error rate: claims that cannot be checked on the web are skipped, and preference still carries most of the weight.
1,351
Business, management and finance · rank 182 of 402
- Unit
- Arena rating, higher is better
- Range
- 1,339 to 1,364
- Sample
- 2312 votes
- Configuration
- Nova 2 Lite
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,269
Creative writing · rank 234 of 407
- Unit
- Arena rating, higher is better
- Range
- 1,254 to 1,284
- Sample
- 1756 votes
- Configuration
- Nova 2 Lite
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,354
Expert prompts · rank 179 of 359
- Unit
- Arena rating, higher is better
- Range
- 1,333 to 1,374
- Sample
- 786 votes
- Configuration
- Nova 2 Lite
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,327
Instruction following · rank 201 of 409
- Unit
- Arena rating, higher is better
- Range
- 1,317 to 1,338
- Sample
- 3420 votes
- Configuration
- Nova 2 Lite
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,335
Overall · rank 214 of 409
- Unit
- Arena rating, higher is better
- Range
- 1,329 to 1,341
- Sample
- 12396 votes
- Configuration
- Nova 2 Lite
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,298
Writing, literature and language · rank 219 of 408
- Unit
- Arena rating, higher is better
- Range
- 1,287 to 1,310
- Sample
- 2803 votes
- Configuration
- Nova 2 Lite
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
82.1%
Irrelevance detection · rank 48 of 109
- Unit
- % correct, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 16 Dec 2025
- Not shown
- Not general refusal or safety behaviour.
2.4%
Memory · rank 100 of 109
- Unit
- % correct, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 16 Dec 2025
- Not shown
- Not long-term personal memory in a product: sessions are BFCL's scripted ones.
2.1%
Multi-turn tasks · rank 93 of 109
- Unit
- % correct, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 16 Dec 2025
- Not shown
- Not open-ended agent work: the tools and tasks are BFCL's simulated APIs.
27.1%
Overall accuracy · rank 80 of 109
- Unit
- % correct, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 16 Dec 2025
- Not shown
- Not a neutral average: the weighting is BFCL's. Not reliability on your own tools: BFCL's functions and queries are a fixed test set, and a correct call is judged by its form, not by what it achieved.
75.0%
Relevance detection · rank 62 of 109
- Unit
- % correct, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 16 Dec 2025
- Not shown
- Not whether the call itself was right; only that one was attempted.
87.0%
Single-turn calls (curated) · rank 30 of 109
- Unit
- % correct, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 16 Dec 2025
- Not shown
- Not reliability on your own tools: BFCL's functions and queries are a fixed test set, and a correct call is judged by its form, not by what it achieved.
80.8%
Single-turn calls (user-contributed) · rank 9 of 109
- Unit
- % correct, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 16 Dec 2025
- Not shown
- Not reliability on your own tools: BFCL's functions and queries are a fixed test set, and a correct call is judged by its form, not by what it achieved.
5.0%
Web search · rank 63 of 109
- Unit
- % correct, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 16 Dec 2025
- Not shown
- Not general research quality: questions have short, checkable answers.
46.0%
Requested-length error · rank 308 of 370
- Unit
- % off the requested word count, lower is better
- Configuration
- nova-2-lite-v1
- Measured
- 6 Dec 2025
- Not shown
- Not other format limits such as character counts or bullet counts.
45.0%
Requested-length error · rank 306 of 370
- Unit
- % off the requested word count, lower is better
- Configuration
- nova-2-lite-v1
- Measured
- 6 Dec 2025
- Not shown
- Not other format limits such as character counts or bullet counts.
0.35
Style adherence · rank 190 of 370
- Unit
- score from 0 to 1, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 6 Dec 2025
- Not shown
- Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
0.34
Style adherence · rank 224 of 370
- Unit
- score from 0 to 1, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 6 Dec 2025
- Not shown
- Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
23.5
Writing score · rank 317 of 370
- Unit
- score out of 100, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 6 Dec 2025
- Not shown
- Not business copy quality: UGI's prompts are private and lean towards creative writing, and models that often refuse get no score.
23.4
Writing score · rank 318 of 370
- Unit
- score out of 100, higher is better
- Configuration
- nova-2-lite-v1
- Measured
- 6 Dec 2025
- Not shown
- Not business copy quality: UGI's prompts are private and lean towards creative writing, and models that often refuse get no score.
99.6%
Answer rate · rank 48 of 108
- Unit
- % of documents, higher is better
- Configuration
- Nova 2 Lite
- Measured
- 22 Sep 2026
- Not shown
- Not a quality score: a low rate usually means content filters were triggered, and hallucination rates are measured on answered documents only.
5.1%
Hallucination rate · rank 10 of 108
- Unit
- % of summaries, lower is better
- Configuration
- Nova 2 Lite
- Measured
- 22 Sep 2026
- Not shown
- Not errors in open questions or other tasks: only summarisation, judged by Vectara's own model (HHEM-2.3), not by people, on news-style documents rather than your data.