1,419
Overall · rank 109 of 177
- Unit
- Arena rating, higher is better
- Range
- 1,413 to 1,425
- Sample
- 10373 votes
- Configuration
- grok-4-0709
- 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.
1,395
Business, management and finance · rank 132 of 402
- Unit
- Arena rating, higher is better
- Range
- 1,388 to 1,403
- Sample
- 7051 votes
- Configuration
- grok-4-0709
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,395
Creative writing · rank 86 of 407
- Unit
- Arena rating, higher is better
- Range
- 1,386 to 1,403
- Sample
- 5274 votes
- Configuration
- grok-4-0709
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,431
Expert prompts · rank 100 of 359
- Unit
- Arena rating, higher is better
- Range
- 1,418 to 1,445
- Sample
- 2035 votes
- Configuration
- grok-4-0709
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,397
Instruction following · rank 121 of 409
- Unit
- Arena rating, higher is better
- Range
- 1,391 to 1,403
- Sample
- 10732 votes
- Configuration
- grok-4-0709
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,411
Overall · rank 124 of 409
- Unit
- Arena rating, higher is better
- Range
- 1,407 to 1,415
- Sample
- 39389 votes
- Configuration
- grok-4-0709
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,399
Writing, literature and language · rank 94 of 408
- Unit
- Arena rating, higher is better
- Range
- 1,392 to 1,405
- Sample
- 8887 votes
- Configuration
- grok-4-0709
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
75.4%
Irrelevance detection · rank 70 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not general refusal or safety behaviour.
84.3%
Irrelevance detection · rank 36 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not general refusal or safety behaviour.
55.9%
Memory · rank 4 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not long-term personal memory in a product: sessions are BFCL's scripted ones.
50.5%
Memory · rank 11 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not long-term personal memory in a product: sessions are BFCL's scripted ones.
33.9%
Multi-turn tasks · rank 38 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not open-ended agent work: the tools and tasks are BFCL's simulated APIs.
47.0%
Multi-turn tasks · rank 19 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not open-ended agent work: the tools and tasks are BFCL's simulated APIs.
61.4%
Overall accuracy · rank 10 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- 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.
63.0%
Overall accuracy · rank 9 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- 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.
87.5%
Relevance detection · rank 27 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not whether the call itself was right; only that one was attempted.
81.2%
Relevance detection · rank 41 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not whether the call itself was right; only that one was attempted.
85.4%
Single-turn calls (curated) · rank 41 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- 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.
82.8%
Single-turn calls (curated) · rank 61 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- 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.
75.6%
Single-turn calls (user-contributed) · rank 37 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- 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.
72.5%
Single-turn calls (user-contributed) · rank 52 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- 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.
82.0%
Web search · rank 4 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not general research quality: questions have short, checkable answers.
74.0%
Web search · rank 13 of 109
- Unit
- % correct, higher is better
- Configuration
- grok-4-0709
- Measured
- 16 Dec 2025
- Not shown
- Not general research quality: questions have short, checkable answers.
17.0%
Requested-length error · rank 140 of 370
- Unit
- % off the requested word count, lower is better
- Configuration
- grok-4-0709
- Measured
- 24 Sep 2025
- Not shown
- Not other format limits such as character counts or bullet counts.
0.36
Style adherence · rank 148 of 370
- Unit
- score from 0 to 1, higher is better
- Configuration
- grok-4-0709
- Measured
- 24 Sep 2025
- Not shown
- Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
67.0
Writing score · rank 48 of 370
- Unit
- score out of 100, higher is better
- Configuration
- grok-4-0709
- Measured
- 24 Sep 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.