Models / GPT-5 Nano

OpenAI

GPT-5 Nano

24 published results from 3 sources. Each card shows where the number comes from and what it does not measure. Results are never combined into one score.

Provider
OpenAI
Sources
3
Our benchmarks
0
Price
Not yet published

Reported by others

Reported by Arena (formerly LMArena)
1,339
Business, management and finance · rank 193 of 402
Unit
Arena rating, higher is better
Range
1,323 to 1,354
Sample
1518 votes
Configuration
GPT-5 Nano (high)
Measured
25 Sep 2026
Not shown
Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
Reported by Arena (formerly LMArena)
1,247
Creative writing · rank 256 of 407
Unit
Arena rating, higher is better
Range
1,227 to 1,267
Sample
909 votes
Configuration
GPT-5 Nano (high)
Measured
25 Sep 2026
Not shown
Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
Reported by Arena (formerly LMArena)
1,354
Expert prompts · rank 168 of 359
Unit
Arena rating, higher is better
Range
1,321 to 1,386
Sample
335 votes
Configuration
GPT-5 Nano (high)
Measured
25 Sep 2026
Not shown
Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
Reported by Arena (formerly LMArena)
1,327
Instruction following · rank 198 of 409
Unit
Arena rating, higher is better
Range
1,314 to 1,340
Sample
2019 votes
Configuration
GPT-5 Nano (high)
Measured
25 Sep 2026
Not shown
Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
Reported by Arena (formerly LMArena)
1,338
Overall · rank 209 of 409
Unit
Arena rating, higher is better
Range
1,331 to 1,345
Sample
8111 votes
Configuration
GPT-5 Nano (high)
Measured
25 Sep 2026
Not shown
Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
Reported by Arena (formerly LMArena)
1,289
Writing, literature and language · rank 228 of 408
Unit
Arena rating, higher is better
Range
1,275 to 1,304
Sample
1720 votes
Configuration
GPT-5 Nano (high)
Measured
25 Sep 2026
Not shown
Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
24.7%
Memory · rank 31 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
Measured
16 Dec 2025
Not shown
Not long-term personal memory in a product: sessions are BFCL's scripted ones.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
24.5%
Memory · rank 33 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
Measured
16 Dec 2025
Not shown
Not long-term personal memory in a product: sessions are BFCL's scripted ones.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
34.5%
Multi-turn tasks · rank 36 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
Measured
16 Dec 2025
Not shown
Not open-ended agent work: the tools and tasks are BFCL's simulated APIs.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
0.8%
Multi-turn tasks · rank 101 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
Measured
16 Dec 2025
Not shown
Not open-ended agent work: the tools and tasks are BFCL's simulated APIs.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
51.5%
Overall accuracy · rank 24 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
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.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
27.6%
Overall accuracy · rank 79 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
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.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
75.0%
Relevance detection · rank 62 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
Measured
16 Dec 2025
Not shown
Not whether the call itself was right; only that one was attempted.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
93.8%
Relevance detection · rank 8 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
Measured
16 Dec 2025
Not shown
Not whether the call itself was right; only that one was attempted.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
68.0%
Single-turn calls (curated) · rank 91 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
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.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
80.8%
Single-turn calls (curated) · rank 75 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
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.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
59.4%
Single-turn calls (user-contributed) · rank 88 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
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.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
70.7%
Single-turn calls (user-contributed) · rank 56 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
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.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
72.5%
Web search · rank 14 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
Measured
16 Dec 2025
Not shown
Not general research quality: questions have short, checkable answers.
Reported by Berkeley Function Calling Leaderboard (BFCL) V4
13.5%
Web search · rank 50 of 109
Unit
% correct, higher is better
Configuration
gpt-5-nano
Measured
16 Dec 2025
Not shown
Not general research quality: questions have short, checkable answers.
Reported by Vectara Hallucination Leaderboard
100.0%
Answer rate · rank 1 of 108
Unit
% of documents, higher is better
Configuration
GPT-5 Nano
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.
Reported by Vectara Hallucination Leaderboard
10.5%
Hallucination rate · rank 62 of 108
Unit
% of summaries, lower is better
Configuration
GPT-5 Nano
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.

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