Models / GPT-5.6 Sol

OpenAI

GPT-5.6 Sol

32 published results from 4 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
4
Our benchmarks
0
Price
Not yet published

Reported by others

Reported by Arena (formerly LMArena)
0.03
Confirmed task success · rank 12 of 46
Unit
IPS effect estimate, higher is better
Range
0.01 to 0.06
Sample
26624 observations
Configuration
GPT-5.6 Sol
Measured
28 Sep 2026
Not shown
Not a success rate: the estimated effect of choosing this model as the agent's orchestrator, against an even mix of the models tested, inside Arena's own harness.
Reported by Arena (formerly LMArena)
0.19
Praise over complaint · rank 3 of 46
Unit
IPS effect estimate, higher is better
Range
0.14 to 0.23
Sample
9148 observations
Configuration
GPT-5.6 Sol
Measured
28 Sep 2026
Not shown
Not a success rate: the estimated effect of choosing this model as the agent's orchestrator, against an even mix of the models tested, inside Arena's own harness.
Reported by Arena (formerly LMArena)
0.07
Steerability · rank 4 of 46
Unit
IPS effect estimate, higher is better
Range
0.04 to 0.09
Sample
30733 observations
Configuration
GPT-5.6 Sol
Measured
28 Sep 2026
Not shown
Not a success rate: the estimated effect of choosing this model as the agent's orchestrator, against an even mix of the models tested, inside Arena's own harness.
Reported by Arena (formerly LMArena)
0.00
Tool grounding · rank 1 of 46
Unit
IPS effect estimate, higher is better
Range
0.00 to 0.00
Sample
3736572 observations
Configuration
GPT-5.6 Sol
Measured
28 Sep 2026
Not shown
Not a success rate: the estimated effect of choosing this model as the agent's orchestrator, against an even mix of the models tested, inside Arena's own harness.
Reported by Arena (formerly LMArena)
1,489
Overall · rank 1 of 44
Unit
Arena rating, higher is better
Range
1,480 to 1,498
Sample
4818 votes
Configuration
GPT-5.6 Sol (xhigh)
Measured
13 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)
1,256
Overall · rank 1 of 34
Unit
Arena rating, higher is better
Range
1,248 to 1,263
Sample
29663 votes
Configuration
GPT-5.6 Sol (xhigh)
Measured
24 Aug 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)
1,476
Overall · rank 9 of 177
Unit
Arena rating, higher is better
Range
1,472 to 1,479
Sample
33919 votes
Configuration
GPT-5.6 Sol (xhigh)
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.
Reported by Arena (formerly LMArena)
1,485
Business, management and finance · rank 6 of 402
Unit
Arena rating, higher is better
Range
1,477 to 1,493
Sample
6528 votes
Configuration
GPT-5.6 Sol (xhigh)
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)
1,470
Creative writing · rank 6 of 407
Unit
Arena rating, higher is better
Range
1,462 to 1,478
Sample
6868 votes
Configuration
GPT-5.6 Sol (xhigh)
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)
1,534
Expert prompts · rank 1 of 359
Unit
Arena rating, higher is better
Range
1,524 to 1,544
Sample
3890 votes
Configuration
GPT-5.6 Sol (xhigh)
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)
1,489
Instruction following · rank 5 of 409
Unit
Arena rating, higher is better
Range
1,483 to 1,496
Sample
12137 votes
Configuration
GPT-5.6 Sol (xhigh)
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)
1,483
Overall · rank 8 of 409
Unit
Arena rating, higher is better
Range
1,479 to 1,488
Sample
34258 votes
Configuration
GPT-5.6 Sol (xhigh)
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)
1,483
Writing, literature and language · rank 5 of 408
Unit
Arena rating, higher is better
Range
1,475 to 1,490
Sample
9085 votes
Configuration
GPT-5.6 Sol (xhigh)
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 tau2-bench
27.8%
Consistency (pass^4) · rank 6 of 21
Unit
% of tasks, higher is better
Configuration
gpt-5.6-sol
Measured
22 Jul 2026
Not shown
Not your policies or customers: the tasks and policies are tau2's own, and the customer is simulated by gpt-5.2.
Reported by tau2-bench
46.9%
Task success (pass^1) · rank 4 of 21
Unit
% of tasks, higher is better
Configuration
gpt-5.6-sol
Measured
22 Jul 2026
Not shown
Not your policies or customers: the tasks and policies are tau2's own, and the customer is simulated by gpt-5.2.
Reported by UGI Leaderboard
4.0%
Requested-length error · rank 28 of 370
Unit
% off the requested word count, lower is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not other format limits such as character counts or bullet counts.
Reported by UGI Leaderboard
10.0%
Requested-length error · rank 81 of 370
Unit
% off the requested word count, lower is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not other format limits such as character counts or bullet counts.
Reported by UGI Leaderboard
7.0%
Requested-length error · rank 48 of 370
Unit
% off the requested word count, lower is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not other format limits such as character counts or bullet counts.
Reported by UGI Leaderboard
16.0%
Requested-length error · rank 127 of 370
Unit
% off the requested word count, lower is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not other format limits such as character counts or bullet counts.
Reported by UGI Leaderboard
1.0%
Requested-length error · rank 3 of 370
Unit
% off the requested word count, lower is better
Configuration
GPT-5.6 Sol (xhigh)
Measured
9 Jul 2026
Not shown
Not other format limits such as character counts or bullet counts.
Reported by UGI Leaderboard
0.35
Style adherence · rank 153 of 370
Unit
score from 0 to 1, higher is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
Reported by UGI Leaderboard
0.36
Style adherence · rank 117 of 370
Unit
score from 0 to 1, higher is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
Reported by UGI Leaderboard
0.35
Style adherence · rank 166 of 370
Unit
score from 0 to 1, higher is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
Reported by UGI Leaderboard
0.35
Style adherence · rank 153 of 370
Unit
score from 0 to 1, higher is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
Reported by UGI Leaderboard
0.37
Style adherence · rank 88 of 370
Unit
score from 0 to 1, higher is better
Configuration
GPT-5.6 Sol (xhigh)
Measured
9 Jul 2026
Not shown
Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
Reported by UGI Leaderboard
65.3
Writing score · rank 62 of 370
Unit
score out of 100, higher is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not business copy quality: UGI's prompts are private and lean towards creative writing, and models that often refuse get no score.
Reported by UGI Leaderboard
63.0
Writing score · rank 84 of 370
Unit
score out of 100, higher is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not business copy quality: UGI's prompts are private and lean towards creative writing, and models that often refuse get no score.
Reported by UGI Leaderboard
65.4
Writing score · rank 61 of 370
Unit
score out of 100, higher is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not business copy quality: UGI's prompts are private and lean towards creative writing, and models that often refuse get no score.
Reported by UGI Leaderboard
59.9
Writing score · rank 103 of 370
Unit
score out of 100, higher is better
Configuration
gpt-5.6-sol
Measured
9 Jul 2026
Not shown
Not business copy quality: UGI's prompts are private and lean towards creative writing, and models that often refuse get no score.
Reported by UGI Leaderboard
63.2
Writing score · rank 82 of 370
Unit
score out of 100, higher is better
Configuration
GPT-5.6 Sol (xhigh)
Measured
9 Jul 2026
Not shown
Not business copy quality: UGI's prompts are private and lean towards creative writing, and models that often refuse get no score.
Reported by Vectara Hallucination Leaderboard
99.1%
Answer rate · rank 64 of 108
Unit
% of documents, higher is better
Configuration
GPT-5.6 Sol
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
12.4%
Hallucination rate · rank 85 of 108
Unit
% of summaries, lower is better
Configuration
GPT-5.6 Sol
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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