0
Ladder Elo · rank 12 of 16
- Unit
- ladder Elo, higher is better
- Configuration
- DeepSeek V4 Pro 0423, provider default reasoning
- Measured
- 30 Sep 2026
- Not shown
- Not a business skill: chess against an engine on a real clock, used here as a speed-under-pressure signal.
6.4 s
Median move time · rank 8 of 16
- Unit
- milliseconds, lower is better
- Configuration
- DeepSeek V4 Pro 0423, provider default reasoning
- Measured
- 30 Sep 2026
- Not shown
- Not general response speed: replies are one short move.
$0.20
Cost of a run · rank 8 of 17
- Unit
- US dollars, lower is better
- Configuration
- DeepSeek V4 Pro 0423, provider default reasoning
- Measured
- 29 Sep 2026
- Not shown
- Not your cost: prices are those charged through OpenRouter on the run date.
0
Months over budget · rank 1 of 17
- Unit
- months of 12, lower is better
- Configuration
- DeepSeek V4 Pro 0423, provider default reasoning
- Measured
- 29 Sep 2026
- Not shown
- Not real ad performance: the market is a deterministic simulation of one invented skincare brand.
28.2
Overall score · rank 12 of 17
- Unit
- score out of 100, higher is better
- Configuration
- DeepSeek V4 Pro 0423, provider default reasoning
- Measured
- 29 Sep 2026
- Not shown
- Not real ad performance: the market is a deterministic simulation of one invented skincare brand.
£0.26
Return on ad spend · rank 11 of 17
- Unit
- profit per £1 spent, higher is better
- Configuration
- DeepSeek V4 Pro 0423, provider default reasoning
- Measured
- 29 Sep 2026
- Not shown
- Not real ad performance: the market is a deterministic simulation of one invented skincare brand.
-0.04
Confirmed task success · rank 24 of 46
- Unit
- IPS effect estimate, higher is better
- Range
- -0.06 to -0.01
- Sample
- 25002 observations
- Configuration
- DeepSeek V4 Pro 0423
- 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.
-0.02
Praise over complaint · rank 17 of 46
- Unit
- IPS effect estimate, higher is better
- Range
- -0.05 to 0.02
- Sample
- 9770 observations
- Configuration
- DeepSeek V4 Pro 0423
- 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.
-0.03
Steerability · rank 22 of 46
- Unit
- IPS effect estimate, higher is better
- Range
- -0.05 to -0.01
- Sample
- 36510 observations
- Configuration
- DeepSeek V4 Pro 0423
- 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.
-0.00
Tool grounding · rank 30 of 46
- Unit
- IPS effect estimate, higher is better
- Range
- -0.00 to -0.00
- Sample
- 1800929 observations
- Configuration
- DeepSeek V4 Pro 0423
- 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.
1,455
Overall · rank 43 of 177
- Unit
- Arena rating, higher is better
- Range
- 1,452 to 1,458
- Sample
- 57523 votes
- Configuration
- DeepSeek V4 Pro 0423
- 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.
1,460
Business, management and finance · rank 31 of 402
- Unit
- Arena rating, higher is better
- Range
- 1,453 to 1,466
- Sample
- 11411 votes
- Configuration
- DeepSeek V4 Pro 0423
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,446
Creative writing · rank 24 of 407
- Unit
- Arena rating, higher is better
- Range
- 1,439 to 1,453
- Sample
- 9697 votes
- Configuration
- DeepSeek V4 Pro 0423
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,480
Expert prompts · rank 37 of 359
- Unit
- Arena rating, higher is better
- Range
- 1,471 to 1,488
- Sample
- 5925 votes
- Configuration
- DeepSeek V4 Pro 0423
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,452
Instruction following · rank 40 of 409
- Unit
- Arena rating, higher is better
- Range
- 1,447 to 1,458
- Sample
- 20066 votes
- Configuration
- DeepSeek V4 Pro 0423
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,458
Overall · rank 48 of 409
- Unit
- Arena rating, higher is better
- Range
- 1,454 to 1,461
- Sample
- 57564 votes
- Configuration
- DeepSeek V4 Pro 0423
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
1,451
Writing, literature and language · rank 28 of 408
- Unit
- Arena rating, higher is better
- Range
- 1,445 to 1,457
- Sample
- 14117 votes
- Configuration
- DeepSeek V4 Pro 0423
- Measured
- 25 Sep 2026
- Not shown
- Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.
25.3%
Consistency (pass^5) · rank 5 of 5
- Unit
- % of tasks, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 25 May 2026
- Not shown
- Not the model alone: it runs inside STATE-Bench's agent loop against simulated users, and versions of the benchmark are not comparable.
45.6%
Customer support task success (pass@1) · rank 4 of 5
- Unit
- % of tasks, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 25 May 2026
- Not shown
- Not the model alone: it runs inside STATE-Bench's agent loop against simulated users, and versions of the benchmark are not comparable.
48.4%
Shopping assistant task success (pass@1) · rank 4 of 5
- Unit
- % of tasks, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 25 May 2026
- Not shown
- Not the model alone: it runs inside STATE-Bench's agent loop against simulated users, and versions of the benchmark are not comparable.
47.2%
Task success (pass@1) · rank 4 of 5
- Unit
- % of tasks, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 25 May 2026
- Not shown
- Not the model alone: it runs inside STATE-Bench's agent loop against simulated users, and versions of the benchmark are not comparable.
47.6%
Travel task success (pass@1) · rank 4 of 5
- Unit
- % of tasks, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 25 May 2026
- Not shown
- Not the model alone: it runs inside STATE-Bench's agent loop against simulated users, and versions of the benchmark are not comparable.
3.36
User experience · rank 5 of 5
- Unit
- score from 1 to 5, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 25 May 2026
- Not shown
- Not real customer satisfaction: the ratings come from a model-based judge.
40.7%
Average · rank 29 of 34
- Unit
- % resolved, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 30 Jun 2026
- Not shown
- Not the model alone: the score is for the model inside the OpenHands agent, at the SDK version shown.
36.8%
Front end (SWE-Bench Multimodal) · rank 11 of 34
- Unit
- % resolved, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 30 Jun 2026
- Not shown
- Not the model alone: the score is for the model inside the OpenHands agent, at the SDK version shown.
12.5%
Greenfield (Commit0) · rank 25 of 34
- Unit
- % resolved, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 30 Jun 2026
- Not shown
- Not the model alone: the score is for the model inside the OpenHands agent, at the SDK version shown.
12.7%
Information gathering (GAIA) · rank 33 of 34
- Unit
- % resolved, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 30 Jun 2026
- Not shown
- Not the model alone: the score is for the model inside the OpenHands agent, at the SDK version shown.
73.2%
Issue resolution (SWE-Bench) · rank 22 of 34
- Unit
- % resolved, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 30 Jun 2026
- Not shown
- Not the model alone: the score is for the model inside the OpenHands agent, at the SDK version shown.
68.1%
Testing (SWT-Bench) · rank 18 of 34
- Unit
- % resolved, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 30 Jun 2026
- Not shown
- Not the model alone: the score is for the model inside the OpenHands agent, at the SDK version shown.
42.0%
Requested-length error · rank 295 of 370
- Unit
- % off the requested word count, lower is better
- Configuration
- deepseek-v4-pro
- Measured
- 26 Apr 2026
- Not shown
- Not other format limits such as character counts or bullet counts.
34.0%
Requested-length error · rank 269 of 370
- Unit
- % off the requested word count, lower is better
- Configuration
- deepseek-v4-pro
- Measured
- 26 Apr 2026
- Not shown
- Not other format limits such as character counts or bullet counts.
0.35
Style adherence · rank 173 of 370
- Unit
- score from 0 to 1, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 26 Apr 2026
- Not shown
- Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
0.36
Style adherence · rank 140 of 370
- Unit
- score from 0 to 1, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 26 Apr 2026
- Not shown
- Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
60.2
Writing score · rank 98 of 370
- Unit
- score out of 100, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 26 Apr 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.
68.4
Writing score · rank 36 of 370
- Unit
- score out of 100, higher is better
- Configuration
- deepseek-v4-pro
- Measured
- 26 Apr 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.
97.2%
Answer rate · rank 87 of 108
- Unit
- % of documents, higher is better
- Configuration
- DeepSeek V4 Pro 0423
- 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.
8.6%
Hallucination rate · rank 44 of 108
- Unit
- % of summaries, lower is better
- Configuration
- DeepSeek V4 Pro 0423
- 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.