Models / Gemini 3.8 Flash

Google

Gemini 3.8 Flash

42 published results from 5 sources. Each card shows where the number comes from and what it does not measure. Results are never combined into one score.

Provider
Google
Sources
5
Our benchmarks
3
Price
Not yet published

Measured by Spring Prompt

Measured by Spring Prompt · BulletBench
1,126
Ladder Elo · rank 1 of 16
Unit
ladder Elo, higher is better
Range
949 to 1,347
Sample
8 games
Configuration
Gemini 3.8 Flash, 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.
Measured by Spring Prompt · BulletBench
4.0 s
Median move time · rank 4 of 16
Unit
milliseconds, lower is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not general response speed: replies are one short move.
Measured by Spring Prompt · CatalogBench
97.3%
Content quality · rank 7 of 18
Unit
% of checks, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
0.0%
Failed outputs · rank 1 of 18
Unit
% of products, lower is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not a provider outage: provider errors are retried before a product counts as failed.
Measured by Spring Prompt · CatalogBench
2.4%
Publish-ready listings · rank 11 of 18
Unit
% of products, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
1.8%
Reliably publish-ready · rank 8 of 18
Unit
% of products, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
7.12
Unsupported claims · rank 11 of 18
Unit
claims per product, lower is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
98.8%
Channel compliance · rank 13 of 18
Unit
% of products, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
100.0%
Conflicts caught · rank 1 of 18
Unit
% of conflicts, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
97.1%
Content quality · rank 8 of 18
Unit
% of checks, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
$0.0103
Cost per product · rank 9 of 18
Unit
US dollars, lower is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your cost: prices are those charged through OpenRouter on the run date.
Measured by Spring Prompt · CatalogBench
94.3%
Decision accuracy · rank 13 of 18
Unit
% of decisions, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
0.0%
Failed outputs · rank 1 of 18
Unit
% of products, lower is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not a provider outage: provider errors are retried before a product counts as failed.
Measured by Spring Prompt · CatalogBench
92.7%
Field accuracy · rank 12 of 18
Unit
% of missing fields, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
0.2%
Invented values · rank 2 of 18
Unit
% of filled values, lower is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
33.3%
Publish-ready listings · rank 13 of 18
Unit
% of products, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
16.1%
Reliably publish-ready · rank 12 of 18
Unit
% of products, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · CatalogBench
1.79
Unsupported claims · rank 13 of 18
Unit
claims per product, lower is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
30 Sep 2026
Not shown
Not your catalogue: invented products with generated images, so a model's result on your own feed can differ.
Measured by Spring Prompt · ROASBench
$0.16
Cost of a run · rank 6 of 17
Unit
US dollars, lower is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
29 Sep 2026
Not shown
Not your cost: prices are those charged through OpenRouter on the run date.
Measured by Spring Prompt · ROASBench
0
Months over budget · rank 1 of 17
Unit
months of 12, lower is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
29 Sep 2026
Not shown
Not real ad performance: the market is a deterministic simulation of one invented skincare brand.
Measured by Spring Prompt · ROASBench
51.4
Overall score · rank 7 of 17
Unit
score out of 100, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
29 Sep 2026
Not shown
Not real ad performance: the market is a deterministic simulation of one invented skincare brand.
Measured by Spring Prompt · ROASBench
£0.65
Return on ad spend · rank 6 of 17
Unit
profit per £1 spent, higher is better
Configuration
Gemini 3.8 Flash, provider default reasoning
Measured
29 Sep 2026
Not shown
Not real ad performance: the market is a deterministic simulation of one invented skincare brand.

Reported by others

Reported by Arena (formerly LMArena)
0.09
Confirmed task success · rank 3 of 46
Unit
IPS effect estimate, higher is better
Range
0.08 to 0.11
Sample
21269 observations
Configuration
Gemini 3.8 Flash
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)
0.05
Praise over complaint · rank 9 of 46
Unit
IPS effect estimate, higher is better
Range
0.02 to 0.08
Sample
7753 observations
Configuration
Gemini 3.8 Flash
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)
0.04
Steerability · rank 6 of 46
Unit
IPS effect estimate, higher is better
Range
0.02 to 0.06
Sample
20838 observations
Configuration
Gemini 3.8 Flash
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 24 of 46
Unit
IPS effect estimate, higher is better
Range
0.00 to 0.00
Sample
3499854 observations
Configuration
Gemini 3.8 Flash
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)
1,477
Overall · rank 6 of 177
Unit
Arena rating, higher is better
Range
1,473 to 1,482
Sample
21118 votes
Configuration
Gemini 3.8 Flash (high)
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)
1,482
Business, management and finance · rank 7 of 402
Unit
Arena rating, higher is better
Range
1,472 to 1,492
Sample
4145 votes
Configuration
Gemini 3.8 Flash (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)
1,482
Creative writing · rank 4 of 407
Unit
Arena rating, higher is better
Range
1,472 to 1,491
Sample
4474 votes
Configuration
Gemini 3.8 Flash (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)
1,529
Expert prompts · rank 1 of 359
Unit
Arena rating, higher is better
Range
1,517 to 1,541
Sample
2597 votes
Configuration
Gemini 3.8 Flash (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)
1,488
Instruction following · rank 5 of 409
Unit
Arena rating, higher is better
Range
1,480 to 1,496
Sample
7901 votes
Configuration
Gemini 3.8 Flash (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)
1,492
Overall · rank 4 of 409
Unit
Arena rating, higher is better
Range
1,487 to 1,498
Sample
21728 votes
Configuration
Gemini 3.8 Flash (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)
1,486
Writing, literature and language · rank 4 of 408
Unit
Arena rating, higher is better
Range
1,477 to 1,495
Sample
5831 votes
Configuration
Gemini 3.8 Flash (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 UGI Leaderboard
13.0%
Requested-length error · rank 103 of 370
Unit
% off the requested word count, lower is better
Configuration
Gemini 3.8 Flash (high)
Measured
3 Sep 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
gemini-3.8-flash
Measured
3 Sep 2026
Not shown
Not other format limits such as character counts or bullet counts.
Reported by UGI Leaderboard
14.0%
Requested-length error · rank 111 of 370
Unit
% off the requested word count, lower is better
Configuration
gemini-3.8-flash
Measured
3 Sep 2026
Not shown
Not other format limits such as character counts or bullet counts.
Reported by UGI Leaderboard
0.34
Style adherence · rank 229 of 370
Unit
score from 0 to 1, higher is better
Configuration
Gemini 3.8 Flash (high)
Measured
3 Sep 2026
Not shown
Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
Reported by UGI Leaderboard
0.32
Style adherence · rank 285 of 370
Unit
score from 0 to 1, higher is better
Configuration
gemini-3.8-flash
Measured
3 Sep 2026
Not shown
Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
Reported by UGI Leaderboard
0.34
Style adherence · rank 238 of 370
Unit
score from 0 to 1, higher is better
Configuration
gemini-3.8-flash
Measured
3 Sep 2026
Not shown
Not brand voice on your own examples: UGI's prompts are private and lean towards creative writing.
Reported by UGI Leaderboard
72.0
Writing score · rank 13 of 370
Unit
score out of 100, higher is better
Configuration
Gemini 3.8 Flash (high)
Measured
3 Sep 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
72.7
Writing score · rank 7 of 370
Unit
score out of 100, higher is better
Configuration
gemini-3.8-flash
Measured
3 Sep 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
78.5
Writing score · rank 1 of 370
Unit
score out of 100, higher is better
Configuration
gemini-3.8-flash
Measured
3 Sep 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.

Compare Gemini 3.8 Flash with