UI-Bench B

Name: UI-Bench
Creator: AfterQuery
Keywords: Coding,Computer Use,Enterprise Workflows

AI benchmark · Coding

Publisher: AfterQuery
Domains: Coding Computer Use Enterprise Workflows
On X: @afterquery ↗
Tier: B why
Snapshot: October 11, 2026

Open benchmark ↗afterquery.com/research

Latest from AfterQuery on X

@afterquery ↗

Not all coding data is created equal. Using only 500 tasks from @AfterQuery's SWE agent dataset, our internal post-training team was able to improve Qwen3.8-27B-Medium by 11.3 points in only 15 steps of GRPO. Read more about our training experiment in the blog post linked in the comments.
— afterquery (@afterquery) Oct 8, 2026
Congratulations to the @motif_tech team on the release of Motif 3! AfterQuery is proud to have served as the sole data partner on this model.
— afterquery (@afterquery) Aug 24, 2026
Congrats to the @WeAreLegora team on the release of the Legora BAR, a benchmark for agentic legal work built on 5,161 real law firm cases across 28 practice areas! @AfterQuery helped QA the benchmark with Legora. Proud to work with their team on measuring the frontier of agentic legal work. Link to the full blog post in the replies.
— afterquery (@afterquery) Jul 28, 2026

What is UI-Bench?

UI-Bench measures the visual design quality of websites and apps generated by AI text-to-app tools, using expert pairwise comparisons ranked with a TrueSkill-derived model.

Media mostly
“the first large-scale benchmark that evaluates visual excellence across competing AI text-to-app tools through expert pairwise comparison.”
arxiv.org/abs/2508.20410 ↗
Coding
“UI-Bench establishes a reproducible standard for advancing AI-driven web design.”
arxiv.org/abs/2508.20410 ↗

Paper: arxiv.org/abs/2508.20410 ↗

Tier B

Established: 15 or more models scored, or curated RL directories rate it.

How much stands behind a tier: usage, who backs it, a confirmed line from its own site or paper, and a clear read on X. High with three of the four, medium with two, low otherwise.

built by AfterQuery
in curated RL directories (3 pts)

How we got to tier B

Adoption: built by AfterQuery. Tier C.
Not yet read on X.
In curated RL directories: 3 points, a floor of B. Raised to B.
Confirmed: a line from its own site or paper places it.

A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.

Where UI-Bench sits

Its realm in the universe, live. Hover a star for its name; click to open it. Open it in the universe

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