The Human-Centered Language Benchmark · November 2026

Requests / 18

Library hours

Government · clean · intended layer: human-centered

Write a two-sentence announcement that the library's Tuesday hours now run until 8pm.

What a pass looks like (judges see this; models don't): Two sentences, the new hours, done. Nothing else.

Practices tested: Over-correction

Every model on this request

Two samples per condition. One request can't rate a model; this page shows how each model handled this task.

Claude Opus 5.5Anthropic Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Claude Opus 5.5's full page

Without guidance

Sample 1 of 2 · 30 words
Starting this week, the library will stay open until 8pm every Tuesday. Stop by after work or school to browse, study, or pick up your holds during the extended hours!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 31 words
Great news for evening visitors: starting this week, the library will stay open until 8pm every Tuesday! Stop by after work or school to browse, study, or pick up your holds.
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 26 words
Starting this week, the library is open until 8 p.m. on Tuesdays. Stop by after work or school to browse, study, or pick up your holds.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 31 words
Starting this week, the library is open until 8 p.m. on Tuesdays. Stop by after work or school to borrow books, use the computers, or find a quiet place to study.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 30 words
Starting this week, the library is open until 8pm on Tuesdays. Stop by after work or school to borrow books, use the computers, or find a quiet place to study.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 25 words
Starting this week, the library is open until 8pm on Tuesdays. Stop by after work or school to browse, study, or pick up your holds.
Practice Judge A Judge B Judge C Result
Claude Sonnet 5.5Anthropic Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Claude Sonnet 5.5's full page

Without guidance

Sample 1 of 2 · 40 words
We're pleased to announce that the library is now open until 8:00 PM on Tuesdays, extending our previous closing time. Stop by after work or school to borrow books, study, or enjoy our quiet spaces a little longer each week!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 34 words
We're pleased to announce that the library will now stay open until 8 p.m. on Tuesdays. Stop by after work or school to borrow a book, study, or enjoy a quiet evening with us!
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 29 words
The library is now open until 8 p.m. on Tuesdays. Stop by after work or school to borrow books, use a computer, or find a quiet place to study.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 24 words
The library is now open until 8 p.m. on Tuesdays. Stop by in the evening to borrow books, study, or spend time with neighbors.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 31 words
Starting this week, the library is open until 8 p.m. on Tuesdays. Stop by after work or school to borrow books, use the computers, or find a quiet place to study.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 31 words
Starting this week, the library is open until 8 p.m. on Tuesdays. Stop by after work or school to borrow books, use the computers, or find a quiet place to read.
Practice Judge A Judge B Judge C Result
DeepSeek V4.1 FlashDeepSeek Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
DeepSeek V4.1 Flash's full page

Without guidance

Sample 1 of 2 · 20 words
The library’s Tuesday hours now extend until 8:00 p.m. We look forward to welcoming you during these added evening hours.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 22 words
The library’s Tuesday hours now extend until 8 p.m. We look forward to welcoming you during our new, later Tuesday closing time.
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 28 words
The library is now open until 8 p.m. on Tuesdays. Stop by on Tuesday evenings to borrow materials, use the computers, or find a quiet place to study.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 23 words
The library is now open until 8 p.m. on Tuesdays. Stop by any Tuesday evening to use the collection, computers, and study spaces.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 26 words
The library is now open until 8 p.m. on Tuesdays. Stop by any Tuesday evening to use the space, borrow materials, or get help from staff.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 17 words
The library is now open until 8 p.m. on Tuesdays. All other days keep their current hours.
Practice Judge A Judge B Judge C Result
Gemini 3.8 FlashGoogle Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Gemini 3.8 Flash's full page

Without guidance

Sample 1 of 2 · 46 words
We are excited to announce that the library has extended its Tuesday hours and will now remain open until 8:00 PM. Whether you need extra time to study, browse the shelves, or pick up a hold, we look forward to welcoming you later into the evening!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 36 words
We are pleased to announce that the library will now remain open until 8:00 PM every Tuesday. We hope these extended evening hours give you more time to study, browse our shelves, and enjoy our resources!
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 34 words
The library is extending its Tuesday hours and will now remain open until 8:00 p.m. Stop by during these new evening hours to browse books, use computers, or find a quiet place to study.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 32 words
The library is now open until 8:00 p.m. every Tuesday. Stop by to browse the collection, use public computers, or find a quiet place to read and study later into the evening.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 38 words
The library is now open until 8:00 p.m. on Tuesdays to give visitors more time to browse, study, and use resources. Stop by this Tuesday to check out books, access computers, or find a quiet place to work.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 31 words
The library is now open until 8:00 p.m. every Tuesday. Stop by during these extended evening hours to browse the collection, use the computers, or find a quiet place to study.
Practice Judge A Judge B Judge C Result
Gemini 4 ArgonGoogle Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Gemini 4 Argon's full page

Without guidance

Sample 1 of 2 · 41 words
We are excited to announce that the library is extending its Tuesday evening hours to better serve our community! Starting immediately, we will remain open until 8:00 PM every Tuesday, giving you extra time to study, browse, and enjoy our resources.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 38 words
Great news: the library is extending its Tuesday operating hours, and we will now be open until 8:00 PM! We look forward to welcoming you for an extra few hours of evening reading, studying, and browsing each week.
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 29 words
The library is now open until 8:00 p.m. every Tuesday. Stop by in the evening to check out books, use the computers, or find a quiet place to read.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 33 words
Starting this week, the library will stay open until 8:00 p.m. on Tuesdays. Stop by to check out books, use the computers, or enjoy a quiet place to read after work or school.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 31 words
The library is now open until 8:00 p.m. on Tuesdays. Stop by during our extended evening hours to check out books, use the computers, or find a quiet place to read.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 30 words
The library is now open until 8:00 p.m. on Tuesdays. Stop by during the extended evening hours to borrow books, use a computer, or find a quiet place to read.
Practice Judge A Judge B Judge C Result
Gemma 4 31BGoogle Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Gemma 4 31B's full page

Without guidance

Sample 1 of 2 · 28 words
We are pleased to announce that the library will now remain open until 8 p.m. every Tuesday. We look forward to seeing you during these extended evening hours!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 28 words
We are pleased to announce that the library will now remain open until 8 p.m. every Tuesday. We look forward to seeing you during these extended evening hours!
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 17 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you there.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 17 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you there.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 17 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you there.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 17 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you there.
Practice Judge A Judge B Judge C Result
GLM 5.3Z.ai Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
GLM 5.3's full page

Without guidance

Sample 1 of 2 · 50 words
Starting next week, the library will remain open until 8pm on Tuesdays, giving patrons three additional hours to browse, study, and check out materials. We hope this extended evening access makes it easier for everyone to visit after work or school—please stop by and take advantage of the new hours!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 40 words
Good news, library visitors! Beginning this week, the library will now remain open until 8pm on Tuesdays, giving you more time to browse, study, and check out materials. Come by after work or school and enjoy our extended evening hours!
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 23 words
Good news: the library is now open until 8pm on Tuesdays. Stop by after work or school — we'd love to see you.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 23 words
Good news: the library is now open until 8pm on Tuesdays. Come by after work or school — we'd love to see you.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 28 words
Good news: the library is now open until 8pm on Tuesdays. Stop by after work or school — there's more time to browse, read, and use the computers.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 25 words
Good news: the library is now open until 8pm on Tuesdays. Stop by after work or school for extra time to browse, read, or study.
Practice Judge A Judge B Judge C Result
GPT-6 AstraOpenAI Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
GPT-6 Astra's full page

Without guidance

Sample 1 of 2 · 17 words
The library is now open until 8pm on Tuesdays! Stop by and enjoy the extra evening hours.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 20 words
The library is now open until 8pm on Tuesdays! Enjoy extra time to browse, study, and borrow your favorite books.
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 17 words
The library is now open until 8 p.m. on Tuesdays. Stop by to read, study, or browse.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 18 words
The library is now open until 8 p.m. on Tuesdays. Stop by and enjoy the extra evening hours.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 22 words
The library is now open until 8 p.m. on Tuesdays. Stop by to read, study, or borrow something to enjoy at home.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 17 words
The library is now open until 8 p.m. on Tuesdays. Stop by to read, study, or browse.
Practice Judge A Judge B Judge C Result
GPT-6 LunaOpenAI Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
GPT-6 Luna's full page

Without guidance

Sample 1 of 2 · 20 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you later in the day!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 16 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you!
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 16 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 16 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you!
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 16 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 16 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you!
Practice Judge A Judge B Judge C Result
GPT-6.1 SolOpenAI Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
GPT-6.1 Sol's full page

Without guidance

Sample 1 of 2 · 24 words
The library is now open until 8 p.m. every Tuesday! Enjoy extra evening time to browse, study, or pick up your next great read.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 22 words
The library is now open until 8 p.m. every Tuesday! Enjoy extra time to browse, study, or relax with a good book.
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 17 words
The library is now open until 8 p.m. on Tuesdays. Stop by to read, browse, or borrow.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 20 words
The library is now open until 8 p.m. on Tuesdays. Stop by for more time to read, browse, or study.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 22 words
The library is now open until 8 p.m. on Tuesdays. Stop by to browse, study, or borrow something to enjoy at home.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 22 words
The library is now open until 8 p.m. on Tuesdays. Stop by to read, study, or borrow something to enjoy at home.
Practice Judge A Judge B Judge C Result
GPT-6.1 TerraOpenAI Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
GPT-6.1 Terra's full page

Without guidance

Sample 1 of 2 · 17 words
The library is now open until 8 p.m. on Tuesdays. Stop by and enjoy the extended hours!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 16 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you!
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 16 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 15 words
The library is now open until 8 p.m. on Tuesdays. Stop by for a visit!
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 16 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 16 words
The library is now open until 8 p.m. on Tuesdays. We look forward to seeing you!
Practice Judge A Judge B Judge C Result
Grok 4.7xAI Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Grok 4.7's full page

Without guidance

Sample 1 of 2 · 21 words
The library is pleased to announce that Tuesday hours have been extended. We will now remain open until 8pm every Tuesday.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 22 words
The library’s Tuesday hours have been extended and now run until 8pm. We look forward to welcoming you during these later hours.
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 23 words
The library is now open until 8 p.m. on Tuesdays. You can visit, borrow materials, and use library services later on that day.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 23 words
The library is now open until 8 p.m. on Tuesdays. You can visit, borrow materials, and use library services later in the evening.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 28 words
The library is now open until 8 p.m. on Tuesdays. You can visit later in the day to borrow materials, use library services, or ask staff for help.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 22 words
The library is now open until 8 p.m. on Tuesdays. You can visit later in the day for books, computers, and programs.
Practice Judge A Judge B Judge C Result
Kimi K3Moonshot AI Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Kimi K3's full page

Without guidance

Sample 1 of 2 · 39 words
We're excited to announce that the library's Tuesday hours have been extended, and we will now remain open until 8pm. Stop by this Tuesday evening to enjoy extra time for browsing, studying, or picking up your next great read!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 37 words
We're pleased to announce that the library's Tuesday hours have been extended, with doors now staying open until 8pm. Stop by after work or school to enjoy extra evening time for browsing, studying, or using our services.
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 25 words
The library is now open until 8 p.m. on Tuesdays. We hope the later hours make it easier to stop by after work or school.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 22 words
The library's Tuesday hours now run until 8 p.m. Stop by after work or school — we look forward to seeing you.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 26 words
The library is now open until 8 p.m. on Tuesdays. We hope the later hours make it easier to stop by after work, school, or dinner.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 27 words
The library is now open until 8 p.m. every Tuesday. Stop by after work or school — there's more time to browse, study, and use the computers.
Practice Judge A Judge B Judge C Result
Kimi K3.1 ProMoonshot AI Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Kimi K3.1 Pro's full page

Without guidance

Sample 1 of 2 · 28 words
We’re pleased to announce that the library’s Tuesday hours now extend until 8 p.m. Visit us Tuesday evenings and enjoy extra time to study, browse, and borrow materials!
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 24 words
The library’s Tuesday hours now run until 8pm, giving you more time to browse, study, and borrow materials. We look forward to welcoming you!
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 22 words
The library’s Tuesday hours now run until 8 p.m. Stop by Tuesday evening for extra time to read, study, and borrow materials.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 23 words
The library is now open until 8 p.m. on Tuesdays. We hope these extended evening hours make it easier for you to visit.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 26 words
The library is now open until 8 p.m. on Tuesdays. We hope the later hours give you more time to visit, study, and use our services.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 28 words
The library is now open until 8 p.m. on Tuesdays. We hope these extended evening hours make it easier for you to visit, study, and use our services.
Practice Judge A Judge B Judge C Result
Muse WonderMeta Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Muse Wonder's full page

Without guidance

Sample 1 of 2 · 23 words
We are pleased to announce that the library is extending its Tuesday hours. The library will now be open until 8pm on Tuesdays.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 14 words
We have exciting news to share! The library's Tuesday hours now run until 8pm.
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 28 words
Starting this week, the library will be open until 8pm on Tuesdays. You can visit in the evening to borrow books, use the computers, or join a program.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 28 words
The library is now open until 8pm on Tuesdays. You can visit in the evening to borrow books, use a computer, or find a quiet place to study.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 24 words
The library will now be open until 8 p.m. on Tuesdays. You can use this extra time to read, study, and use library services.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 26 words
The library will now be open until 8 p.m. on Tuesdays. This gives you more time in the evening to visit, study, and use library services.
Practice Judge A Judge B Judge C Result
Nemotron 3.5 Super VLNVIDIA Cleannothing to fix 0 of 2over-corrected 0 of 2over-corrected
Nemotron 3.5 Super VL's full page

Without guidance

Sample 1 of 2 · 21 words
The library is now open on Tuesdays until 8:00 p.m. We look forward to seeing you during our extended evening hours.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 21 words
The library is now open on Tuesdays until 8:00 p.m. We look forward to welcoming you during our extended evening hours.
Practice Judge A Judge B Judge C Result

Human-centered guidance

Sample 1 of 2 · 21 words
The library is now open on Tuesdays until 8 p.m. Stop by Tuesday evenings to browse, study, or use the computers.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 23 words
Starting this week, the library is open on Tuesdays until 8 p.m. Come by Tuesday evenings to browse, study, or use a computer.
Practice Judge A Judge B Judge C Result

Trauma-informed guidance

Sample 1 of 2 · 26 words
The library is now open on Tuesdays until 8 p.m. Visit us Tuesday evenings to borrow books, use computers, or find a quiet place to read.
Practice Judge A Judge B Judge C Result
Sample 2 of 2 · 23 words
The library is now open until 8 p.m. on Tuesdays. Stop by after work or school to browse, study, or use a computer.
Practice Judge A Judge B Judge C Result
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