LLM Test Prompts

Sources and licences

Every prompt links to the exact upstream file or post, pinned to the commit we read. Where the licence allows reuse (CC0, MIT, Apache-2.0, CC BY-NC-SA) we quote the full text with credit. Where there's no licence, or the licence attaches conditions to copies, we show only a short excerpt with our own summary and link to the original.

SourcePromptsAuthorLicenceHow we use it
Arnie936 / llm-prompting-tests22Arnie (GitHub @Arnie936)No license file (all rights reserved)The quality bar for this library. There's no license, so we show a short excerpt, our own summary and grading notes, and link to the exact prompt.
KCORES LLM Arena4karminski (KCORES team)KCORES License 1.0 (custom: copies must carry the full licence text and public source)Each test comes with a published point-by-point scoring rubric. The licence attaches conditions to copies, so we link to the full prompt and summarise the rubric in our own words.
KCORES prompt collection (gist)3karminski-牙医CC BY-NC-SA 4.0Quoted in full with attribution for non-commercial use. The English translations are ours (BranoLabs), marked as translations and shared under the same licence.
LocalLLM_VisualCodeTest3David Harris (GitHub @electricazimuth)No license file (all rights reserved)Built for testing local models through llama.cpp or KoboldCpp, with published side-by-side results. No license, so excerpt plus link.
flight-combat-llm-comp2Alexandru Vasile (GitHub @AlexTzk)No license file (all rights reserved)The same prompts run on 9 local MLX models, with the outputs published next to them. No license, so excerpt plus link.
Misguided Attention16GitHub @cpldcpu and contributorsCC0 1.0Public-domain dedication, quoted in full. Only prompts from the public README: the author keeps the longer eval set scrambled to limit training contamination, and we respect that.
SimpleBench (public sample)4SimpleBench teamMITQuoted in full under MIT with the official answer key. Only 10 questions are public; the real benchmark is private.
IFEval (Instruction-Following Eval)4Google Research (Zhou et al., 2023)Apache-2.0Quoted in full under Apache-2.0. Every constraint is machine-checkable; this site's checker runs similar checks in your browser.
Berkeley Function Calling Leaderboard (BFCL)2Gorilla team, UC BerkeleyApache-2.0Question, function schemas and ground truth from the BFCL data files under Apache-2.0. Our change: wrapped into one copy-paste prompt for chat apps without a tool API.
Pelican on a bicycle1Simon WillisonNo explicit license; one-sentence prompt quoted as a citationA single sentence, quoted with attribution.
Spinning hexagon (X post)1Flavio Adamo (@flavioAd)No explicit license; two-sentence prompt quoted as a citationThe viral o3-mini vs DeepSeek R1 test from 31 Jan 2025, quoted with attribution.

Looked at and left out

Quality over quantity: these didn't make it, and here's why.

Source or promptWhy not
KCORES Snake Pit testUnfinished: its scoring table is a copy of the solar-system rubric, so there is no valid way to grade it.
AlexTzk bug-hunt taskGood idea, but there's no published list of the planted bugs, so we can't give a verified answer key.
Misguided Attention long eval set (52 prompts)The author scrambles it on purpose to keep it out of training data. Publishing it in clear text would undo that.
Misguided Attention: Knights and Knaves (Easy)Two assignments are consistent (A knight and B knave, or the reverse), so 'determine who is who' has no single answer.
Misguided Attention: poisoned hot tea, Not from HanoiNo single correct answer, or wording too ambiguous to grade fairly.
BFCL parallel_multiple_3 (rectangle with perimeter 14 and area 15)No real rectangle has those values (l + w = 7 and l × w = 15 has no real solution), yet the ground truth expects plain calls. A careful model gets marked wrong.
EQ-Bench Creative Writing v3 promptsNo licence file, and grading relies on a judge model rather than criteria you can check yourself.
AidanBenchNo licence; open-ended questions scored by embeddings and a judge model, with no expected answers.
lechmazur confabulations and NYT Connections benchmarksNo licence, and they need their document sets or harness; they aren't copy-paste prompts.
Needle in a haystack (gkamradt)Licence not stated, and it needs generated long documents rather than a single prompt.
SnitchBenchMIT and interesting, but it needs a tool-calling harness and multi-turn runs. A candidate once we add harness-based tests.
scka-de/vibe-coding-art, magiruuvelvet/llm-promptsSystem prompts for generating art or for daily use, not tests with grading criteria.
Generic 'write Snake / Tetris / a todo app' promptsSo common in training data that almost every model passes; they no longer tell models apart.
electricazimuth heptagon, chicken, fireworks and light-show promptsCovered by stronger versions already in the library (KCORES heptagon) or less discriminating than the three we kept.

Are you an author and want a prompt changed, credited differently or removed? Use the bug link in the footer and we'll fix it quickly.