Benchmark
Benchmarks
How progress was measured, and when each measure stopped working.
- Terminal-Bench2025
Tasks done in a shell: build, debug, configure, train. The benchmark for coding agents in a terminal.
- METR time horizon2025
The length of task, in human hours, that a model completes half the time. Doubling about every seven months.
- ARC-AGI-22025
Harder grid puzzles. Frontier models scored in single digits at launch while people solved most of them.
- Humanity's Last Exam2025
3,000 expert questions across 100 subjects. Built to be the last academic benchmark.
- FrontierMath2024
Research-level maths problems written by mathematicians, kept private. Under 2% at launch; o3 reported 25% a month later.
- SimpleQA2024
4,326 short fact questions with one right answer each. Measures how often a model makes things up.
- SWE-bench Verified2024
500 SWE-bench tasks checked by people so the tests are fair. The number labs quote for coding agents.
- τ-bench2024
Agents serving simulated customers in retail and airline settings, with rules to follow and a database to change.
- MMLU-Pro2024
MMLU with ten choices, harder questions and the errors removed.
- LiveBench2024
New questions every month from recent sources, so training data cannot contain the answers.
- OSWorld2024
369 tasks in real Ubuntu, Windows and macOS desktops for computer-use agents.
- MMMU2023
11,500 college-level questions with images, across 30 subjects. The multimodal MMLU.
- GPQA2023
Google-proof PhD-level science questions. Frontier models passed experts in 2025.
- GAIA2023
466 questions that need tools, browsing and several steps. People score 92%; the first agents scored 15%.
- SWE-bench2023
Fix real GitHub issues in real repositories. The coding-agent benchmark. From 2% in 2023 to above 70% on Verified in 2025.
- WebArena2023
812 tasks on self-hosted websites for browsing agents. 14% at launch.
- Open LLM Leaderboard2023
Hugging Face's public ranking of open models on a fixed set of evals. Retired in 2025 after the evals saturated.
- MT-Bench2023
80 multi-turn questions judged by GPT-4. Showed that a strong model can grade chat quality about as well as people.
- Chatbot Arena (LMArena)2023
Anonymous pairwise votes from millions of users, ranked by Elo. The leaderboard labs watch.
- HELM2022
Stanford's framework that scores models on many scenarios and many metrics at once, not one number.
- BIG-bench Hard2022
The 23 BIG-bench tasks where models still trailed people. Chain of thought closed most of the gap.
- BIG-bench2022
204 tasks contributed by 450 authors. BIG-bench Hard is the subset that still matters.
- GSM8K2021
Grade-school maths word problems. The reasoning benchmark of 2022 and 2023.
- TruthfulQA2021
817 questions people get wrong because of false beliefs. Bigger models were less truthful at first.
- MBPP2021
974 short Python tasks written by crowd workers. The companion to HumanEval.
- HumanEval2021
164 Python functions from docstrings. The code benchmark until SWE-bench.
- MATH2021
12,500 competition problems with step-by-step solutions. 7% in 2021, above 90% for reasoning models in 2024.
- MMLU2020
57 subjects, multiple choice. GPT-4 scored 86% in 2023. Saturated by 2024.
- ARC-AGI2019
Chollet's grid puzzles that need no knowledge, only abstraction. The o3 model reached 87% in December 2024. ARC-AGI-2 followed in 2025.
- WinoGrande2019
44,000 Winograd-style pronoun problems, filtered to remove the shortcuts models used.
- SuperGLUE2019
Harder successor to GLUE. Saturated by 2021.
- HellaSwag2019
Pick the sentence that follows. Adversarially filtered so models scored 48% while people scored 95%. Saturated by 2023.
- MLPerf2018
Industry benchmark for training and inference speed on fixed workloads. The scoreboard for chips and clusters.
- GLUE2018
Nine language understanding tasks. BERT beat the human baseline in 2019.
- Atari 57 (Arcade Learning Environment)2013
57 Atari 2600 games as a reinforcement learning benchmark. DQN played them from pixels in 2013; Agent57 beat the human baseline on all of them in 2020.
- Winograd Schema Challenge2012
Pronoun puzzles that need common sense, proposed as a replacement for the Turing test. GPT-3 reached 89% in 2020.
- ImageNet Challenge (ILSVRC)2010
The yearly image classification contest, 2010 to 2017. AlexNet in 2012, ResNet in 2015. Machines passed human accuracy in 2015.
- WMT shared tasks2006
The yearly translation contest. Statistical systems until 2015, neural ones after. Google's 2016 system was judged on it.
- BLEU2002
N-gram overlap with reference translations. The machine translation score for twenty years, and still reported.