Benchmark Almanac

Qasper

Phi-3.5-mini 41.9% leads since Aug 2024 Dropped

Models answer 5,049 questions about 1,585 NLP research papers from the full paper text. Answers are scored with token F1.

In the authors’ words

Readers of academic research papers often read with the goal of answering specific questions. Question Answering systems that can answer those questions can make consumption of the content much more efficient. However, building such tools requires data that reflect the difficulty of the task arising from complex reasoning about claims made in multiple parts of a paper. In contrast, existing information-seeking question answering datasets usually contain questions about generic factoid-type information. We therefore present QASPER, a dataset of 5,049 questions over 1,585 Natural Language Processing papers. Each question is written by an NLP practitioner who read only the title and abstract of the corresponding paper, and the question seeks information present in the full text. The questions are then answered by a separate set of NLP practitioners who also provide supporting evidence to answers. We find that existing models that do well on other QA tasks do not perform well on answering these questions, underperforming humans by at least 27 F1 points when answering them from entire papers, motivating further research in document-grounded, information-seeking QA, which our dataset is designed to facilitate.

Abstract of A Dataset of Information-Seeking Questions and Answers Anchored in Research Papers (arXiv:2105.03011, CC0)
Made by Allen Institute for AI (AI2) Released May 2021 Reasoning over long documents All tasks public Last in a launch post Aug 2024 , dropped before it saturated Last model added Mar 2025
Level
University Undergraduates and entry-level professionals
Scored
Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
Answers
Short answer A number, word or short string matched to a key.
3
Models scored in lab cards
1
Launch post lists it, from 1 lab
6
System cards report it, from 2 labs

Phi-3.5-mini leads with 41.9% among models released by Feb 2025

Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.

The newest model with a score here came out in Feb 2025, and nobody has reported a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 Phi-3.5-mini 41.9%
  2. 2 Phi-4 Mini 40.4%
  3. 3 Phi-3.5-MoE 40%
#ModelScoreSettingDateSource
1 Phi-3.5-mini 41.9% Aug 2024 Model card
2 Phi-4 Mini 40.4% Mar 2025 Model card
3 Phi-3.5-MoE 40% Aug 2024 Model card

2 models have held number one since 2023

Lab claims count from the day the card came out, independent runs from the model’s release.

Microsoft
Lab claims Not tested since Mar 2025
Phi-3.5-mini 41.9%

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

Reported by the lab in its model card Best so far
0% 20% 40% 60% 80% 100% 2025 Near the ceiling (85%) Phi-3.5-mini 0% 20% 40% 60% 80% 100% 2025 Near the ceiling (85%) Phi-3.5-mini

No launch post has listed it since Aug 2024

Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.

Microsoft
DateLaunch postScoreAs the post writes it
20 Aug 2024 Phi-3.5-MoE 40 Qasper

6 system cards report it, from 2 labs

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
3 Mar 2025 Phi-4 Mini technical report 40.4 Qasper (0-shot) (Table 7) Capabilities
23 Nov 2024 Llama 3.1-8B technical report 39.3 ZeroSCROLLS/Qasper, F1, validation set, post-trained (Table 21) Capabilities
23 Nov 2024 Llama 3.1-70B technical report 49 ZeroSCROLLS/Qasper, F1, validation set, post-trained (Table 21) Capabilities
23 Nov 2024 Llama 3.1-405B technical report 49.8 ZeroSCROLLS/Qasper, F1, validation set, post-trained (Table 21) Capabilities
30 Aug 2024 Phi-3.5-MoE technical report 40 Qasper (Table 3) Capabilities
30 Aug 2024 Phi-3.5-mini technical report 41.9 Qasper (Table 3) Capabilities

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  • LongBench v2 In use 503 multiple-choice questions over 8K-2M-word contexts (QA, dialogue, code repos, structured data). Accuracy. Beam 1.0 66.9%
  • GraphWalks In use A graph is given as an edge list in long context. The model answers BFS or parent queries, scored by F1. Claude Fable 5 100%
  • OpenAI MRCR v2 In use Models read a long synthetic chat that hides 2, 4 or 8 identical writing requests and must reproduce the response to the i-th one. Scored by mean string match ratio per context bin. K-EXAONE 2.0 94.4%
  • CL-bench In use Model must learn new knowledge from a supplied long context (rules, procedures, data) and solve tasks. Strict LLM-verified rubrics. GPT-5.4 27.9%
  • AA-LCR 1.1 In use Models answer 100 questions that need reasoning across sets of real documents of about 100K tokens. An LLM equality checker with a fixed system prompt compares each answer with the key. Step 5 Preview 88.3%