Benchmark Almanac

LVBench (with memory)

In use

Models answer multiple-choice questions about videos up to two hours long, aided by Qwen's external video memory system. Scored by accuracy.

A Qwen setting of LVBench that uses a memory system built with Qwen-MM-Plugins, so scores are not comparable with plain LVBench.

Released
August 2026
Kind
Long videos
Level
Everyday
Scored
Checked automatically
Answers
Multiple choice
Tasks
All public
Strongest model tested
Qwen 3.8 Max #29 on the capability index
Last in a launch post
August 2026
Last model added
August 2026

In the authors’ words

Recent progress in multimodal large language models has markedly enhanced the understanding of short videos (typically under one minute), and several evaluation datasets have emerged accordingly. However, these advancements fall short of meeting the demands of real-world applications such as embodied intelligence for long-term decision-making, in-depth movie reviews and discussions, and live sports commentary, all of which require comprehension of long videos spanning several hours. To address this gap, we introduce LVBench, a benchmark specifically designed for long video understanding. Our dataset comprises publicly sourced videos and encompasses a diverse set of tasks aimed at long video comprehension and information extraction. LVBench is designed to challenge multimodal models to demonstrate long-term memory and extended comprehension capabilities. Our extensive evaluations reveal that current multimodal models still underperform on these demanding long video understanding tasks. Through LVBench, we aim to spur the development of more advanced models capable of tackling the complexities of long video comprehension. Our data and code are publicly available at: https://lvbench.github.io.

Abstract of LVBench: An Extreme Long Video Understanding Benchmark (arXiv:2406.08035, CC0)
1
Model scored in lab cards
1
Launch post lists it, from 1 lab

Qwen 3.8 Max leads with 85.6%

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.

  1. 1 Qwen 3.8 Max 85.6%

Source: Labs’ model cards

#ModelScoreSettingDateSource
1 Qwen 3.8 Max 85.6% Aug 2026 Lab model card

Qwen’s own number for Qwen 3.8 Max passed 85% in August 2026

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
0% 20% 40% 60% 80% 100% Near the ceiling (85%) Qwen 3.8 Max 0% 20% 40% 60% 80% 100% Near the ceiling (85%) Qwen 3.8 Max

Source: Labs’ model cards

One lab put it in a launch post in the last six months

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.

Qwen
DateLaunch postScoreAs the post writes it
Aug 3, 2026 Qwen 3.8 Max 85.6 LVBench (w/ Mem.)

More in Audio and video

All 233 in Audio and video
  • Video-MMMU In use 300 expert-level lecture videos with questions testing perception, comprehension and adaptation of knowledge. Accuracy. Qwen 3.8 Max 88.7%
  • LVBench In use Hours-long video understanding with multiple-choice questions on reasoning, grounding and summarization. Gemini 4 Argon 91.7%
  • MMVU In use 3,000 expert-annotated questions on videos across 27 disciplines. Multiple-choice and open-ended accuracy. Qwen 3.8 Max 82.4%
  • MLVU In use Multi-task long video understanding (minutes to hours) with multiple-choice and generation tasks. Accuracy. Qwen 3.8 Max 90.8%
  • FLEURS In use Models transcribe read speech in 102 languages built from FLoRes-101 sentences. Model cards usually report word error rate, so lower scores are better. Phi-4-multimodal 4.00%
  • VoiceBench In use Spoken instructions with speaker, environment and content variation. Voice assistant responses scored by GPT judge or rules. Qwen3.5-Omni-Plus 93.1%