Benchmark Almanac

COCO

In use

Models detect and locate objects in everyday photos from the Microsoft COCO dataset. Scored by mean average precision over box overlap thresholds.

Qwen reports it under visual grounding without stating its exact protocol.

Released
May 2014
Kind
Detection and captioning
Level
Everyday
Scored
Checked automatically
Answers
Short answer
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

We present a new dataset with the goal of advancing the state-of-the-art in object recognition by placing the question of object recognition in the context of the broader question of scene understanding. This is achieved by gathering images of complex everyday scenes containing common objects in their natural context. Objects are labeled using per-instance segmentations to aid in precise object localization. Our dataset contains photos of 91 objects types that would be easily recognizable by a 4 year old. With a total of 2.5 million labeled instances in 328k images, the creation of our dataset drew upon extensive crowd worker involvement via novel user interfaces for category detection, instance spotting and instance segmentation. We present a detailed statistical analysis of the dataset in comparison to PASCAL, ImageNet, and SUN. Finally, we provide baseline performance analysis for bounding box and segmentation detection results using a Deformable Parts Model.

Abstract of Microsoft COCO: Common Objects in Context (arXiv:1405.0312, CC0)
1
Model scored in lab cards
1
Launch post lists it, from 1 lab

Qwen 3.8 Max leads with 78.7%

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 78.7%

Source: Labs’ model cards

#ModelScoreSettingDateSource
1 Qwen 3.8 Max 78.7% Aug 2026 Lab model card

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
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 78.7 COCO

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