# COCO Caption

COCO Caption is an AI benchmark; this page records what it measures and traces its data, grader, and scores to primary sources.

Evaluates image-caption generation on everyday scenes using reference captions and standardized captioning metrics.

## Details

- Address: Online, Global
- Website: [cocodataset.org/](<https://cocodataset.org/>)
- Tags: Helpful, Science
- Category: Multimodal
- Status: Active
- Data licence: CC-BY-4.0
- Data access: open
- Grader: exact
- Organization: Microsoft
- Released: 2014-05
- Paper: [arxiv.org/abs/1405.0312](<https://arxiv.org/abs/1405.0312>)
- Leaderboard: [cocodataset.org/\#captions-2020](<https://cocodataset.org/#captions-2020>)
- Task count: 330,000
- Top-score provenance: unknown
- ABI family: No

## Questions

### Where is COCO Caption?

COCO Caption is at Online, Global.

### How do I contact COCO Caption?

To contact COCO Caption, visit https://cocodataset.org/.

## Source

From [Benchmark primary sources](https://aibenchmarkindex.com/about), license CC0-1.0, checked 2026-10-15.

Last updated October 15, 2026.

## Links

- This benchmark on the [web page](<https://aibenchmarkindex.com/global/online/coco-caption>)
- [Multimodal in Online](<https://aibenchmarkindex.com/global/online/category/multimodal.md>)
- [More benchmarks in Online](<https://aibenchmarkindex.com/global/online.md>)

> **Check before you compare.** Benchmark methods and leaderboards change. Follow the cited primary source before using a result in a decision.