# LibriSpeech

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

Measures automatic speech recognition on roughly 1,000 hours of English audiobook speech.

## Details

- Address: Online, Global
- Website: [www.openslr.org/12](<https://www.openslr.org/12>)
- Tags: Helpful, Science
- Category: Voice
- Status: Active
- Data licence: CC-BY-4.0
- Data access: open
- Grader: exact
- Organization: OpenSLR
- Released: 2015-04
- Top-score provenance: unknown
- ABI family: No

## Questions

### Where is LibriSpeech?

LibriSpeech is at Online, Global.

### How do I contact LibriSpeech?

To contact LibriSpeech, visit https://www.openslr.org/12.

## 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/librispeech>)
- [Voice in Online](<https://aibenchmarkindex.com/global/online/category/voice.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.