# OpenSearch vs parlant

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | OpenSearch | parlant |
|---|---|---|
| Score | 76/100 ✓ | 72/100 |
| Rank in category | #7 of 41 in Search Engines | #22 of 209 in AI Agents |
| GitHub stars | 13 932 | 18 312 ✓ |
| Stars, last 30 days | +157 ✓ | +22 |
| Stable releases, 12 months | 11 ✓ | 5 |
| Latest release | 2.19.7 · 17 Oct 2026 ✓ | v3.3.2 · 28 Apr 2026 |
| Setup | Moderate ✓ | Advanced |
| Official Docker image | Yes ✓ | No |
| License | Apache-2.0 | Apache-2.0 |
| Main language | Java | Python |

## Which one should you pick?

OpenSearch scores 76/100 against 72/100 for parlant, so it is the safer default.

OpenSearch ships more often: 11 stable releases in the past year, against 5 for parlant.

If you want the quickest setup, OpenSearch is easier to run; parlant needs more configuration.

OpenSearch is growing faster right now (+157 stars in 30 days).

## Details

- [OpenSearch](https://selfhost.directory/project/opensearch) (markdown: https://selfhost.directory/project/opensearch.md)
- [parlant](https://selfhost.directory/project/parlant) (markdown: https://selfhost.directory/project/parlant.md)

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Source: https://selfhost.directory/compare/opensearch-vs-parlant