# Atomic Chat vs Open Responses

> Two self-hosted [OpenAI API alternatives](https://selfhost.directory/alternative-to/openai-api), compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | Atomic Chat | Open Responses |
|---|---|---|
| Score | 60/100 ✓ | 42/100 |
| Rank in category | #13 of 69 in AI Chat | #95 of 125 in AI |
| GitHub stars | 1 867 ✓ | 236 |
| Stars, last 30 days | — | — |
| Stable releases, 12 months | 3 ✓ | 0 |
| Latest release | v2.2.26 · 23 Oct 2026 | — |
| Setup | Easy ✓ | Moderate |
| Official Docker image | No | Yes ✓ |
| License | Other | Apache-2.0 |
| Main language | Typescript | Go |

## Which one should you pick?

Atomic Chat scores 60/100 against 42/100 for Open Responses, so it is the safer default.

Atomic Chat ships more often: 3 stable releases in the past year, against 0 for Open Responses.

If you want the quickest setup, Atomic Chat is easier to run; Open Responses needs more configuration.

## Details

- [Atomic Chat](https://selfhost.directory/project/atomic-chat) (markdown: https://selfhost.directory/project/atomic-chat.md)
- [Open Responses](https://selfhost.directory/project/open-responses) (markdown: https://selfhost.directory/project/open-responses.md)

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Source: https://selfhost.directory/compare/atomic-chat-vs-open-responses