Langfusevsscalar
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Langfuse | scalar | |
|---|---|---|
| Score | 86/100 | 76/100 |
| Rank in category | #9 of 125 in AI | #3 of 13 in API |
| GitHub stars | 36 658 | 16 335 |
| Stars, last 30 days | +1 675 | +156 |
| Stable releases, 12 months | 161 | 46 |
| Latest release | v4.71.0 · 27 Oct 2026 | release-2026-10-28-0d01943 · 28 Oct 2026 |
| Setup | Advanced | Easy |
| Official Docker image | Yes | Yes |
| License | Other | MIT |
| Main language | Typescript | Typescript |
Which one should you pick?
Langfuse scores 86/100 against 76/100 for scalar, so it is the safer default.
Langfuse ships more often: 161 stable releases in the past year, against 46 for scalar.
If you want the quickest setup, scalar is easier to run; Langfuse needs more configuration.
Langfuse is growing faster right now (+1 675 stars in 30 days).
Langfuse details →scalar details →
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