Tracing, prompt management and evals for LLM appsAlternative to
Lunary
Openlayer+2Open source alternatives to Confident AI
2 open source tools do the job of Confident AI. The most starred is Langfuse, with 37.3k stars. Verified on GitHub. About Confident AI
Confident AIFree
Langfuse37.3k stars · MITGitHubAll 2 alternatives
Questions about alternatives to Confident AI
What is the best open source alternative to Confident AI?
By GitHub stars it is Langfuse, with 37,399 stars and a commit on 13 Nov. Choose Langfuse when you want prompt management alongside tracing and evals, self-hosted, with hosted plans from a free Hobby tier. Next come Laminar (3,488 stars).
Is there a free alternative to Confident AI?
Yes. The code of all 2 is public under MIT or Apache 2.0, so you can use them with no licence fee. Running one yourself costs the server and your time to look after it, and some makers also sell a hosted plan.
How do I choose between them?
Start from the job you use Confident AI for. Choose Laminar when you want to trace and analyse agent runs on your own infrastructure, with a free hosted plan as well.
Which Confident AI alternatives can I host on my own server?
All 2: Langfuse and Laminar. Each tool's page says what it needs to run.
Which ones are still being worked on?
All 2 we track had a commit in the last 30 days, among them Langfuse and Laminar. A recent commit shows the project is kept up, not that it will stay that way.
What licences do they use?
MIT (1), Apache 2.0 (1). MIT, BSD and Apache let you change and reuse the code freely.
What do I lose by leaving Confident AI?
The hosting. Confident AI's maker runs the servers for you; with an open source tool the updates, backups, security fixes and support are yours, unless you take the maker's hosted plan. Features differ too, so check what each one imports and exports before you move your data.