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Helicone vs Langfuse: catalog facts
Helicone	Langfuse
Freemium Hosted plans start with a 7-day free trial and no credit card; the open-source code can be…	Freemium Open source for self-hosting, with a hosted version that can be started for free.
Web, Self-hosted	Web, Self-hosted
Logs and analyses LLM requests in one place Tracks costs across providers	Tracing, prompt management and evaluation in one tool Can be self-hosted or used as a hosted service
Recently joined Mintlify, so its roadmap is uncertain Hosted version is a paid service after the trial	Requires instrumenting your application with its SDK Self-hosting means running and maintaining the server yourself
Self-hosted, Hosted service	Self-hosted, Hosted service
Open source	Open source
License: Apache-2.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.