helicone vs langtrace

Common questions

What is the difference between helicone and langtrace?

helicone: Open source LLM observability platform. langtrace: Open Telemetry based observability tool for LLM applications. See the comparison table for live GitHub stats and shared categories.

When should I choose helicone over langtrace?

Choose helicone over langtrace when License: helicone is Apache-2.0, langtrace is AGPL-3.0; Helicone provides tracking and evaluation of AI agents, a space that overlaps significantly with what Langtrace offers for LLM observability; Tags unique to helicone: agent-monitoring, analytics, evaluation, large-language-models; When you need to monitor and evaluate the performance of large language models in real-time.

When should I choose langtrace over helicone?

Choose langtrace over helicone when License: langtrace is AGPL-3.0, helicone is Apache-2.0; Helicone provides tracking and evaluation of AI agents, a space that overlaps significantly with what Langtrace offers for LLM observability; Tags unique to langtrace: ai, datasets, evaluations, llm; When developing or using LLMs and frameworks where end-to-end visibility into every aspect of model performance is crucial.

When should I avoid helicone?

If your project requires proprietary or closed-source tools, as Helicone is open-source and can be self-hosted. When you need a platform that does not require setting up an API key and modifying your codebase to integrate monitoring. If you are looking for a solution that does not support a wide range of models through a single API, and you prefer platform-specific tools. For users who do not want to manage their own infrastructure, as Helicone offers self-hosting options which require local setup and maintenance.

When should I avoid langtrace?

For teams that do not require real-time tracing and evaluations, as implementing Langtrace might introduce unnecessary overhead. When working with non-LLM AI applications or other machine learning models, Langtrace’s specialized features for large language models may not provide much value.

Is helicone or langtrace more popular on GitHub?

helicone has more GitHub stars (6,162 vs 1,232). Stars measure visibility, not whether either tool fits your constraints.

Are helicone and langtrace open source?

Yes - both are open-source projects on GitHub (helicone: Apache-2.0, langtrace: AGPL-3.0).

Where can I find alternatives to helicone or langtrace?

GraphCanon lists graph-backed alternatives at helicone alternatives and langtrace alternatives (helicone markdown twin, langtrace markdown twin), ranked by typed relationship edges rather than popularity votes.

Is there a machine-readable version of this comparison?

Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.

Which is better maintained, helicone or langtrace?

helicone: Very active. langtrace: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.

Where are the full trust reports for helicone and langtrace?

GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: helicone trust report; langtrace trust report.