The best Helicone alternatives & competitors, compared

In March 2026, Mintlify acquired Helicone, placing the platform in maintenance mode, which means it will continue to function with updates for security and model support but will not have any new feature developments or allow new signups. Current users are not immediately affected, but those evaluating tools for new projects may need alternatives, as Helicone's lack of new features becomes a significant limitation in the rapidly evolving AI observability space. This change has prompted discussions about suitable replacements, with options like PostHog, Portkey, Langfuse, LangSmith, Arize Phoenix, and Braintrust offering various features such as SDK-based instrumentation, tracing, prompt management, and evaluation capabilities. Each alternative brings different strengths, such as PostHog's integration with product analytics, Portkey's familiar proxy-based approach, and Arize Phoenix's open-source observability, which are tailored to different user needs and project requirements. The decision to migrate would depend on the specific needs of the user, the desired level of integration with existing workflows, and the importance of ongoing feature development and support.

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