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    Helicone Review and verdict 2026

    LLM observability: costs, latency, prompts, logs, and monitoring.

    Helicone

    ToolTrim Verdict
    4.5/5
    Must-have

    Helicone was standard for LLM observability; since Mintlify acquisition (March 2026), prefer active alternatives.

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    Pricing verified on

    Practical uses

    • Track LLM API costs in production.
    • Monitor latency and errors.
    • A/B test models and prompts.

    Pros and cons

    What Helicone does especially well — and the limits to anticipate.

    Pros

    • Open-source (MIT) for self-hosting.
    • Gateway pass-through (300+ models).
    • Detailed cost tracking.
    • Caching and optimizations.

    Cons

    • Project in maintenance mode since March 2026.
    • Reduced team post-acquisition.
    • More active alternatives emerging.

    Helicone: when it makes sense.

    Helicone was standard for LLM observability; since Mintlify acquisition (March 2026), prefer active alternatives.

    Keep if

    You deploy LLM apps to production.. You want to track costs and performance.

    Challenge if

    You don't have an LLM app deployed.. The Helicone project is in maintenance (since March 2026).

    Our verdict on Helicone.

    Why this verdict

    Must-have

    Helicone is hard to replace short-term, a free tier to test before paying, clearly documented use cases.