LLM observability alternatives

Compare telemetry.dev with other LLM observability products. Each comparison gives the date of its facts and links to its sources.

• Langfuse alternative for traces, logs, and metrics

  telemetry.dev and Langfuse compared on price, usage units, data access, OpenTelemetry support, and self-hosting, with facts checked on October 15, 2026.

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• LangSmith alternative built on OpenTelemetry

  telemetry.dev and LangSmith compared on price, seats, trace retention, OpenTelemetry support, and evaluation, with facts checked on October 15, 2026.

  Read the comparison