OpenTelemetry and Prometheus are both open-source, but they can have a significant difference in how your cloud application functions. While OpenTelemetry is ideal for cloud-native applications and focuses on monitoring and improving application performance, Prometheus prioritizes reliability and accuracy.

So, which one is the ideal option for your observability needs? The answer to this question is not as straightforward as you might expect. Both OpenTelemetry and Prometheus have their own strengths and weaknesses, catering to different needs and priorities.