Traceloop alternatives
Compare Traceloop alternatives after its ServiceNow announcement. Explore Lunary, Arize Phoenix and Langfuse for AI observability and review.
$20 per user / month. Payment required to activate your workspace.
Choose Lunary when you want OpenTelemetry-compatible observability with a conversation-review workflow for your application team.
Lunary
Our pick for replaying chats and understanding user feedback.
Arize Phoenix
Consider for OpenInference tracing and experiments.
Langfuse
Consider for traces linked to managed prompt versions.
At a glance
| Candidate | Choose it for | What to weigh |
|---|---|---|
| Lunary | Conversation replay and application feedback | Validate OTel mappings and message links |
| Arize Phoenix | OpenInference traces and experiments | Check instrumentation and evaluation workflow |
| Langfuse | Tracing with prompt version management | Test prompt rollout and review process |
| Traceloop | OpenLLMetry, monitors and prompt registry | Confirm current terms following ServiceNow announcement |
See your workflow in Lunary.
Explore conversations, traces and prompt versions with our team.
Separate instrumentation from the platform
Traceloop uses OpenLLMetry and OpenTelemetry. Lunary also accepts OpenTelemetry traces, so assess your existing attributes before rewriting instrumentation. You still need to validate mappings and add the conversation context your review workflow requires.
Give the trace a customer story
Lunary connects chat messages, custom events and feedback with model and agent runs. For teams owning an assistant’s behavior, replaying the interaction helps turn an unexplained error or poor answer into a specific prompt-review task.
Check the platform you intend to buy
Traceloop announced it is joining ServiceNow and said it intends to continue selling its functionality. Phoenix and Langfuse offer other tracing workflows. Pilot Lunary on one conversation and compare how easily your team reaches an actionable diagnosis.
Questions & answers
Is OpenLLMetry being discontinued?
Traceloop’s announcement says OpenLLMetry will remain open source. It does not announce an end to the SDK.
Can Lunary ingest OpenTelemetry?
Yes. Lunary documents OTLP ingestion and OpenLLMetry-compatible instrumentation. Verify your emitted fields and trace relationships in a pilot.
Does Traceloop support conversations?
Yes. It documents sessions that group multi-turn traces, plus user feedback through annotation tasks.
By Lunary · Documentation reviewed Sep 20, 2026
Sources & methodology (12)
Based on vendor documentation, not an independent benchmark or hands-on rating. Features and plans can change.
Bring your next AI issue to Lunary.
Follow the conversation. Find the cause. Test the fix.
$20 per user / month. Payment required to activate your workspace.