Traceloop
Traceloop captures language model prompts, responses and latency, runs builtin and custom evaluations, and ships an open-source SDK (OpenLLMetry). It provides cloud, on‑prem, and air‑gapped deployment options, a Free Forever tier with limits, and marketplace purchase paths for production observability.
The pricing page documents a Free Forever tier showing "$0 / mo" with limits and an Enterprise tier that requires contacting sales; marketplace purchasing on AWS, GCP, and Azure is noted. The linked official pages do not publish specific enterprise dollar prices or per‑span overage rates.Is Traceloop right for you?
Good for
- Engineering teams needing quick instrumentation and continuous evaluation of language model calls integrated with existing observability stacks.
- One-line instrumentation to get live visibility into prompts, responses and latency, enabling fast start of observability.
- Built on OpenTelemetry and distributed with an open-source SDK (OpenLLMetry) to integrate with existing observability tools and avoid lock-in.
Keep in mind
- The Free tier documents 24 hours of data retention, which constrains long-term log storage for forensic or trend analysis.
- The pricing page shows a Free tier line limiting seats to five, but an FAQ on the same page contradicts that by saying there is no seat limit.
- Buyers who require published enterprise dollar pricing, per‑span overage rates, or clarified seat limits in public docs before procurement; those items require vendor confirmation.
Pricing and plan limits
The linked official pages show a Free Forever plan and an Enterprise contact option; they do not list numeric enterprise prices or per‑span overage charges in the available information. The pages also reference a "Free 14-day Trial" but do not clarify how that trial differs from the Free Forever offering.
More about capabilities and limits
Documented strengths
One-line instrumentation to get live visibility into prompts, responses and latency, enabling fast start of observability.
Built on OpenTelemetry and distributed with an open-source SDK (OpenLLMetry) to integrate with existing observability tools and avoid lock-in.
Limitations to consider
The Free tier documents 24 hours of data retention, which constrains long-term log storage for forensic or trend analysis.
The pricing page shows a Free tier line limiting seats to five, but an FAQ on the same page contradicts that by saying there is no seat limit.
Choosing a plan
Instrument a representative subset of language model calls using the Free tier to measure spans and retention needs, then discuss enterprise retention SLAs and pricing with Traceloop or the marketplace listing.
Based on the linked product documentation.
Available on
Web.
Official sources
Alternatives to Traceloop
Choose around the work you need to do.
Langfuse
Trace model requests, manage prompts, inspect costs and latency, and run evaluations with an open-source, self-hostable observability platform that integrates into existing stacks for production monitoring.
