OpenLLMetry vs LangWatch
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
OpenLLMetry
Open-source OpenTelemetry tracing for LLM apps
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LangWatch
OpenTelemetry-native LLMOps for tracing, evals and agent simulation
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| RECATOOLS Score | 7 / 10 | 7.5 / 10 |
| Capability | ||
| Value for money | ||
| Ease of use | ||
| ASEAN readiness | ||
| API quality | ||
| Pricing | Open Source | Freemium |
| Free tier | OpenLLMetry is free and open source (Apache-2.0); Traceloop's hosted free tier covers up to 50K spans a month with 24-hour retention | Developer: free forever, 50k events/mo, 14-day data, 2 users, 3 scenarios/simulations/custom evals. Self-hosting free under Apache 2.0 |
| Paid from | — | Growth €29 (US$34) per core seat/mo + €5 per 100k events beyond 200k |
| Has API | ✓ | ✓ |
| Open source | ✓ | ✓ |
| Free to use | ✓ | ✓ |
| Users | — | — |
| Founded | 2023 | — |
| Maker | ServiceNow | Independent (LangWatch Reasoning Engine B.V.) |
| Verdict | OpenLLMetry is the sensible default if you already run OpenTelemetry: a pip install and one init line, and your LLM calls show up as standard spans in the backend you already use. Coverage of providers, vector databases... |
LangWatch has become a genuinely open-source LLMOps platform, with strong agent simulation, evaluation and gateway features and generous self-hosting terms. Its pricing advantage over rivals is argued in its own blog rat... |
| Full review → | Full review → |
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Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.