LangWatch Alternatives
LLM observability platform with quality monitoring, guardrails, and evaluation workflows
LangWatch is an LLM observability platform focused on quality monitoring and guardrails for AI applications.
Explore 46 alternatives to LangWatch across 1 category. Updated September 2026.
Top LangWatch alternatives at a glance
- Langfuse. Traces, evals, prompt management and metrics to debug and improve your LLM application.
- Comet Opik. Comet provides an end-to-end model evaluation platform for AI developers.
- Weights & Biases. ML experiment tracking, LLM observability, and evaluation platform for AI teams
- Arize AI. AI observability platform with tracing, evaluation, and monitoring for LLM and ML applications
- Traceloop. Open-source LLM observability built on OpenTelemetry, with automatic instrumentation for major providers and frameworks
Compare LangWatch with its alternatives
| Product | Pricing Model | Free Tier | Open Source | Hosting | HQ |
|---|---|---|---|---|---|
| LangWatch | Freemium | ✓ | ✓ MIT | Cloud + Self-hosted | 🇳🇱 Netherlands |
| Langfuse | Freemium | ✓ | ✓ MIT | Cloud + Self-hosted | 🇩🇪 Germany |
| Comet Opik | Freemium | ✓ | ✓ APACHE2 | Cloud + Self-hosted | 🇺🇸 United States |
| Weights & Biases | Freemium | ✓ | — | Cloud + Self-hosted | 🇺🇸 United States |
| Arize AI | Freemium | ✓ | ✓ ELASTIC-2.0 | Cloud + Self-hosted | 🇺🇸 United States |
| Traceloop | Freemium | ✓ | ✓ | Cloud + Self-hosted | 🇺🇸 United States |
| Helicone | Freemium | ✓ | ✓ APACHE2 | Cloud + Self-hosted | 🇺🇸 United States |
| Agenta | Freemium | ✓ | ✓ MIT | Cloud + Self-hosted | 🇩🇪 Germany |
| Log10 | — | ✓ | — | — | 🇺🇸 United States |
| Weckr | Freemium | ✓ | ✓ MIT | Cloud | 🇸🇪 Sweden |
| Laminar | Freemium | ✓ | ✓ | Cloud + Self-hosted | — |
| LangSmith | Freemium | ✓ | — | Cloud + Self-hosted | 🇺🇸 United States |
| Sentrial | Freemium | ✓ | — | Cloud | 🇺🇸 United States |
| Telemetry | Freemium | ✓ | — | Cloud | 🇺🇸 United States |
| The Context Company | Freemium | ✓ | — | Cloud | 🇺🇸 United States |
| Dunetrace | — | ✓ | ✓ | Self-hosted | 🇩🇪 Germany |
📊 Observability & Analytics
Comet Opik
Comet provides an end-to-end model evaluation platform for AI developers.
Agenta
Open-source prompt management, evaluation, and observability for LLM apps
Laminar
Open-source agent observability with traces, failure detection and evals
Dunetrace
Runtime reliability and failure detection for AI agents
RAGAS
Open-source evaluation and testing framework for LLM and RAG applications
Braintrust
Stop building AI in the dark.
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