LangWatch
8.2#4 in ai agent observability toolsFrom €29 a monthFree planWebAPILinuxmacOS
VisitLangWatch vs OpenLIT
What both publish
| Fact | LangWatch | OpenLIT |
|---|---|---|
| Company headquarters | LinkedIn lists headquarters at Herengracht 551, Amsterdam, Netherlands. | Crunchbase places OpenLIT in New Delhi, Delhi, India. |
| Company legal name | Crunchbase identifies the operating legal entity as Reasoning Engine B.V. | Crunchbase lists the legal name as OpenLIT and operating status as active. |
| Company size | LinkedIn lists the company size as 11–50 employees. | Crunchbase lists the company size as 1–10 employees. |
| Deployment | LangWatch offers managed cloud, self-hosted, and hybrid deployment; its pricing page says self-hosting uses Docker Compose and the customer's ClickHouse. | The platform can be self-hosted using Docker Compose or Kubernetes Helm and accepts OpenTelemetry data through OTLP. |
| Evaluations | The platform supports offline and online evaluations, CI/CD gates, multimodal scoring, built-in evaluators and custom workflows. | OpenLIT includes built-in evaluations, programmatic evaluations and LLM-as-a-judge workflows that can run locally or in CI. |
| Integrations | Official integrations cover OpenAI, Anthropic, Google Gemini, Bedrock, Azure OpenAI, Vertex AI, Groq, Ollama and LiteLLM. | The home page advertises more than 56 integrations spanning LLMs, agent frameworks, vector databases and GPUs. |
| Licence | The core platform is Apache 2.0; enterprise modules require a commercial production licence and the SDKs are MIT licensed. | The project is licensed under Apache License 2.0. |
| Prompt management | Prompts can be versioned through code, UI and API, templated with Liquid, synced with GitHub and compared in experiments. | Prompt Hub provides prompt versioning, dynamic variables, API retrieval and AI-assisted prompt improvement. |
| Rating on G2 | 0.0 out of 5 from 0 reviews | 5.0 out of 5 from 1 review. |
| Self-hosting | Self-hosting is available with a Node.js command for local use and Docker, Kubernetes/Helm or VPC deployment options. | Docker Compose runs the UI on port 3000, OTLP receivers on ports 4317 and 4318, and ClickHouse for traces, metrics and logs; Kubernetes Helm deployment is also documented. |
| Support | Developer users receive GitHub and Discord community support, while Growth includes private Slack or Teams support. | The OSS plan includes community support on GitHub. |
| System requirements | The self-host command requires Node.js 24 or newer on macOS or glibc-based Linux. | The local sandbox requires Docker and Docker Compose; Kubernetes users install the published Helm chart. |
LangWatch plans
- DeveloperFree
- Growth€29 a month
- EnterprisePriced on request
OpenLIT plans
- OSSFree
- CloudPriced on request
Pick LangWatch if…
LangWatch suits AI teams shipping agents, including developers, product owners, QA, and domain experts working on evaluation workflows. Teams can choose managed cloud, self-hosted, or hybrid deployment.
Pick OpenLIT if…
OpenLIT may suit developers who need LLM tracing, evaluations, prompt workflows and cost visibility. It is especially relevant to those who want to self-host and keep prompts and traces in their environment.