LangWatch
8.2#4 in ai agent observability toolsFrom €29 a monthFree planWebAPILinuxmacOS
VisitLangWatch vs Opik
What both publish
| Fact | LangWatch | Opik |
|---|---|---|
| Documentation | Documentation covers introduction, integrations, CLI, MCP, agent testing, observability, evaluations, datasets, prompt management, self-hosting and API reference. | Documentation includes feature guides, integration pages, self-hosting instructions, SDK references, REST API references, cookbooks and a changelog. |
| Framework integrations | Framework support includes OpenAI Agents, LangGraph, LangChain, CrewAI, Pydantic AI, Agno, Mastra, Vercel AI SDK, Google ADK, LangFlow and Flowise. | Named integrations include LangChain, LangGraph, LlamaIndex, CrewAI, AutoGen, Google ADK, OpenAI Agents, Semantic Kernel and many others. |
| Funding | Crunchbase lists LangWatch as a private pre-seed company with two funding rounds and investors including Volta Ventures and Antler. | TechCrunch reported a $50 million Series B in November 2021, bringing Comet's reported total raised to almost $70 million. |
| Headquarters | Amsterdam | New York City, United States |
| Integrations | Official integrations cover OpenAI, Anthropic, Google Gemini, Bedrock, Azure OpenAI, Vertex AI, Groq, Ollama and LiteLLM. | The integration catalog covers TypeScript, Python, Java, .NET and Ruby ecosystems plus no-code tools and OpenTelemetry. |
| Open source | The site describes LangWatch as open source under Apache 2.0. | The core observability and evaluation feature set is available as open-source code that users can download and run locally. |
| Prompt management | Prompts can be versioned through code, UI and API, templated with Liquid, synced with GitHub and compared in experiments. | Its prompt tools provide a library, version history, playground, composable prompt building and dataset-based comparisons. |
| Rating on G2 | 0.0 out of 5 from 0 reviews | No rating; 0 reviews listed for Opik |
| Self-hosting | Self-hosting is available with a Node.js command for local use and Docker, Kubernetes/Helm or VPC deployment options. | Self-hosting exposes the full feature set but omits user-management features; local Docker installation is for getting started, while Kubernetes is the production deployment option. |
| Support | Developer users receive GitHub and Discord community support, while Growth includes private Slack or Teams support. | The pricing page lists community and self-service support across plans, email support for Pro and Enterprise, and dedicated support and SLAs for Enterprise. |
| System requirements | The self-host command requires Node.js 24 or newer on macOS or glibc-based Linux. | The documented local setup assumes Git and Docker; Linux, macOS and Windows installation scripts are provided. |
LangWatch plans
- DeveloperFree
- Growth€29 a month
- EnterprisePriced on request
Opik plans
- Free CloudFree
- Open SourceFree
- Pro Cloud$19 a month
- EnterprisePriced 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 Opik if…
Opik is for teams building LLM applications or agents that need tracing, evaluation, and production monitoring. Its free plans are described as suitable for development and testing.