Opik vs Traceloop
Opik
comet.comTraceloop
traceloop.comSide by side
| Figure | Opik | Traceloop |
|---|---|---|
| Price from | $19/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | Yes | Yes |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 3 |
| Spec score · AI Agent Observability Tools | 8.8 (#7) | 8.1 (#18) |
| Spec score · Llm Monitoring | 8.7 (#8) | 8.1 (#14) |
| Company profile | Comet is a privately held software-development company headquartered in New York with 51–200 employees and a 2017 founding year. | LinkedIn lists Traceloop as privately held, founded in 2022, headquartered in San Francisco and employing 2–10 people. |
| Framework integrations | Named integrations include LangChain, LangGraph, LlamaIndex, CrewAI, AutoGen, Google ADK, OpenAI Agents, Semantic Kernel and many others. | Supported frameworks include LangChain, LlamaIndex, CrewAI, Haystack, LiteLLM, Agno and OpenAI Agents. |
| Funding | TechCrunch reported a $50 million Series B in November 2021, bringing Comet's reported total raised to almost $70 million. | The company’s About page names Y Combinator, Ibex Investors, Sorenson Capital, Samsung Next, Grand Ventures and other backers. |
| Integrations | The integration catalog covers TypeScript, Python, Java, .NET and Ruby ecosystems plus no-code tools and OpenTelemetry. | OpenLLMetry supports providers including OpenAI, Anthropic, Bedrock, Gemini, Cohere, Mistral, Ollama and Vertex AI. |
| Open source | The core observability and evaluation feature set is available as open-source code that users can download and run locally. | OpenLLMetry is an open-source observability project built on OpenTelemetry, and its traces can be exported to Traceloop or another observability stack. |
| Prompt management | Its prompt tools provide a library, version history, playground, composable prompt building and dataset-based comparisons. | The platform includes prompt management and a prompt registry for storing and fetching prompt configurations. |
| Rating on G2 | No rating; 0 reviews listed for Opik | 5 out of 5 from 2 reviews. |
| Self-hosting | 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. | Full-platform self-hosting uses Kubernetes with ClickHouse, Kafka, PostgreSQL and S3-compatible storage, including air-gapped deployments. |
| 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. | The Enterprise plan includes dedicated Slack support, according to the pricing page. |
| Tracing | The platform captures and visualizes multi-step agent execution, including LLM calls, tools and retrieval steps. | One-line instrumentation provides visibility into prompts, responses, latency and request execution traces. |
| What it does | Opik records agent interactions, retrieval, tool calls and model responses, then evaluates and monitors them across development, testing and production. | Traceloop monitors, evaluates, debugs and tests LLM applications and agents in production. |
Plans
In their own words
Opik
Opik helps teams building applications or agents that call an LLM log actions and evaluate behavior across development, testing, and production. It captures and visualizes traces, supports annotation, and provides audit logs. Its evaluation tools include more than 30 metrics for outcomes such as answer relevance, context precision, task completion, and hallucination. In production, Opik can evaluate traces in real time, alert when criteria fail, and track token use and model costs. Test Suites offer pass/fail assertions, an Agent Playground supports end-to-end tests, and a Prompt Optimizer provides six algorithms. Core observability and evaluation features are available as open-source code for local use. Opik includes a REST API and Python client, with Python and TypeScript SDKs listed, and integrations with more than 40 frameworks, model providers, and gateways. Free Cloud allows up to 10 team members, 25,000 spans per month, and 60-day retention. Pro Cloud costs $19 a month and lists up to 50 team members and 100,000 spans monthly.