Opik

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Opik is ranked #3 of 32 in AI agent observability tools on Inferse. It runs on API, Linux, Self-hosted, Web. There is a free plan. A free trial is offered. Paid plans start at $19/mo.

Compared on AI agent observability tools

Free plan: Yescomet.com
Paid from: $19/mocomet.com

Facts

Purpose: Opik logs agent actions and provides automated evaluation workflows to find and fix errors across development, testing, and production.comet.com · 30 Sept 2026
Tracing and debugging: Opik captures and visualizes agent actions, supports trace annotation, and provides audit logs.comet.com · 30 Sept 2026
Evaluation: The product page says Opik includes more than 30 metrics for evaluating answer relevance, context precision, task completion, hallucination, and other outcomes.comet.com · 30 Sept 2026
Production monitoring: Opik can evaluate production traces in real time, alert on failed criteria, and track token usage and model costs.comet.com · 30 Sept 2026
Prompt and agent testing: Opik offers Test Suites with pass/fail assertions, an Agent Playground for end-to-end tests, and a Prompt Optimizer with six algorithms.comet.com · 30 Sept 2026
Open source: The core observability and evaluation feature set is available as open-source code that users can download and run locally.comet.com · 30 Sept 2026
Integrations: The pricing page describes integrations with more than 40 AI frameworks, model providers, and AI gateways, naming LangChain, OpenAI, Google ADK, and LangGraph as examples.comet.com · 30 Sept 2026
API and SDKs: The product includes a REST API and Python client, and the pricing page lists Python and TypeScript SDKs.comet.com · 30 Sept 2026
Free plan limits: The Free Cloud plan lists up to 10 team members, 25,000 spans per month, and 60-day data retention.comet.com · 30 Sept 2026
Pro plan limit: The Pro Cloud plan lists up to 50 team members and 100,000 spans per month, with customizable span limits and data retention periods.comet.com · 30 Sept 2026
Security and compliance: The Trust Center lists ISO 9001:2015, ISO/IEC 27001:2022, and SOC 2 Type 2 compliance for Comet.trust.comet.com · 30 Sept 2026
Enterprise security: The pricing page lists enterprise SSO and SOC 2, ISO 27001, ISO 9001, HIPAA, and GDPR compliance for the Enterprise plan.comet.com · 30 Sept 2026
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.comet.com · 30 Sept 2026
Audience: The pricing page describes Opik as a platform for teams building applications or agents that make calls to an LLM, and says its free plans suit development and testing.comet.com · 30 Sept 2026