AI Governance Safety & Evaluation Freemium

Opik

Open-source observability, evaluation, and optimization for LLM applications and agents

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PricingFreemium
Starting price$19/mo
Free planYes
Free trialYes
APIYes
Open sourceYes
DeploymentHybrid
Last verifiedAugust 3, 2026
Overview

Tool overview

Opik is listed under AI Governance Safety & Evaluation AI tools.

Summary

What is Opik?

Opik by Comet traces, evaluates, tests, and optimizes LLM applications and agents. Teams can use the Apache-licensed self-hosted platform or managed cloud plans with datasets, experiments, agent playgrounds, annotations, optimization, REST APIs, SDKs, and enterprise deployment controls.

Best fit

Best for

AI engineering teams testing and monitoring LLM applications and agents

Audience

Who is it for?

LLM application developersAI platform teamsQuality and evaluation teamsEnterprise machine-learning organizations
Recommendation

Decision note

Best for engineering teams that want open-source LLM observability with a direct path to hosted collaboration and enterprise deployment.

Capabilities

Key features

Agent tracing, sessions, and execution graphs

Datasets, experiments, test suites, and evaluation metrics

Playgrounds, annotations, debugging, and agent optimization

Open-source deployment plus managed cloud and enterprise options

Workflows

Use cases

Debug LLM applications and agents

Run regression and quality evaluations

Monitor production traces and costs

Optimize prompts, tools, and agent behavior

Strengths

Pros

  • True open-source platform costs $0
  • Free Cloud supports up to ten team members
  • REST API works with open-source and cloud editions
Considerations

Limitations

Evaluation quality depends on representative datasets, metrics, and review practices. Observability does not prevent model failures, and teams must protect captured prompts, outputs, credentials, and sensitive traces.

Cost

Pricing details

Pricing modelFreemium
Starting price$19/mo
Free planYes
Free trialYes
Pricing context

Billing options

Free open-source editionFree cloud planMonthly Pro Cloud subscriptionCustom Enterprise
Pricing context

Pricing note

Open Source and Free Cloud cost $0. Pro Cloud starts at $19 per month and offers a free trial. Enterprise uses custom pricing for flexible deployment, security, service accounts, SSO, compliance, support, and SLAs.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

LangChain

LangGraph

OpenAI

Google ADK

CrewAI

OpenTelemetry

Specs

Technical details

PlatformsAPI, Web
Multilingual supportDepends on data, prompts, and models
Login requiredYes
Open sourceYes
LicenseApache License 2.0
DeploymentHybrid
CompanyComet ML, Inc.
Current versionPlatform/OSS releases update over time; verify Comet docs or GitHub.
Models / versionsModel-agnostic LLM observability and evaluation platform.
Editions / plansFree, Basic, Professional, Organization, and Custom plans
Data confidenceHigh
Last verifiedAugust 3, 2026
Documentation → Source code → Data source →
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Answers

Frequently asked questions

Opik by Comet traces, evaluates, tests, and optimizes LLM applications and agents. Teams can use the Apache-licensed self-hosted platform or managed cloud plans with datasets, experiments, agent playgrounds, annotations, optimization, REST APIs, SDKs, and enterprise deployment controls.
AI engineering teams testing and monitoring LLM applications and agents
The listed pricing model for Opik is Freemium. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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