Comet Opik vs Promptfoo — Features, Pricing & Reviews Compared

Comet Opik

observability

Promptfoo

observability

Overview

What each tool does and who it's for

Comet Opik

Promptfoo

The AI Security Platform that catches vulnerabilities in development. Trusted by 127 of the Fortune 500 and 300,000+ developers worldwide.

Based on the limited social mentions available, users view Promptfoo as a comprehensive open-source tool that combines LLM performance evaluation and security red-teaming capabilities in a single CLI interface. The tool appears to have gained significant credibility after being acquired by OpenAI in March 2026, which users seem to view as validation of its effectiveness. There's notable interest from the developer community, particularly in Korean markets, suggesting it's gaining traction among AI practitioners. However, with only social mentions and no detailed user reviews available, it's difficult to assess specific user complaints or detailed pricing sentiment.

Key Metrics

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Avg Rating

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Mentions (30d)

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GitHub Stars

18,874

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GitHub Forks

1,622

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npm Downloads/wk

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PyPI Downloads/mo

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Community Sentiment

How developers feel about each tool based on mentions and reviews

Comet Opik

0% positive100% neutral0% negative

Promptfoo

0% positive100% neutral0% negative

Pricing

Comet Opik

Promptfoo

subscription + freemium + tieredFree tier

Use Cases

When to use each tool

Promptfoo (6)

Integrate AnywhereCI/CD pipelinesGitHub, GitLab, Jenkins, and moreMCP and Agent frameworksOn-premise or cloudTest Everything

Features

Only in Promptfoo (10)

Direct and indirect prompt injectionsJailbreaks tailored to your guardrailsData and PII leaksBusiness rule violationsInsecure tool use in agentsToxic content generationCI/CD pipelinesGitHub, GitLab, Jenkins, and moreMCP and Agent frameworksOn-premise or cloud

Developer Ecosystem

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GitHub Repos

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GitHub Followers

312

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npm Packages

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HuggingFace Models

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SO Reputation

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Product Screenshots

Comet Opik

No screenshots

Promptfoo

Company Intel

information technology & services

Industry

information technology & services

110

Employees

$74.8M

Funding

$23.4M

Series B

Stage

Merger / Acquisition

Supported Languages & Categories

Comet Opik

Promptfoo

AI/MLFinTechDevOpsSecurityDeveloper Tools

View Comet Opik Profile View Promptfoo Profile

Comet Opik

Promptfoo

Comet Opik vs Promptfoo — Comparison

Comet Opik

Promptfoo

Comet Opik vs Promptfoo — Comparison