Comparison
opik vs promptfoo
Verdict
Pick opik if opik is a tool for debugging, evaluating, and monitoring LLM applications, RAG systems, and agentic workflows. It supports self-hosting and provides a Python SDK for easy integration; pick promptfoo if promptfoo is a TypeScript-based tool for evaluating and testing prompts, AI agents, and retrieval-augmented generation systems. It supports red teaming and vulnerability scanning for AI models, with.
Markdown twin · opik alternatives · promptfoo alternatives
GraphCanon updated Sep 20, 2026
18views this month
Trust & integrity
| Signal | opik | promptfoo |
|---|---|---|
| Maintenance | Very active (0d since push) As of Sep 18, 2026 · github_public_v1 | Very active (0d since push) As of Sep 18, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 18, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 18, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Sep 18, 2026 · osv@v1 | No lockfile (source not queried) As of Sep 18, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- opik
- Debug, evaluate, and monitor LLM applications, RAG systems, and agentic workflows
- promptfoo
- Test prompts, agents, and RAGs. Compare performance of various LLMs.
Stars
- opik
- 22k
- promptfoo
- 25k
Forks
- opik
- 1.8k
- promptfoo
- 2.3k
Open issues
- opik
- 266
- promptfoo
- 631
Language
- opik
- Python
- promptfoo
- TypeScript
Adopt for
- opik
- Opik is a tool for debugging, evaluating, and monitoring LLM applications, RAG systems, and agentic workflows. It supports self-hosting and provides a Python SDK for easy integration.
- promptfoo
- Promptfoo is a TypeScript-based tool for evaluating and testing prompts, AI agents, and retrieval-augmented generation systems. It supports red teaming and vulnerability scanning for AI models, with CI/CD integration.
Persona
- opik
- -
- promptfoo
- -
Runtime
- opik
- -
- promptfoo
- -
License
- opik
- Apache-2.0
- promptfoo
- MIT
Last pushed
- opik
- Sep 18, 2026
- promptfoo
- Sep 18, 2026
Categories
- opik
- Evaluation & Observability
- promptfoo
- Evaluation & Observability
Trust and health
Open issues (now)
- opik
- 266
- promptfoo
- 631
Stars delta
- opik
- +933 (30d)
- promptfoo
- +1.4k (30d)
Open issues delta
- opik
- +94 (30d)
- promptfoo
- +150 (30d)
Full report
- opik
- Trust report
- promptfoo
- Trust report
Typed relationship
opik alternative promptfooBoth Promptfoo and OPiK provide tools for evaluating, testing, and improving the performance of LLM models and systems.
Shared compatibility
- Python · opik: Python runtime · promptfoo: Python runtime
Choose opik if…
- opik is primarily Python; promptfoo is TypeScript.
- License: opik is Apache-2.0, promptfoo is MIT.
- Both Promptfoo and OPiK provide tools for evaluating, testing, and improving the performance of LLM models and systems.
- Tags unique to opik: langchain, llama-index, llm, llm-observability.
- When you need comprehensive tracing and automated evaluations for LLM applications, RAG systems, and agentic workflows.
When NOT to use opik
- If you do not require comprehensive tracing and automated evaluations, and simpler monitoring tools suffice.
- When you prefer not to self-host and manage your own Opik server.
- If your project is not in Python and you do not want to use the Python SDK.
- When you need a tool that supports more languages or frameworks beyond Python.
Choose promptfoo if…
- promptfoo is primarily TypeScript; opik is Python.
- License: promptfoo is MIT, opik is Apache-2.0.
- Requirements: Requires Node.js >=22.22.0, with Node.js 24 LTS recommended.; API keys for most LLM providers are required and should be set as environment variables..
- Both Promptfoo and OPiK provide tools for evaluating, testing, and improving the performance of LLM models and systems.
- Tags unique to promptfoo: ci, ci-cd, cicd, evaluation-framework.
- promptfoo ships Docker support for self-hosted deployment.
- When you need to compare the performance of various LLMs such as GPT, Claude, Gemini, DeepSeek, and more.
When NOT to use promptfoo
- If you are working with languages other than TypeScript, as Promptfoo is specifically designed for TypeScript environments.
- When you do not need to compare multiple LLMs and only require a simple prompt testing tool without advanced features like red teaming.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (comet-ml/opik) · observed Sep 20, 2026
- GitHub forks (comet-ml/opik) · observed Sep 20, 2026
- Last push (comet-ml/opik) · observed Sep 18, 2026
- License file (Apache-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
- GitHub stars (promptfoo/promptfoo) · observed Sep 20, 2026
- GitHub forks (promptfoo/promptfoo) · observed Sep 20, 2026
- Last push (promptfoo/promptfoo) · observed Sep 18, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
GitHub stars on cards: opik 22k · promptfoo 25k (synced Sep 20, 2026).
Common questions
- What is the difference between opik and promptfoo?
- opik: Debug, evaluate, and monitor LLM applications, RAG systems, and agentic workflows. promptfoo: Test prompts, agents, and RAGs. Compare performance of various LLMs.. See the comparison table for live GitHub stats and shared categories.
- When should I choose opik over promptfoo?
- Choose opik over promptfoo when opik is primarily Python; promptfoo is TypeScript; License: opik is Apache-2.0, promptfoo is MIT; Both Promptfoo and OPiK provide tools for evaluating, testing, and improving the performance of LLM models and systems; Tags unique to opik: langchain, llama-index, llm, llm-observability; When you need comprehensive tracing and automated evaluations for LLM applications, RAG systems, and agentic workflows.
- When should I choose promptfoo over opik?
- Choose promptfoo over opik when promptfoo is primarily TypeScript; opik is Python; License: promptfoo is MIT, opik is Apache-2.0; Requirements: Requires Node.js >=22.22.0, with Node.js 24 LTS recommended.; API keys for most LLM providers are required and should be set as environment variables.; Both Promptfoo and OPiK provide tools for evaluating, testing, and improving the performance of LLM models and systems; Tags unique to promptfoo: ci, ci-cd, cicd, evaluation-framework; promptfoo ships Docker support for self-hosted deployment; When you need to compare the performance of various LLMs such as GPT, Claude, Gemini, DeepSeek, and more.
- When should I avoid opik?
- If you do not require comprehensive tracing and automated evaluations, and simpler monitoring tools suffice. When you prefer not to self-host and manage your own Opik server. If your project is not in Python and you do not want to use the Python SDK. When you need a tool that supports more languages or frameworks beyond Python.
- When should I avoid promptfoo?
- If you are working with languages other than TypeScript, as Promptfoo is specifically designed for TypeScript environments. When you do not need to compare multiple LLMs and only require a simple prompt testing tool without advanced features like red teaming.
- Is opik or promptfoo more popular on GitHub?
- promptfoo has more GitHub stars (25,251 vs 22,110). Stars measure visibility, not whether either tool fits your constraints.
- Are opik and promptfoo open source?
- Yes - both are open-source projects on GitHub (opik: Apache-2.0, promptfoo: MIT).
- Where can I find alternatives to opik or promptfoo?
- GraphCanon lists graph-backed alternatives at opik alternatives and promptfoo alternatives (opik markdown twin, promptfoo markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, opik or promptfoo?
- opik: Very active. promptfoo: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for opik and promptfoo?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: opik trust report; promptfoo trust report.