head to head · open source
Dify vs opik
Dify has 156,167 GitHub stars, 24,658 forks, 1,067 open issues and last shipped yesterday. opik has 22,098 stars, 1,801 forks, 258 open issues and last shipped yesterday. Dify leads on adoption by 607% (156,167 vs 22,098 stars). Dify is written in TypeScript under a custom or non-standard licence; opik is written in Python under Apache-2.0. Dify has attracted 16% as many forks as stars, opik 8%. opik was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Dify | opik | |
|---|---|---|
| GitHub stars | ★ 156K | ★ 22K |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 25K | ⑂ 1.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Dify if
- You weight community size — 156K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick opik if
- You want the opik feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and opik fits your workflow better
About Dify
Dify is an open source LLM application development platform built in TypeScript. It provides a visual interface for designing, testing, and deploying AI workflows, RAG pipelines, and agentic systems without writing extensive code. The platform lives in the generative AI development ecosystem and targets teams needing to move from prototype to production using consistent tooling across environments.
About opik
Opik is open source LLM observability, evaluation, and AI agent tracing platform for teams building LLM apps, RAG systems, and agentic workflows, built by Comet, Apache 2.0 licensed, free to self host full platform.
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Frequently asked questions
Is Dify or opik more popular?
Dify has 156,167 GitHub stars and opik has 22,098. Dify has the larger community by that measure.
Are Dify and opik free?
Both are open source. Dify has no licence declared in this registry, and opik is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Dify and opik?
Dify is written in TypeScript and opik in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Dify or opik?
Choose Dify if you want the larger community (156,167 stars) or its Custom / other licence terms. Choose opik if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.