head to head · open source
typia vs optillm
typia has 5,912 GitHub stars, 224 forks, 4 open issues and last shipped yesterday. optillm has 4,296 stars, 388 forks, 23 open issues and last shipped 3 days ago. typia leads on adoption by 38% (5,912 vs 4,296 stars). typia is written in TypeScript under MIT; optillm is written in Python under Apache-2.0. typia has attracted 4% as many forks as stars, optillm 9%. typia was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (agentic-ai), 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
| typia | optillm | |
|---|---|---|
| GitHub stars | ★ 5.9K | ★ 4.3K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-09-19 | 2026-09-17 |
| Forks | ⑂ 224 | ⑂ 388 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick typia if
- You weight community size — 5.9K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick optillm if
- You want the optillm 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 optillm fits your workflow better
About typia
Typia is an MIT licensed TypeScript transformer library that compiles pure TypeScript types into super fast runtime validators and serializers, built for TypeScript and Node.js developers who want runtime type safety without writing or maintaining a separate schema.
read the full typia overview →
About optillm
OptiLLM is a Python project that provides an optimizing inference proxy for large language models. It exposes an OpenAI API compatible endpoint and sits between an application and model providers, allowing callers to request reasoning oriented optimizations without changing model weights or adding training. The project lives in the developer tools and API development ecosystem, and its topics connect it to agents, agentic workflows, API gateways, chain of thought prompting, and generative AI inference.
read the full optillm overview →
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Frequently asked questions
Is typia or optillm more popular?
typia has 5,912 GitHub stars and optillm has 4,296. typia has the larger community by that measure.
Are typia and optillm free?
Both are open source. typia is licensed under MIT and optillm under Apache-2.0. Neither carries a licence fee.
What is the difference between typia and optillm?
typia is written in TypeScript and optillm 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, typia or optillm?
Choose typia if you want the larger community (5,912 stars) or its MIT licence terms. Choose optillm if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.