head to head · open source
typia vs optillm
typia has 5,960 GitHub stars, 233 forks, 4 open issues and last shipped 2 days ago. optillm has 4,335 stars, 398 forks, 23 open issues and last shipped 3 days ago. typia leads on adoption by 37% (5,960 vs 4,335 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 | ★ 6.0K | ★ 4.3K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-11-03 | 2026-11-02 |
| Forks | ⑂ 233 | ⑂ 398 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick typia if
- You weight community size — 6.0K 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 typia is a transformer library supporting below features: Super fast Runtime Validators Enhanced JSON schema and serde functions LLM function calling harness Protocol Buffer encoder and decoder Random data generator [!NOTE] Only one line required, with pure TypeScript type Runtime validator is 20,000x faster than class validator JSON serialization is 200x faster than class transformer LLM function calling harness turns 6.75% → 100% accuracy Write the type on the left, and typia compiles it into the validator on the right — at build time, with no schema and no runtime reflection. Setup Install typia with…
read the full typia overview →
About optillm
OptiLLM 🚀 2 10x accuracy improvements on reasoning tasks with zero training 🤗 HuggingFace Space • 📓 Colab Demo • 💬 Discussions OptiLLM is an OpenAI API compatible optimizing inference proxy that implements 20+ state of the art techniques to dramatically improve LLM accuracy and performance on reasoning tasks without requiring any model training or fine tuning. It is possible to beat the frontier models using these techniques across diverse tasks by doing additional compute at inference time. A good example of how to combine such techniques together is the CePO approach from Cerebras. ✨ Key Features 🎯…
read the full optillm overview →
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Frequently asked questions
Is typia or optillm more popular?
typia has 5,960 GitHub stars and optillm has 4,335. 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 (5,960 stars) or its MIT licence terms. Choose optillm if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.