head to head · open source
claude-mem vs outlines
claude-mem has 110,572 GitHub stars, 9,645 forks, 186 open issues and last shipped yesterday. outlines has 15,998 stars, 911 forks, 166 open issues and last shipped 1 months ago. claude-mem leads on adoption by 591% (110,572 vs 15,998 stars). claude-mem is written in TypeScript under Apache-2.0; outlines is written in Python under Apache-2.0. claude-mem has attracted 9% as many forks as stars, outlines 6%. claude-mem was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| claude-mem | outlines | |
|---|---|---|
| GitHub stars | ★ 111K | ★ 16K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-11-02 | 2026-09-21 |
| Forks | ⑂ 9.6K | ⑂ 911 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick claude-mem if
- You weight community size — 111K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick outlines if
- You want the outlines 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 outlines fits your workflow better
About claude-mem
Claude Mem is now Grok Mem. The package is still claude mem . 🇨🇳 中文 • 🇹🇼 繁體中文 • 🇯🇵 日本語 • 🇵🇹 Português • 🇧🇷 Português • 🇰🇷 한국어 • 🇪🇸 Español • 🇩🇪 Deutsch • 🇫🇷 Français • 🇮🇱 עברית • 🇸🇦 العربية • 🇷🇺 Русский • 🇵🇱 Polski • 🇨🇿 Čeština • 🇳🇱 Nederlands • 🇹🇷 Türkçe • 🇺🇦 Українська • 🇻🇳 Tiếng Việt • 🇵🇭 Tagalog • 🇮🇩 Indonesia • 🇹🇭 ไทย • 🇮🇳 हिन्दी • 🇧🇩 বাংলা • 🇵🇰 اردو • 🇷🇴 Română • 🇸🇪 Svenska • 🇮🇹 Italiano • 🇬🇷 Ελληνικά • 🇭🇺 Magyar • 🇫🇮 Suomi • 🇩🇰 Dansk • 🇳🇴 Norsk Grok Mem is how Grok Bots remember. Sits next to Grok's own memory. Does not replace it. Quick…
read the full claude-mem overview →
About outlines
🗒️ Structured outputs for LLMs 🗒️ Made with ❤👷️ by the team at .txt Trusted by NVIDIA, Cohere, HuggingFace, vLLM, etc. [![PyPI Version][pypi version badge]][pypi] [![Downloads][downloads badge]][pypistats] [![Stars][stars badge]][stars] [![Discord][discord badge]][discord] [![Blog][dottxt blog badge]][dottxt blog] [![Twitter][twitter badge]][twitter] The .txt API is currently in early access. Request access here → 🚀 Building the future of structured generation We're working with select partners to develop new interfaces to structured generation. Need XML, FHIR, custom schemas or grammars? Let's talk. Audit…
read the full outlines overview →
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Frequently asked questions
Is claude-mem or outlines more popular?
claude-mem has 110,572 GitHub stars and outlines has 15,998. claude-mem has the larger community by that measure.
Are claude-mem and outlines free?
Both are open source. claude-mem is licensed under Apache-2.0 and outlines under Apache-2.0. Neither carries a licence fee.
What is the difference between claude-mem and outlines?
claude-mem is written in TypeScript and outlines 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, claude-mem or outlines?
Choose claude-mem if you want the larger community (110,572 stars) or its Apache-2.0 licence terms. Choose outlines if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.