# SGLang

RadixAttention for automatic prefix-cache reuse across requests. SGLang is free, with no paid plan attached, at github.com.

## Facts

- **Pricing tier:** Free
- **Works on:** CLI, Self-hosted, API, Linux
- **Works in browser:** No

## Capabilities

- RadixAttention for automatic prefix-cache reuse across requests
- Day-0 support for newly released open models (e.g. Kimi K3) among the fastest of any runner
- Scales from single GPU to distributed multi-node clusters with speculative decoding

## FAQ

### What is SGLang?

SGLang is listed under Local LLM Runners, in the AI Models & Local Execution category on Flocci AI Tools. RadixAttention for automatic prefix-cache reuse across requests. It is free, with no paid plan attached, and it lives at github.com.

### Is SGLang free?

SGLang is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 396 entries on Flocci AI Tools with no upgrade path built in.

### Can I use SGLang in a browser, or is there an app?

SGLang needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on the command line, self-hosting, an API and Linux.

### What can SGLang do?

SGLang does 3 things the catalog singles out: Radixattention for automatic prefix-cache reuse across requests; day-0 support for newly released open models (e.g. kimi k3) among the fastest of any runner; scales from single gpu to distributed multi-node clusters with speculative decoding.

### What is the best free alternative to SGLang?

AnythingLLM is the closest free alternative: it sits in the same Local LLM Runners sub-category and is free. BitNet, exo and Google AI Edge Gallery also start free. The full list is on the alternatives page.

## Related

- [SGLang alternatives](https://aitools.flocci.in/alternatives/sglang)
- [Local LLM Runners](https://aitools.flocci.in/category/ai-models-local-execution/local-llm-runners)
- [Best free local LLM runners](https://aitools.flocci.in/best/best-local-llm-runners)
---

Source: Flocci AI Tools — https://aitools.flocci.in/tool/sglang

Facts last verified: October 2026