compare
Fabric vs SGLang
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Fabric | SGLang |
|---|---|---|
| Language | Go | Python |
| Licence | MIT | Apache-2.0 |
| Stars | 44k | 37k |
| Latest | v1.4.515 | v0.5.21 |
| Last push | 2026-10-05 | 2026-10-06 |
| Release cadence | about 1 day between releases | about 14 days between releases |
| Active contributors | 25 commit authors on the default branch in the last 90 days | 161+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace ChatGPT. Alternatives to ChatGPT →
PartialFabricRuns a library of reusable prompts over text piped in from the terminal.
PartialSGLangServes open-weight models behind an OpenAI-compatible API, tuned for GPU throughput.
Fabric
- v1.4.5152026-10-05Added Opper as an OpenAI-compatible provider, registered in the ProviderMap with the base URL
- v1.4.5142026-10-05Added a new --print-prompt flag that renders the composed chat messages and exits without calling a model.
- v1.4.5132026-10-05Feat: add Firecrawl web search via --firecrawl_search flag
- v1.4.5122026-10-05Added DemonRoute as an OpenAI-compatible AI provider.
- v1.4.5112026-10-04Fixed a remote arbitrary file write vulnerability by disabling automatic application of file changes when running in AP…
Fabric
unsigned The latest release, v1.4.515, carries no signature GitHub could verify.
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SGLang
unsigned The latest release, v0.5.21, carries no signature GitHub could verify.
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