Open source inference projects

Every project in the registry tagged inference, ranked by real GitHub adoption.

projects 11 combined stars ★ 122K refresh nightly
01 vllm ★ 92K

A high-throughput and memory-efficient inference and serving engine for LLMs

last push5 hours ago languagePython licenseApache-2.0
02 vllm-omni ★ 6.9K

A framework for efficient model inference with omni-modality models

last push6 hours ago languagePython licenseApache-2.0
03 gpustack ★ 5.7K

A GPU cluster manager for high-performance AI model serving (vLLM, SGLang) and on-demand SSH-accessible GPU instances.

last push18 hours ago languagePython licenseApache-2.0
04 typedb ★ 4.5K

TypeDB: Built for systems, not records

last push7 hours ago languageRust licenseMPL-2.0
05 FastDeploy ★ 3.7K

High-performance Inference and Deployment Toolkit for LLMs and VLMs based on PaddlePaddle

last push23 days ago languagePython licenseApache-2.0
06 dstack ★ 2.3K

GPU orchestration across clouds, Kubernetes, and on-prem

last push12 hours ago languagePython licenseMPL-2.0
07 Envoy AI Gateway ★ 2.1K

Route GenAI traffic with confidence using open source

last push13 hours ago languageGo licenseApache-2.0
08 InferenceX ★ 1.7K

Open Source Continuous Inference Benchmark Research Platform — Kimi K3 2.8T, MiniMax M3, DeepSeekv4, GLM5 - GB200 NVL72 vs MI355X vs B200 vs GB300 NVL72 & soon™

last push7 hours ago languagePython licenseApache-2.0
09 LLM Gateway ★ 1.6K

Unified API for all LLM providers with analytics

last push15 hours ago languageTypeScript license
10 sglang-omni ★ 1.2K

SGLang-Omni is a high-performance serving framework for audio models (TTS, ASR) and unified multimodal models.

last push5 hours ago languagePython licenseApache-2.0
11 pegainfer ★ 704

Pure Rust + CUDA LLM inference engine — no PyTorch, OpenAI-compatible, serves Qwen3 to Kimi-K2

last push5 hours ago languageRust licenseApache-2.0

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Frequently asked questions

How many open source inference projects are there?

This registry tracks 11 projects tagged inference, with 122,408 GitHub stars between them. The most-adopted is vllm at 92,028 stars.

Are these inference projects free to use?

Yes — 10 of the 11 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which inference project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these inference projects still maintained?

11 of the 11 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.