Runtime comparison
KoboldCpp vs LM Studio
KoboldCpp is a AGPL-3.0-licensed runtime for Linux · macOS · Windows running on CUDA · CPU · Vulkan · ROCm; LM Studio is proprietary-licensed for Linux · macOS · Windows on CUDA · Metal · CPU · Vulkan · ROCm. LM Studio rates easier to set up (5/5 vs 4/5 in our sourced ratings). Pick KoboldCpp for people who want a desktop app and no terminal; pick LM Studio for people who want a desktop app and no terminal.
| Spec | KoboldCpp | LM Studio |
|---|---|---|
| License | AGPL-3.0 | proprietary |
| Operating systems | Linux · macOS · Windows | Linux · macOS · Windows |
| GPU backends | CUDA · CPU · Vulkan · ROCm | CUDA · Metal · CPU · Vulkan · ROCm |
| Install | binary / source | binary |
| Ease of use | 4/5 | 5/5 |
| Quant formats | gguf | gguf, mlx |
| Engine | llama.cpp | llama.cpp|mlx |
| GitHub stars | 10,973 | — |
| Latest version | v1.116.1 | — |
| Graphical app (GUI) | Yes | Yes |
| Server mode | Yes | Yes |
| OpenAI-compatible API | Yes | Yes |
| CPU offload | Yes | Yes |
| Multi-GPU | Yes | Yes |
| Speculative decoding | Yes | No |
| LoRA support | Yes | Yes |
| KV-cache quantization | Yes | Yes |
Which should you use?
KoboldCpp
Best for people who want a desktop app and no terminal. Ships a graphical app, runs on CUDA · CPU · Vulkan · ROCm.
Full KoboldCpp guide →LM Studio
Best for people who want a desktop app and no terminal. Ships a graphical app, runs on CUDA · Metal · CPU · Vulkan · ROCm.
Full LM Studio guide →Neither runtime changes whether a model fits — that is your memory and quantization. Check your hardware first, then pick the runtime.
Sources: KoboldCpp github.com/LostRuins/koboldcpp (as of 2026-07-08); LM Studio lmstudio.ai (as of 2026-07-08).