Comparison · Local LLM runners

Jan vs KoboldCpp: which is better in 2026?

Jan ranks higher in our list of local LLM runners (#5 against #6, score 86.0 against 84.5), but the gap is small and the better choice depends on what you need.

How we rank Share

  • 86.0
    Editorial score
    84.5
  • 3
    Platforms
    3
  • Yes
    Free to use
    Yes
  • Yes
    Open source
    Yes

Which should you choose?

Choose Jan if you want

Offline chat on a personal computer.

An open-source desktop chat app for macOS, Windows and Linux that runs offline and can connect to cloud providers. It is a finished app rather than an engine, so it gives less developer control than llama.cpp.

Choose KoboldCpp if you want

Single-file local writing and chat with GGUF models.

Single-file AGPL-3.0 runner for GGUF models, with the KoboldAI Lite interface and image, speech and music generation on Windows, Linux and macOS. Its copyleft license and wider feature set place it below Ollama.

Side by side

JanKoboldCpp
Score86.084.5
Rank in list#5 of 10#6 of 10
PriceFree and open sourceFree and open source under Apache 2.0; cloud model connections are optionalFree and open sourceAGPL-3.0 software is free to run locally
Free to useYesYes
Open sourceYesYes
PlatformsmacOSWindowsLinuxmacOS, Windows, LinuxWindowsLinuxmacOSWindows, Linux, macOS
Made byNot statedLostRuins
InterfaceDesktop chat app with local APIWeb interface (KoboldAI Lite)
Model formatLocal modelsGGUF
Cloud optionOptional cloud providersNot listed
Best forOffline chat on a personal computerSingle-file local writing and chat with GGUF models
Strengths
  • Apache 2.0 licensed with source on GitHub
  • Runs models offline on your own computer
  • Connects to cloud providers when wanted
  • One file with no install step
  • Runs on CPU or GPU
  • AGPL-3.0 open source
Limits
  • Local speed depends on the computer's hardware
  • Smaller model catalog than a hosted service
  • AGPL-3.0 has strong copyleft terms
  • Image, video and music need separate compatible models
LinksVisit site Visit site

Questions about Jan vs KoboldCpp

Is Jan better than KoboldCpp?
Jan ranks higher in our list of local LLM runners (#5 against #6, score 86.0 against 84.5), but the gap is small and the better choice depends on what you need. Jan is best for: offline chat on a personal computer. KoboldCpp is best for: single-file local writing and chat with GGUF models.
Which is cheaper, Jan or KoboldCpp?
Jan: Free and open source under Apache 2.0; cloud model connections are optional. KoboldCpp: AGPL-3.0 software is free to run locally.
Do Jan and KoboldCpp run on the same platforms?
Jan supports macOS, Windows, Linux. KoboldCpp supports Windows, Linux, macOS.