Welcome to CodaLab main server!

August 2023: Discover Codabench, the evolution of CodaLab Competitions. We encourage organizers to switch to this fast, reliable platform, which is the focus of our ongoing and future enhancements.

  • This is a new server, you must re-create your CodaLab account if you previously had one.
  • We provide a default CPU queue for small jobs (typically for result submission competitions). For code submission, organizers are expected to provide their own queue, see instructions.
  • Are you looking for older competitions? Check the old CodaLab Competitions website!

    • Join the CodaLab competition Google group, to advertise your competitions, ask questions, or read news.
    • To report bugs and problems you face, please open Github issues.
    • Learn more about us.

    Cite CodaLab Competitions in your research

      author  = {Adrien Pavao and Isabelle Guyon and Anne-Catherine Letournel and Dinh-Tuan Tran and Xavier Baro and Hugo Jair Escalante and Sergio Escalera and Tyler Thomas and Zhen Xu},
      title   = {CodaLab Competitions: An Open Source Platform to Organize Scientific Challenges},
      journal = {Journal of Machine Learning Research},
      year    = {2023},
      volume  = {24},
      number  = {198},
      pages   = {1--6},
      url     = {}