Percona CEO: don't use 'open weight' and 'open source' interchangeably

Speaking at Open Source Summit Europe in Prague, Percona CEO Peter Farkas argued that open-weight models are not open source, since they expose only training outputs without code or data. He warned that without a clear boundary 'open washing wins', as the OSI reopens debate on its 2024 Open Source AI Definition.

• Farkas: open weights give only model output, not code or training data
• In August open-weight models handled 56% of tokens via Vercel's AI Gateway
• OSI is revisiting its Open Source AI Definition and launched a 2-year fellowship
• Xiaomi's MiMo-V2.6 released RL code and 7,000 task environments