GRPO Explained: Group Relative Policy Optimization
GRPO (Group Relative Policy Optimization) is a critic-free RL algorithm for LLM training. Learn how it works, how it differs from PPO, and its role in DeepSeek-R1
ElevenLabs: From $3.3B to $11B – The Complete Company Story
Founded in 2022 by two Polish engineers, ElevenLabs leads AI voice synthesis. Company history, business model, funding rounds, and technology explained.
Reflection AI: $25B Valuation, SpaceX Deal & the Open-Weight Bet
Reflection AI: $20B valuation, no model released. Co-founder interview — open-weight strategy, sovereign AI thesis & chances against closed labs analyzed.