An epoch represents one full pass through a model’s training dataset. Because examples are usually processed in smaller batches, an epoch contains multiple parameter-update steps; the exact number depends on dataset and batch size. Models often train for many epochs so optimization can progressively reduce loss. Too few passes may leave the model undertrained, while too many can waste compute or increase overfitting. Training order is commonly shuffled between epochs, and distributed or streaming setups can make the definition less literal. Teams monitor training and validation curves, save checkpoints, and use schedules or early stopping rather than assuming a fixed epoch count is optimal for every dataset.
OpenAI now uses age prediction to adjust ChatGPT’s safety settings for teens. Users 18 and older can verify their age to disable extra restrictions.
OpenAI has invested in Merge Labs, a brain-computer interface startup founded by CEO Sam Altman, as part of a $250 million seed round valuing the company at $850 million.
Apple introduced Apple Creator Studio, a subscription bundle combining professional creative apps with new AI-driven features across video, music, imaging, and productivity tools. The offering expands Apple’s push into intelligent software workflows for creators.
Google released a major upgrade to its Gemini Deep Research agent, giving developers access to advanced autonomous research capabilities through the Interactions API. The company also introduced DeepSearchQA, a benchmark for evaluating multi-step web research agents.
Google introduced the Titans architecture and the MIRAS framework to enable AI models to handle massive contexts and update their internal memory while running, improving performance in long-sequence tasks.
OpenAI co-founder Ilya Sutskever says the era of scaling compute and data as the main driver of AI progress is ending, arguing that meaningful advances now depend on true scientific breakthroughs and solving AI’s poor generalization.
Voice AI startup Wispr has secured another $25M in funding as its Flow dictation app surges in enterprise adoption and user retention, bringing total capital raised to $81M.
Google has released Gemini 3, its most powerful AI model yet, offering advanced multimodal reasoning, coding capabilities, and agentic planning tools across multiple platforms.
Pinterest is turning to open source AI models to cut expenses and enhance its visual search and shopping tools, even as the company forecasts softer holiday revenue. CEO Bill Ready says the approach will support performance while keeping infrastructure costs in check.
Elon Musk has unveiled Grokipedia – an AI-driven encyclopedia built on Grok that aims to offer factual, bias-free knowledge as an alternative to Wikipedia.