Sequence-to-sequence, or Seq2Seq, describes models that map an input sequence to an output sequence whose length may differ. Machine translation converts words in one language into another, speech recognition maps audio frames to text, and summarization produces a shorter sequence from a longer document. Many Seq2Seq systems use an encoder to represent the input and a decoder to generate output step by step, often with attention between them. Transformer encoder–decoder architectures largely replaced earlier recurrent designs. Training typically uses paired examples and token-level loss, while inference relies on greedy, beam, or sampling-based decoding. Quality depends on alignment, context limits, data coverage, and evaluation beyond surface overlap.
Researchers report that ChatGPT-5.2 Pro helped simplify and generalize a complex gluon scattering formula, with results presented at the AAAS annual meeting.
Samsung introduces the Galaxy S26, S26+ and S26 Ultra, featuring advanced Galaxy AI, a new Privacy Display, and upgraded performance powered by Snapdragon 8 Elite Gen 5 for Galaxy.
Perplexity unveils Perplexity Computer, a general-purpose AI system that orchestrates multiple frontier models to run complex workflows autonomously.
Andrej Karpathy argues AI coding agents now fundamentally change programming workflows, enabling long-running autonomous tasks and redefining software engineering.
Anthropic acquires Vercept to enhance Claude’s computer use capabilities, following major benchmark gains with Claude Sonnet 4.6 and continued expansion of its AI research team.
Irina Bodnar says Anthropic’s Claude and Meta-backed Manus introduced features that disrupted her AI ad startup Ryze AI, triggering a pivot and raising questions about startup survival in the age of AI giants.
MSCI introduces AI connectors enabling access to its data via MSCI ONE, ChatGPT, and Claude, debuting IndexAI Insights to deliver conversational index analytics powered by large language models.
Anthropic unveils a revised Responsible Scaling Policy with a Frontier Safety Roadmap, regular Risk Reports, and clearer separation between company commitments and industry recommendations.
ŌURA unveils a proprietary large language model for women’s health, combining clinical research and biometric data to deliver personalized, privacy-first AI guidance through Oura Advisor.
Meta plans to buy up to $100 billion in AMD GPUs and CPUs, issuing performance-based warrants as it ramps AI data centers and diversifies compute infrastructure.