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.
Mistral has released Voxtral TTS, an open-source speech model designed for real-time voice agents and enterprise use cases, intensifying competition in voice AI.
Google has introduced TurboQuant, a new compression algorithm that reduces memory usage in AI systems while maintaining accuracy, improving performance in large models and search.
President Donald Trump has appointed top tech executives, including leaders from Meta, Nvidia, and Oracle, to a council shaping U.S. AI policy and strategy.
OpenAI will discontinue its Sora video app, ending a major partnership with Disney and signaling a retreat from generative video amid legal and cost pressures.
OpenAI will discontinue its Sora video-generation app, signaling a strategic shift toward core AI products amid rising competition and high compute costs.
New research shows that telling AI models they are “experts” can reduce accuracy in tasks like coding and math, while improving safety and alignment outcomes.
OpenAI has overhauled ChatGPT’s shopping features, focusing on product discovery after scaling back its Instant Checkout initiative. The update introduces visual browsing and merchant integrations.
Anthropic has upgraded Claude with the ability to control a user’s computer and complete tasks autonomously. The move intensifies competition in the fast-growing AI agent market.
Alibaba has unveiled a new CPU designed for AI agents, focusing on inference and customizable workloads. The chip reflects China’s push to build domestic AI infrastructure.
Nvidia CEO Jensen Huang claims AGI may already exist, reigniting debate over how artificial general intelligence is defined and measured across the industry.