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.
Google is rolling out Gemini 3.1 Pro across consumer, developer, and enterprise products, touting major gains in reasoning performance and benchmark results.
Contra unveiled Contra Payments, a new platform enabling creatives to sell products and services directly to both humans and AI agents, marking a shift toward “agentic commerce.”
OpenAI is reportedly closing a funding round expected to exceed $100 billion, potentially boosting its valuation beyond $850 billion as it invests heavily in AI infrastructure.
India’s AI Impact Summit in New Delhi delivered more than $250 billion in investment commitments, spanning data centers, AI infrastructure, and global expansion plans.
Bill Gates canceled his keynote appearance at India’s AI Impact Summit hours before speaking, as renewed scrutiny over past ties to Jeffrey Epstein intensified following U.S. Justice Department disclosures.
Fei-Fei Li’s World Labs secured a $200 million investment from Autodesk as part of a broader $1 billion round, deepening collaboration on AI systems that generate and reason about 3D environments.
Mistral AI CEO Arthur Mensch said more than half of today’s enterprise software could be replaced by AI, intensifying investor concerns about the future of SaaS business models.
Anthropic has released Claude Sonnet 4.6, upgrading its mid-tier AI model with stronger coding, computer use, and long-context reasoning while keeping pricing unchanged.
Perplexity says it will not reintroduce advertising into its AI answers, distancing itself from rivals that are experimenting with ads to offset rising costs.
Apple is developing multiple AI-powered wearable devices, including smart glasses, an AI pendant, and camera-enabled AirPods, according to a new report from Bloomberg.