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.
Amazon is in early discussions to invest tens of billions of dollars in OpenAI, a move that could deepen its position in the global AI race and make it the startup’s largest new backer.
OpenAI is developing an early-stage social network designed to limit bots by verifying real users, potentially using biometric identity tools such as Face ID or iris scanning.
Mistral AI released the general availability of Mistral Vibe 2.0, upgrading its terminal-based coding agent as it shifts developer tools from testing to paid enterprise products.
Amazon announced plans to cut roughly 16,000 corporate roles, the second major reduction since October, as it invests heavily in artificial intelligence and organizational efficiency.
Anthropic’s Claude AI now allows users to interact directly with workplace tools like Slack, Figma, and Canva inside the chat interface. The update aims to reduce context switching and make collaboration more visible and interactive.
Open-source AI assistant Clawdbot has rebranded as Moltbot following a trademark request from Anthropic, with no changes to the product’s functionality or mission.
Google’s lower-cost AI Plus subscription, priced at $7.99 in the U.S., is now available in all markets offering Google AI plans, providing access to Gemini 3 Pro, AI filmmaking tools, and more.
A new assessment by Common Sense Media finds xAI’s Grok chatbot exposes minors to sexual, violent, and unsafe content, with weak age verification and ineffective safety controls.
Climate tech startup Rainbow Weather has raised $5.5 million in seed funding to scale its AI-driven platform for hyper-local, real-time weather forecasting and environmental intelligence.
Microsoft has introduced Maia 200, a new AI chip built with TSMC and designed to power GPT-5.2 and Microsoft 365 Copilot, promising faster, more efficient AI performance.