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.
Xiaomi MiMo Code is a free, MIT-licensed coding agent with persistent memory and parallel reasoning, forked from OpenCode and aimed at hundred-step tasks.
GPT-5.6 is expected in June with what OpenAI calls meaningful gains over GPT-5.5, arriving alongside a ChatGPT overhaul and shifting public-listing plans.
OpenAI is weighing steep cuts to its token prices to win users from Anthropic, signaling a possible price war as both companies head toward IPOs.
Anthropic CEO Dario Amodei published an essay urging binding, FAA-style safety testing for frontier AI models, marking a shift from the company’s earlier focus on transparency.
Google AI Plus adds Gemini 3.1 Pro, Omni Flash video and family sharing while undercutting pricier ChatGPT and Anthropic subscription tiers in the US market.
More than 600 OpenAI employees sold a combined $6.6 billion in shares in October, marking one of the largest pre-IPO payouts in Silicon Valley history.
OpenAI is negotiating a 10-gigawatt Ohio data center lease that could cost at least $500 billion, with Nvidia guaranteeing the financing in one of the largest AI infrastructure bets yet proposed.
SpaceX has released its most detailed look yet at a planned orbital AI data center satellite, unveiling a 70-meter-wingspan structure during the same week the company is pitching investors on a $1.75 trillion public listing.
Anthropic has released Claude Fable 5, its most capable model available to the general public, alongside Claude Mythos 5 – an identical underlying model with key safety restrictions removed, available only to approved cybersecurity and research partners.
Apple fell 3% on Tuesday in its worst single-day decline since February, as investors sold off following Monday’s WWDC announcements amid concern that Siri AI lacks a confirmed launch date and faces regulatory delays in two major markets.