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.
AI companies are rehearsing potential crisis responses, Axios reports. OpenAI says the scenarios are not inevitable, while recent incidents test safeguards.
ChatGPT can now build interactive diagrams, maps, calculators and games inside answers. Intelligent UI is rolling out with GPT-6 across free and paid plans.
Anthropic’s OSS Scanner uses models including Claude Mythos to check eligible open-source projects. Maintainers receive findings without human review.
OpenAI’s annualized revenue was nearing $50 billion, below earlier reports near $70 billion. Different treatment of partner sales helps explain the gap.
Google Cloud’s Gemini agent can create subagents and use Claude alongside Gemini. Background delegation and third-party models remain in early access.
Pavel Rabtsevich used Claude Code to investigate a possible planet 116 light-years away. TESS has approved follow-up observations, but discovery is unconfirmed.
Anthropic’s new policy bans extreme, repeated abuse of Claude from November 12, while excluding ordinary frustration, disagreement, fiction and testing.
Jeff Bezos says AI could let families live on one income or work three days a week, but has offered no timetable or plan for sharing the gains.
Manus raises more than $500 million in its first funding round since separating from Meta, with Boyu Capital and IDG Capital leading the financing.
Claude Haiku 5.5 cuts costs for everyday AI tasks, with API rates up to 20x below Sonnet and Anthropic-reported benchmark gains over GPT-6 Luna.