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.
Meta has signed agreements with major news publishers to provide real-time global and entertainment news through Meta AI, its AI chatbot, enhancing user access to timely information.
Cristiano Ronaldo has taken an equity stake in Perplexity and will serve as a global partner, marking one of the most high-profile collaborations between elite sports and AI search technology.
OpenAI buys Neptune for under $400 million in stock, gaining advanced AI model tracking tools and strengthening capabilities in large-scale AI development.
The European Commission investigates Meta over AI restrictions in WhatsApp, raising concerns about competition and access for third-party AI providers.
OpenAI introduces an experimental “confessions” system that rewards honest self-reporting of mistakes in GPT-5 Thinking models, aiming to improve AI safety and visibility of failures.
AWS introduced new tools for enterprise customers to build and fine-tune custom large language models, alongside AI infrastructure offerings for on-premises deployments.
Google is testing a new Search feature that lets users move from AI Overviews into conversational AI Mode on the same results page. The rollout comes as OpenAI declares a “code red” and refocuses on ChatGPT.
AWS AI Factories bring dedicated AI infrastructure directly into customer data centers, enabling enterprises and governments to rapidly develop and deploy AI applications while meeting data sovereignty and regulatory requirements.
penAI has put advertising plans for ChatGPT on hold after declaring a “code red,” shifting its focus toward improving the AI assistant’s performance, stability, and security amid intensifying competition in the AI market.
DeepSeek has launched two new open-source AI models — V3.2 and V3.2-Speciale — that the company says match or exceed leading U.S. systems in advanced reasoning and tool-use tasks.