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.
The US and China plan to hold their first official AI talks under Trump in September, aiming to manage the risks of each other’s frontier models, with Anthropic’s Mythos a key concern.
A federal judge gave final approval to Anthropic’s $1.5 billion settlement with authors over pirated books used to train Claude, the largest copyright recovery on record.
Google is designing Frozen v2, a chip that hardwires parts of its Gemini model into silicon and could serve six to ten times more tokens per watt, targeting deployment by 2028.
Opponents of the AI data center boom held 142 protests across 42 states, the first nationwide backlash against a buildout that crosses political lines and worries local communities.
Ethereum’s Vitalik Buterin argued the gravest AI risk is not rogue superintelligence but a few companies or governments seizing control of it, in a widely shared thread on AI’s future.
Hugging Face disclosed a breach it says was run end to end by an autonomous AI agent, and revealed that safety guardrails blocked frontier models from helping its own forensics.
Alibaba previewed Qwen 3.8, a 2.4-trillion-parameter model it claims is second only to Anthropic’s Fable 5, days after Moonshot’s Kimi K3 rattled markets, though no benchmarks back it.
Economists warn AI’s biggest near-term danger may be fiscal: if it displaces high-earning workers, income-tax revenue could fall sharply while welfare costs rise, straining public budgets.
Anthropic’s new ad “There’s hope in hard questions” drew mockery, including from Sam Altman, for pairing bleak imagery like a cemetery with questions about whether AI can be trusted.
SoftBank plans to sell about ¥60 billion of notes in Japan this month, its latest raise to fund a mounting AI bet that includes nearly $65 billion committed to OpenAI.