BLEU, or Bilingual Evaluation Understudy, is an automatic metric originally developed for machine translation. It compares short sequences of words in generated text with one or more reference translations, combines precision across several n-gram lengths, and applies a penalty when output is too short. BLEU is inexpensive and useful for comparing systems on the same dataset, but it does not directly measure factuality, fluency, meaning, or human preference. Valid alternative wording can receive a low score, while awkward text can match many reference phrases. Results depend on tokenization and implementation, so reporting should include the exact evaluation settings and, when possible, human judgment.
SpaceX is pitching investors on a vertically integrated AI strategy spanning chips, data centers and even compute satellites in orbit, bankrolled by Starlink’s profits.
SpaceX IPO sold 555.6 million shares at a fixed $135, nearly tripling the prior record as heavy demand bets on Musk despite steep losses and no path to profit.
Jeff Bezos’s industrial AI startup Prometheus raised $12 billion at a $41 billion valuation, emerging from stealth to build AI for engineering and manufacturing.
Google released DiffusionGemma, an open model that generates text in parallel blocks for up to four times faster output on local GPUs.
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.