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.
IBM shares sank about 23% after it warned that preliminary second-quarter results fell short, as clients diverted spending toward memory and servers ahead of price increases.
Google DeepMind CEO Demis Hassabis proposed a US-led standards body to test the most powerful AI models before release and coordinate an industry slowdown if risks mount.
Google unveiled SensorFM, a health AI trained on over a trillion minutes of smartwatch data from 5 million people, that predicts 35 health measures from cardiovascular risk to depression.
Cloudflare launched Precursor, a bot-detection system that watches how visitors move, click and type across a whole session to tell humans from increasingly capable AI agents.
Tencent is in talks to become Manus’s largest shareholder as investors race to reverse Meta’s $2 billion purchase of the AI agent startup, after Beijing ordered the deal undone.
SpaceXAI’s Grok 4.5 tied GPT-5.6 Sol for first on the SWE-Atlas-QnA coding benchmark, a narrow win that highlights the model’s real edge: efficiency and low cost.
A South Korean developer says Anthropic’s billing system tried to charge him $16.6 million despite being on the free plan with zero API usage, one of several billing complaints.
Anthropic extended free Claude Fable 5 access to July 19, its second extension in a week, as OpenAI removed usage caps and made GPT-5.6 Sol cheaper to run.
Apple sued OpenAI for trade secret theft, alleging former employees now at OpenAI stole confidential hardware information to build its first AI device. OpenAI denies it.
SK Hynix raised $26.5 billion in its Nasdaq debut, the largest US listing ever by a foreign company, as investors rushed to buy into the AI memory chip boom.