AI Round-up: 19 August 2026

OpenAI temporarily paused reinforcement-learning training on its latest deployment models for two weeks while it hardened and red-teamed them against cyber-critical risks. The company also launched ChatGPT for Teens with stronger safeguards and expanded ChatGPT Ads across Europe.

Anthropic presented Claude-assisted protein-design and analytical-chemistry work as its supporting X post drew 1.1 million views. Elsewhere, Cerebras launched faster inference hardware, Etched reached a $21 billion valuation, Perplexity brought Computer into email and Hugging Face passed three million models.