https://scienceai.news/article/openai-cancels-gpt-61-astra-launch-over-alignment-safety-concerns/ ScienceAI News en 2026-10-20T23:07:06Z OpenAI cancels GPT-6.1 Astra launch over alignment safety concerns https://scienceai.news/article/tenstorrent-raises-15b-at-62b-valuation-to-fuel-ai-chip-push/ ScienceAI News en 2026-10-19T16:01:30Z Tenstorrent raises $1.5B at $6.2B valuation to fuel AI chip push