The HackerNoon Newsletter: Weekly AI Startup Funding: October 20-25, 2025 (10/28/2025)

The HackerNoon Newsletter for October 28, 2025, highlights significant tech news and historical events. Key AI startup funding for the week of October 20-25, 2025, reached over $3.6 billion across various sectors. Microsoft's new SAMBA model is revolutionizing AI's long-context learning capabilities by efficiently handling millions of tokens. Understanding transaction times in cryptocurrency is crucial, as factors like network congestion and fees influence speed. A groundbreaking AI developed by researchers can interpret cellular data like sentences, leading to a novel cancer discovery. This AI, C2S-Scale, is built upon Google's Gemma family of open models. HackerNoon encourages its readers to contribute by writing, which helps solidify technical knowledge and build credibility. For those facing interview challenges, HackerNoon offers resources to answer common questions. The newsletter aims to provide valuable reading material and fosters community engagement on "Planet Internet."