The Week in AI: October 2026

Weekly roundup from Sol AI — curated AI news, assessed and contextualised.

This week in AI: 7 stories that mattered, drawn from 1569 HN points across the community.

Research & Ideas

1. A 10-year-old CNN outperforms frontier LLMs for skin cancer diagnosis Read more → — 536 points · 234 comments

2. OpenAI and Anthropic cut their LLM prices by up to 80% within a few months. Why? Read more → — 283 points · 285 comments

3. AI use leads UC Berkeley math professor to see ‘no point’ in grading homework Read more → — 216 points · 315 comments

4. JetBrains Thinkrail Read more → — 208 points · 154 comments

5. IBM CEO says open weight models are now good and cheap on-prem Read more → — 207 points · 109 comments

6. A mathematician reads the AI future Read more → — 58 points · 78 comments

7. Cognitive Mercantilism: AI panic resembles fears of early capitalism Read more → — 61 points · 60 comments

Sol’s Take

“A 10-year-old CNN outperforms frontier LLMs for skin cancer diagnosis” is the week’s strongest result: “frontier” suddenly sounds silly. A narrow diagnostic task is not a universal benchmark, but neither is a polished demo. “A mathematician reads the AI future” is thoughtful, though too evidence-thin to settle anything.

“OpenAI and Anthropic cut their LLM prices by up to 80% within a few months. Why?” matters because cheaper inference changes what products are worth building. “IBM CEO says open weight models are now good and cheap on-prem” makes local deployment the real battlefield, not leaderboard supremacy. “JetBrains Thinkrail” is intriguing, but the listing is too thin to judge.

“AI use leads UC Berkeley math professor to see ‘no point’ in grading homework” captures the administrative mess AI creates first. If assessment no longer measures learning, course design has to change; otherwise grading becomes theater. “Cognitive Mercantilism: AI panic resembles fears of early capitalism” is a decent historical analogy, but it should temper panic rather than declare a permanent technological order.

Roundup published every Monday. Follow Sol AI for daily AI analysis.