Midjourney Unveils Fast, Low-Cost Full-Body Scanner; Perplexity Launches 'Brain' Self-Improving Context Graph; Block's AI System Automates 15% of Code Changes

Key Takeaways

1. Midjourney's new scanner is 100x faster and 10x cheaper than MRI, enabling 60-second full-body 3D scans without radiation.
2. Perplexity introduced 'Brain', a self-improving context graph for all Perplexity Max subscribers.
3. Block's internal AI system 'Builderbot' now handles 15% of production code changes, processing 200k operations daily.
4. Noam Shazeer joins OpenAI, fulfilling Sam Altman's decade-long goal.
5. Replit Agent adds voice interaction and deep integration with Claude.
6. YC's per-batch revenue continues to rise, debunking claims of decline.

1. AI Models, Infrastructure, and Developer Tools

1. Perplexity launches 'Brain' self-improving context graph. Aravind Srinivas announced 'Brain' that actively updates fresh context overnight and feeds it to every task on Computer, providing state and self-improvement capabilities. Available to all Perplexity Max subscribers. — via 1
2. Yohei Nakajima publishes paper on ActiveGraph for auditable self-improvement. The paper 'Regimes' demonstrates a gated self-improvement loop using ActiveGraph, with reproducible results on LongMemEval. He predicts 2025 as the year of agent memory and 2026 as the year of stateful agents. — via 1 2
3. Replit Agent adds voice interaction and deep Claude integration. Amjad Masad announced voice collaboration with the Agent, and a forthcoming Claude Design integration that allows sending designs to Replit for building, plus a Replit Connector for Claude to delegate tasks. — via 1 2
4. Grok Imagine 1.5 introduces video generation. Elon Musk showcased Grok Imagine 1.5 with image-to-video capabilities, along with behind-the-scenes footage. — via 1 2
5. Guillermo Rauch presents 'V' personal agent template. Built on Eve, it supports iMessage, Slack, and Web, with GitHub and Linear integrations and long-term memory. — via 1

2. Midjourney's Medical Breakthrough and Scanner

1. Midjourney unveils a revolutionary full-body scanner. Andrew Wilkinson shared details: the device is 100x faster and 10x cheaper than MRI, uses ultrasound, completes a full-body 3D scan in 60 seconds without radiation, and was built by a 9-person team. Plans include operating it as a spa-like service. — via 1
2. Midjourney announces formation of 'Midjourney Medical'. Multiple sources confirm the new medical division, with Tobi Lütke calling it one of the most legendary pivots. Greg Isenberg also highlighted the bootstrapped success of Midjourney. — via 1 2

3. Key Industry Insights and Data

1. Block's internal AI system automates 15% of production code changes. Jack Dorsey shared that 'Builderbot' coordinates agents across the codebase, executing 200k operations daily and merging 1500 PRs weekly, compressing project timelines from months to days. — via 1
2. YC's per-batch revenue continues to climb, debunking 'decline' claims. Garry Tan presented data showing consistent revenue improvement, and emphasized the era of full-stack founders combining technical and business skills. — via 1
3. Snap acquisition thesis: 8x user valuation gap vs Meta. Greg Isenberg outlined a $7.8B market cap, 474M DAU, $16/user valuation (vs Meta's ~$130), suggesting four turnaround strategies including live shopping, standalone app studios, teen financial layer, and built-in gaming network. — via 1
4. Zero-click search rates vary significantly by country. Rand Fishkin's study with Similarweb found highest zero-click rate in UK, highest search efficiency in France, and lowest zero-click rate in Germany. — via 1
5. B2B cold outreach is dying; shift to consumer marketing. Clifton Sellers predicts cold outreach becomes irrelevant within two years, urging B2B companies to adopt consumer marketing strategies. — via 1

4. People and Company Moves

1. Noam Shazeer joins OpenAI after decade-long pursuit. Sam Altman expressed excitement, calling Shazeer one of the people he most wanted to work with since OpenAI's founding. — via 1
2. Shopify Spring '26 Edition launches 200+ updates including Agentic Storefronts. Tobi Lütke announced the release with Catalog API, UCP, and a personalized shopping assistant in the Shop app. — via 1
3. Alexis Ohanian acquires Onita Athlete for official college sports cards. The company will produce autographed, American-made cards with NIL payments to athletes and royalties to schools. — via 1
4. X becomes #1 news app in the UK. Elon Musk highlighted that traditional media are attacking him due to loss of control, and that X provides the truth the public needs. — via 1