| 1. | DeepSeek v4.1 Flash(twitter.com) |
| 670 points by Liwink 9 hours ago | 366 comments | permalink | |
tl;dr: DeepSeek has announced DeepSeek-V4.1-Flash, the smallest model in a new architecture family featuring native visual understanding. The company claims improvements in capability, inference speed, and throughput, with the architecture designed to scale to larger models. | |
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| 2. | iPhone Duo(apple.com) |
| 1305 points by thecosmicfrog 21 hours ago | 2268 comments | permalink | |
tl;dr: Apple's iPhone Duo is the company's first foldable iPhone, featuring a 7.6" inner Super Retina XDR display with nano-texture finish and a 5.4" outer display sharing the same aspect ratio, powered by the A20 Pro chip with a dual-battery system delivering up to 31 hours of video playback. It includes a 48MP dual Fusion camera system with foldable-specific features like Smart Take, Duo Preview, and Duo FaceTime, uses Touch ID in the side button, and is eSIM-only. Available October 23, 2026, starting at 256GB with titanium construction and IP68 rating. | |
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| 3. | Show HN: What if the speed of light was 5 km/h?(rivendell.dmitrybrant.com) |
| 493 points by dmitrybrant 14 hours ago | 206 comments | permalink | |
tl;dr: An interactive browser demo simulates walking through a park where the speed of light is set to 5 km/h, making relativistic effects visible at ordinary walking speeds. Users can move with WASD/arrow keys and toggle effects like length contraction, time dilation, Terrell rotation, and Doppler shifting (blueshift ahead, redshift behind). | |
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| 4. | Shopify acquires Tailwind(tailwindcss.com) |
| 1097 points by EdwinHoksberg 1 day ago | 426 comments | permalink | |
tl;dr: Tailwind CSS is being acquired by Shopify, which has been a major early adopter and heavy user of the framework. The open-source projects remain MIT-licensed and actively maintained, but Tailwind is winding down its commercial business—existing Tailwind Plus and ui.sh customers keep access, but new signups are closed as the team refocuses on Tailwind CSS within Shopify. | |
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| 5. | What do Visa and Mastercard do? An intro to card networks(tautology.town) |
| 603 points by evakhoury 1 day ago | 364 comments | permalink | |
tl;dr: Visa and Mastercard operate card networks with four core functions: routing transaction messages between issuers and acquirers via their telecom infrastructure, coordinating banking relationships to settle payments (including across currencies), setting interchange fees and incentives that shape network behavior, and enforcing rules plus arbitrating disputes. Notably, in a typical 2.5% US merchant fee, the issuing bank pockets ~2% while the network itself takes only ~0.15%—which is why issuers fund lavish rewards programs. EU regulation caps interchange at 0.3%, explaining the region's weaker rewards culture and stronger alternative payment adoption. | |
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| 6. | Growing proof that autonomous cars save lives(spectrum.ieee.org) |
| 401 points by bookofjoe 22 hours ago | 709 comments | permalink | |
tl;dr: IIHS and Waymo studies show autonomous vehicles crash significantly less than human drivers, with Waymo robotaxis involved in 68% fewer crashes overall and 81% fewer injury crashes per mile across four U.S. cities. ADAS features like automatic emergency braking are also cutting pedestrian crashes by 27% and rear-end crashes by 50%. However, the AV industry still lacks national safety standards and consistent crash reporting, prompting NHTSA to partner with SAE on a three-year effort to develop performance benchmarks. | |
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| 7. | No Man's Sky Cosmos(nomanssky.com) |
| 424 points by Limb 1 day ago | 428 comments | permalink | |
tl;dr: No Man's Sky's 10-year anniversary update, Cosmos (7.0), overhauls deep-space exploration with asteroid belts, derelict hulks, outposts, reachable stars, and an interactive star system map, plus expanded six-degrees-of-freedom spacewalking and a Corvette Tractor Beam. Players can now become Space Station directors—customizing interiors, exteriors, and adding rooms—and form or join galactic alliances with leaderboards. The update also adds orbital base construction, a nostalgia-themed "Our Journey Continues" expedition with developer commentary from Sean Murray, and significant rendering upgrades including DLSS 4.5, XeSS 3, and improved terrain tessellation. | |
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| 8. | GPT-6 Astra, looped transformers, and hidden reasoning(magazine.sebastianraschka.com) |
| 482 points by ModelForge 1 day ago | 157 comments | permalink | |
tl;dr: OpenAI's rumored GPT-6 Astra reportedly uses "looped transformers" (recurrent depth), an architectural technique where intermediate representations pass through the same transformer blocks multiple times, effectively increasing depth without adding parameters—an approach seen in models like Nanbeige, Ouro, and Universal Transformers. The author argues this looping likely isn't the reason Astra produces shorter/less monitorable reasoning traces; more capable models simply need less scratchpad, similar to how larger models in a family use fewer tokens than smaller siblings. Astra's biggest practical leap appears to be in computer-use tasks, likely trained via RL on OpenAI's reported fleet of Mac Minis. | |
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| 9. | AirPods 5(apple.com) |
| 493 points by awad 22 hours ago | 426 comments | permalink | |
tl;dr: Apple announced AirPods 5, priced at $129 ($149 with wireless charging case), featuring open-ear Active Noise Cancellation that reduces external noise up to 50% more than AirPods 4, a new multiport acoustic architecture, and improved Adaptive EQ. They integrate with Siri AI (rolling out in iOS 27 beta) for hands-free personal context queries, head gesture responses, and Live Translation. Pre-orders start today with in-store availability September 18. | |
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| 10. | iPhone 18 Pro and iPhone 18 Pro Max(apple.com) |
| 393 points by meetpateltech 22 hours ago | 443 comments | permalink | |
tl;dr: Apple announced the iPhone 18 Pro and Pro Max, featuring a 48MP Fusion Main camera with variable aperture, the A20 Pro chip with a new vapor chamber for improved sustained performance, and a smaller Dynamic Island. The Pro Max delivers Apple's largest-ever battery life increase, with eSIM-only models gaining extra capacity. Starting at $1,199 and $1,299 respectively, they ship September 18 with iOS 27, Apple Intelligence, and a beta Siri AI (not available in the EU at launch). | |
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| 11. | Automattic's board forces CEO Matt Mullenweg into leave of absence(techcrunch.com) |
| 398 points by LeoPanthera 16 hours ago | 265 comments | permalink | |
tl;dr: Automattic's board voted to place CEO Matt Mullenweg on paid leave against his will, installing CFO Mark Davies as interim CEO; Mullenweg says he was given the resolution 50 minutes before the meeting and denied time for legal review. The move follows a turbulent stretch including the ongoing WP Engine lawsuit, mass severance-driven departures in 2024, and a 16% layoff in April 2025. Mullenweg remains on the board and continues to lead the WordPress.org open-source project. | |
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| 12. | Desert Ant Labs: local, fast models that run on device(desertant.com) |
| 472 points by willwhitedc 1 day ago | 98 comments | permalink | |
tl;dr: Desert Ant Labs, a European AI startup, launched 18 small, specialized on-device models for audio, vision, and text tasks—accessible via a single SDK for Swift, Kotlin, and JavaScript, and free up to 100k monthly active devices. Their models include Voz (transcription 4.7x faster than Whisper), Clear (9MB audio enhancement), Redact (PII masking in 27 languages), and Tongue (2MB language ID), all claiming to outperform much larger cloud and local alternatives on speed and often quality. The team previously built the Detail video app and trained these models to replace their own cloud API dependencies. | |
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| 13. | Qwen 3.8 follows GPT-5.5 Pro reasoning prefills(gist.github.com) |
| 229 points by wsxiaoys 22 hours ago | 90 comments | permalink | |
tl;dr: When prefilled with the first 1% of GPT-5.5 Pro's reasoning, Qwen3.8 A95B's output overlap with the teacher's answer jumped +18.18 points (including +27 on STEM), while DeepSeek V4 Flash, Inkling, and Kimi K3 barely budged. Since Qwen showed little response to Opus 4.8 prefills in a prior experiment, the author suggests Qwen may have been trained on outputs from GPT-5.5 Pro or a closely related model. | |
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| 14. | Apple Watch Series 12(apple.com) |
| 266 points by Lealen 22 hours ago | 349 comments | permalink | |
tl;dr: Apple announced the Apple Watch Series 12, featuring a new S11 chip, an upgraded Health Sensing System with more accurate heart rate and HRV tracking, and a readiness score that feeds into a redesigned Health app with a "Longevity" tab and Health Age metric. New Audio Intelligence features (coming later in 2026) include Sound Recognition, Live Rewind (replays the last 15 seconds of conversation as text), and Siri Recap for conversation summaries, plus Siri AI powered by Apple Intelligence on the wrist. It starts at $399, with pre-orders today and availability September 18. | |
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| 15. | How I advertise malicious software on Google Ads(xlii.space) |
| 421 points by xlii 1 day ago | 256 comments | permalink | |
tl;dr: Summary not available | |
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| 16. | GNU Radio in the browser(gnuradioworld.com) |
| 213 points by kristianpaul 1 day ago | 27 comments | permalink | |
tl;dr: GNU Radio Companion has been ported to run entirely in the browser, with the DSP stack and Qt GUI sinks compiled to WebAssembly. It reads/writes standard .grc files, renders live spectrum, waterfall, and constellation plots, and requires no Python, install, or server. It can also communicate with RTL-SDR, PlutoSDR, and HackRF devices via WebUSB. | |
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| 17. | OpenAI might have stolen another major proof(twitter.com) |
| 272 points by tamnd 11 hours ago | 160 comments | permalink | |
tl;dr: Mathematician Andreas Thom alleges OpenAI may have trained its Astra model on private conversations between him and Gábor Kun regarding Gromov's soficity conjecture, which OpenAI later claimed Astra had solved independently. Combined with similar accusations from Levent Alpöge and Tristan Buckmaster, the author argues this suggests a pattern of OpenAI passing off unpublished human mathematical work as AI-generated breakthroughs. | |
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| 18. | What will our economic future look like?(anthropic.com) |
| 222 points by oumua_don17 1 day ago | 429 comments | permalink | |
tl;dr: Anthropic's Economics team built a scenario explorer modeling how AI could reshape the US economy by 2030, based on user inputs about AI capabilities, adoption, and productivity. In modest-to-substantial scenarios, GDP grows 1.6-8.3% with unemployment staying within historical norms, while an "extreme" scenario shows 32% GDP growth but significant knowledge-worker displacement, stagnant or declining wages for those workers, and a shift of economic gains from labor to capital. The model omits factors like robotics, policy responses, and demand shocks, and is presented as a thinking tool rather than a forecast. | |
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| 19. | Muse – Meta’s personal AI agent(ai.meta.com) |
| 648 points by yks 1 day ago | 725 comments | permalink | |
tl;dr: Summary not available | |
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| 20. | We built our house for LAN parties (2024)(lanparty.house) |
| 586 points by fittingopposite 4 days ago | 364 comments | permalink | |
tl;dr: Cloudflare engineer Kenton Varda and Jade Wang built a custom house in Austin featuring 12 wall-mounted PCs in the basement plus 6 more in the office, all fold-away, with 20 identical netbooted machines (i5-13600KF, RTX 4070, 32GB RAM) running from a shared disk image in a dedicated server room with its own A/C. Additional features include DDR pads in the floor, extensive Cat6 wiring with UniFi networking, fiber-optic DisplayPort/USB runs up to 100ft to the stations, cat doors throughout, and a roof deck. It's a follow-up to Varda's 2011 Palo Alto LAN house, scaled up for family life. | |
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