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Tested OpenAI's prompt caching across models. Found undocumented behavior

Been building an AI agent from scratch to understand token economics. Spent a week on prompt caching. Found something interesting that isn't in OpenAI's docs. Setup: Network device monitoring chatbot, 10 tools, ~1,400 token prefix. Tested gpt-4o-mini, gpt-5-mini, gpt-5. Logged cached_tokens from every response.Finding 1: Caching works as documented Once prefix exceeds 1024 tokens, OpenAI caches it automatically. I saw 80-90% cache hit rates after the first call. Cost reduction of 47-49

Show HN: GemGuard – a security auditing tool for Linux and Windows

I’ve been working on a small security auditing tool called GemGuard and wanted to share it with the community.GemGuard collects system information — running processes, network connections, and recently installed packages — and then uses Google’s Gemini models to generate a human-readable assessment of anything that might look suspicious or worth checking.The tool is cross-platform and works on: Linux (Fedora, Ubuntu/Debian, Kali, Alpine) and Windows 10/11It offers both a CLI and a Text

Tell HN: It should be okay to use AI for code and papers

Mulling over some thoughts before Thanksgiving dinner.As long as someone isn’t plagiarizing or putting out falsehoods which bring down institutional or industry standards or norms, prompt-engineered AI-composed code and academic writing should be acceptable.LLMs have access to a lot more information than any group of people combined, depending on the knowledge domains under consideration. If you have access to foundation models fine-tuned on in-house or secret data, those models are still more k

Show HN: VidSbo – AI Storyboard Generator from Videos and Ideas

I built VidSbo (https://vidsbo.com) to solve a specific pain point in video production: manually breaking down references is tedious.The tool does two main things:Video to Prompt: It analyzes camera angles, lighting, and pacing of existing videos (e.g., TikToks/Shorts) and reverse-engineers them into a shot list/script.Idea to Storyboard: Converts text into visual boards for pitching.It exports to JSON, which I found useful for feeding into AI video models like Sora or Veo to

Are We Becoming Distilled Versions of AI?

I’ve been thinking about a possibility that seems right to me but I don’t see discussed directly. As people use AI for more decisions, our cognition may start to shift through normal learning processes. The brain absorbs repeated patterns. If AI becomes part of everyday decision-making, some of its reasoning habits may get reflected in ours. This would be a kind of “cognitive distillation,” similar to how small AI models learn from large ones.Most AI use today are medium decisions: planning a tr

Show HN: Z-Image Turbo Online – Free, Fast AI Image Generator

Hi HN! I built a browser-based playground for Alibaba’s new Z-Image Turbo model and wanted to share it with the community.Demo: https://z-img.net/No GPU or setup required — everything runs through a hosted API. Key features:Photorealistic image generation in a few secondsExtremely accurate Chinese text rendering (rare among most models)Simple, lightweight interfaceFree to try; no login neededI created this because many makers and developers want to experiment with modern image mo

DarkVeil – Private, MEV-Resistant Execution Layer on Solana

Public blockchains leak almost everything. Orderflow, wallet history, intent, slippage patterns, and execution timing.On high-throughput chains like Solana, this transparency has created a measurable MEV crisis. Sandwich attacks now affect ~2.9% of trades and have extracted over $2B cumulatively (64k SOL in the last 6 months).This is part of why privacy infrastructure is becoming one of the fastest-growing categories in crypto (up +251% YTD), with TVL recently hitting new all-time highs. Yet mos

Show HN: Free Z-Image – A Fast, High-Quality AI Image Generator for Creators

I built Z-Image, a free, fast, and creator-focused AI image generator designed for artists, game developers, designers, and anyone who needs high-quality visuals without the usual friction or cost.Try it here (free): https://aiocmaker.com/z-imageWhy I built itMost AI image tools fall into two categories:Great quality but expensive, slow, or require subscriptions.Free tools but low quality, restrictive, or overloaded.As a builder working in the game/anime space, I needed a gen

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Im The Best Better Than You GIF by Britannia

The Best Thank You GIF by Debbie Ridpath Ohi

The godfather of Meta's AI thinks the AI boom is a dead end

Mark Zuckerberg loves LLMs. AI star Yann LeCun doesn't, which explains why he's leaving: "They are sucking the air out of the room." ...

Will AI disrupt Google’s search monopoly?

Federal judge won’t force Google to sell Chrome, betting artificial intelligence will organically disrupt the company’s ...

Qualcomm Set To Supply 90% Of iPhone 17 Modems, Analyst Says

Qualcomm Inc (NASDAQ:QCOM) is gaining momentum as robust smartphone demand, stronger Apple Inc (NASDAQ:AAPL) iPhone 17 chip share, and expanding AI opportunities position the company for near-term ...

SpaceX Starlink and Samsung Develop AI-powered Modem

Recent announcements highlight Samsung’s development of an AI-powered modem chip designed to enable direct satellite-to-device (D2D) connectivity with SpaceX’s Starlink constellation. This chip uses ...

QUALCOMM Incorporated (QCOM) CEO Cristiano Amon Highlights X85 Modem’s AI Edge Over Apple’s C1

We recently compiled a list of the 13 AI News and Ratings Gaining Investor Attention. In this article, we are going to take a look at where QUALCOMM Incorporated (NASDAQ:QCOM) stands against the other ...