https://www.500xengineer.com/blog/ One post a day from Elon Zito: the newest AI tools and how to turn them into paid work. en-us Mon, 02 Nov 2026 23:01:21 GMT https://www.500xengineer.com/blog/ai-training-opt-out/ https://www.500xengineer.com/blog/ai-training-opt-out/ Mon, 02 Nov 2026 23:00:00 GMT Elon Zito Google, Microsoft and OpenAI back one shared robots.txt rule for opting out of AI training. None honor it yet. Here's the syntax, the dates and the catch. short robots-txt ai-training seo web-development https://www.500xengineer.com/blog/claude-explainer-boards/ https://www.500xengineer.com/blog/claude-explainer-boards/ Mon, 02 Nov 2026 14:00:00 GMT Elon Zito A YouTuber released 74 animated explainer boards he says he made with Claude Design and Claude Code, free under MIT. How they sync to your voice, the catch, and one way to sell it (my opinion). short claude claude-code motion-graphics youtube https://www.500xengineer.com/blog/hallucinations/ https://www.500xengineer.com/blog/hallucinations/ Mon, 02 Nov 2026 17:00:00 GMT Elon Zito In May 2025, an AI was asked one man's birthday three times and gave three wrong dates. How AI hallucinations happen, why they're rarer now, and how to catch the ones that still slip through. short llm ai-explained hallucinations prompt-engineering chatgpt https://www.500xengineer.com/blog/mistral-large-4-open/ https://www.500xengineer.com/blog/mistral-large-4-open/ Mon, 02 Nov 2026 20:00:00 GMT Elon Zito Mistral released the weights of Mistral Large 4, a 1T-parameter model it calls the best open-weight coding model. What it costs, the catch, and how to sell private setups built on it. short mistral open-weights ai-coding self-hosting https://www.500xengineer.com/blog/agensh-1024-agents-review/ https://www.500xengineer.com/blog/agensh-1024-agents-review/ Sun, 01 Nov 2026 04:00:00 GMT Elon Zito Microsoft Research's Agensh ran 1,024 coding agents with no boss and no human approvals. What it shipped, what the numbers cover, and what I built from it. long-form ai-agents multi-agent microsoft code-review benchmarks zstack https://www.500xengineer.com/blog/ai-stack-q1-vs-q4/ https://www.500xengineer.com/blog/ai-stack-q1-vs-q4/ Sun, 01 Nov 2026 14:00:00 GMT Elon Zito My pick for coding, images, video and voice in February 2026, what replaced each one by October, and the vendor dates, prices and specs behind every swap. short ai-tools claude image-generation ai-video text-to-speech https://www.500xengineer.com/blog/anthropic-agent-hours/ https://www.500xengineer.com/blog/anthropic-agent-hours/ Sun, 01 Nov 2026 20:00:00 GMT Elon Zito Anthropic's own report: agents log six times the hours of the employees running them, and human attention is now the bottleneck. Here's the service that creates. short anthropic claude ai-agents future-of-work agent-ops https://www.500xengineer.com/blog/best-of-the-week-2026-11-01/ https://www.500xengineer.com/blog/best-of-the-week-2026-11-01/ Mon, 02 Nov 2026 03:00:00 GMT Elon Zito This week's five most useful Shorts: Anthropic's agent hours report, Claude's machine-checked proofs, NVIDIA OpenShell, ArtCraft and the context window. roundup roundup ai-tools ai-agents claude anthropic https://www.500xengineer.com/blog/context-window/ https://www.500xengineer.com/blog/context-window/ Sun, 01 Nov 2026 17:00:00 GMT Elon Zito Your AI only sees what fits in one window. Why long chats lose early details, why the middle of a long prompt gets missed, and three habits that help. short llm ai-explained context-window long-context prompt-engineering https://www.500xengineer.com/blog/higgsfield-explainers/ https://www.500xengineer.com/blog/higgsfield-explainers/ Sun, 01 Nov 2026 23:00:00 GMT Elon Zito A 3D how-it-works account credits Higgsfield, and Higgsfield's new Content Factory turns one idea into a faceless Short. What it costs, the catch, and how to sell it. short ai-video higgsfield faceless-youtube app-marketing https://www.500xengineer.com/blog/next-word/ https://www.500xengineer.com/blog/next-word/ Sat, 31 Oct 2026 19:00:00 GMT Elon Zito Every word an AI writes is a weighted dice roll. Tokens, odds, top-k, top-p and temperature explained, plus when to turn the temperature down or up. short llm ai-explained sampling temperature prompt-engineering https://www.500xengineer.com/blog/ai-shorts-for-a-dime/ https://www.500xengineer.com/blog/ai-shorts-for-a-dime/ Fri, 30 Oct 2026 16:00:00 GMT Elon Zito My Shorts stack: Claude for research and scripts, ElevenLabs for my cloned voice, Remotion for animation. What each step costs and how to start. short ai-video remotion elevenlabs claude https://www.500xengineer.com/blog/artcraft-rea-app-cloning/ https://www.500xengineer.com/blog/artcraft-rea-app-cloning/ Fri, 30 Oct 2026 22:00:00 GMT Elon Zito ArtCraft rebuilt seven Adobe apps in Rust with Claude writing much of the code, and REA lets agents map how any app works. What it means for you. short claude reverse-engineering open-source legacy-software https://www.500xengineer.com/blog/gemini-4-carbon-leaks-vs-launch/ https://www.500xengineer.com/blog/gemini-4-carbon-leaks-vs-launch/ Fri, 30 Oct 2026 13:00:00 GMT Elon Zito Google announced Gemini 4 Carbon on October 28. I check each pre-launch leak against the launch, and how to get ready on Argon now. long-form gemini google ai-models benchmarks evals https://www.500xengineer.com/blog/why-openai-sells-ai/ https://www.500xengineer.com/blog/why-openai-sells-ai/ Thu, 29 Oct 2026 16:00:00 GMT Elon Zito A Hacker News thread asked why OpenAI doesn't start 100 companies itself. The best answers point to your real edge as a builder. short startups ai-business hacker-news https://www.500xengineer.com/blog/youtube-ai-twin/ https://www.500xengineer.com/blog/youtube-ai-twin/ Thu, 29 Oct 2026 22:00:00 GMT Elon Zito YouTube can build an AI avatar of your face and voice from one selfie and use it in Shorts. How it works, the rules, and a service idea. short youtube ai-video creators https://www.500xengineer.com/blog/claude-formal-proofs/ https://www.500xengineer.com/blog/claude-formal-proofs/ Wed, 28 Oct 2026 22:00:00 GMT Elon Zito Anthropic and Theorem had Claude prove 239 entry points crash-free and found hundreds of bugs. What was proven, the limits, and how to start. short claude security formal-verification https://www.500xengineer.com/blog/entire-benchmark-review/ https://www.500xengineer.com/blog/entire-benchmark-review/ Wed, 28 Oct 2026 11:00:00 GMT Elon Zito Former GitHub CEO Thomas Dohmke launched Entire, a Git forge built around Trails. What it does, what the 89x speed claim measures, and how to try it. long-form entire git code-review ai-agents benchmarks https://www.500xengineer.com/blog/nvidia-openshell/ https://www.500xengineer.com/blog/nvidia-openshell/ Wed, 28 Oct 2026 16:00:00 GMT Elon Zito NVIDIA's open-source OpenShell runs each AI agent in its own sandbox and keeps your real keys out of reach. How it works and how to try it. short ai-agents security open-source https://www.500xengineer.com/blog/gpt-6-1-terra-review/ https://www.500xengineer.com/blog/gpt-6-1-terra-review/ Wed, 28 Oct 2026 03:00:00 GMT Elon Zito GPT-6.1 Terra costs half of Sol per token. What OpenAI claims, what Artificial Analysis measured, the five catches, and when it saves you money. long-form openai gpt-6-1-terra llm-pricing benchmarks https://www.500xengineer.com/blog/jev-typed-decisions/ https://www.500xengineer.com/blog/jev-typed-decisions/ Tue, 27 Oct 2026 16:00:00 GMT Elon Zito Jev answers with typed decisions and confidence scores, and output tokens are free. What it is, its limits, and where to swap it in. short ai-models cost-optimization api https://www.500xengineer.com/blog/videogen-model-1/ https://www.500xengineer.com/blog/videogen-model-1/ Tue, 27 Oct 2026 22:00:00 GMT Elon Zito VideoGen announced Model 1 and a $1M free credits program on Oct 20. What's claimed, what's confirmed, and how to write a strong application. short ai-video generative-video creators https://www.500xengineer.com/blog/claude-duet/ https://www.500xengineer.com/blog/claude-duet/ Mon, 26 Oct 2026 22:00:00 GMT Elon Zito Claude Duet sends a morning brief, chases invoices and preps payroll, and asks before it sends or pays. What it does and how to sell setup. short claude ai-agents automation small-business https://www.500xengineer.com/blog/php2shell/ https://www.500xengineer.com/blog/php2shell/ Sun, 25 Oct 2026 22:00:00 GMT Elon Zito Wiz disclosed PHP2Shell on Oct 21: unauthenticated RCE in a decade of PHP releases, found with frontier models. What to patch and how to check. short security php wordpress ai-research https://www.500xengineer.com/blog/litellm-hijacked/ https://www.500xengineer.com/blog/litellm-hijacked/ Sat, 24 Oct 2026 22:00:00 GMT Elon Zito A poisoned LiteLLM release sat on PyPI for about 100 minutes on Oct 21. Here's how to check for cook.pth, clean up, and rotate your keys. short security supply-chain python ai-tools