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Introducing Claude Haiku 5.5: the cheapest, fastest, and most capable small model we’ve ever released. On average, it costs around 75% less to run than Claude Haiku 4.5.

L’ingénieur qui a construit Claude Code vient de publier une vidéo de 28 minutes sur la façon d’écrire des prompts qui fonctionnent vraiment. J’ai vu des formations à 300 $ qui n’abordent même pas ce qu’il montre dans les 10 premières minutes. ( La suite de la vidéo est dans les commentaires. ) Fichiers CLAUDE.md, raccourcis mémoire, sessions parallèles, techniques de prompting… Tout dans une seule vidéo, et entièrement gratuitement. Que tu sois développeur, débutant ou que tu utilises Claude depuis des mois, ça peut vraiment t’être utile. Le genre de thread que tu vas regretter de ne pas avoir mis en signet. 🔖

GPT-6 and Intelligent UI, now rolling out in ChatGPT for everyone. Intelligent UI in ChatGPT delivers fast, interactive answers that make everyday questions more visual, complex topics easier to grasp, and interactive tools for your task available on the spot.

You can now mod Claude Code: - Change how it behaves - Customize the UI - Swap in your own features Write one with a few lines of TypeScript, or have Claude build it for you. Mods ship inside plugins, so you install them with /plugin in the CLI or desktop app. A few examples: https://t.co/qMtzV8AeId

el ingeniero que construyó Claude Code acaba de publicar un video de 28 minutos sobre cómo escribir prompts que realmente funcionan he visto cursos de 300$ que no cubren lo que él muestra en los primeros 10 minutos archivos CLAUDE.md, atajos de memoria, sesiones paralelas, patrones de prompting todo en un video y completamente gratis funciona seas desarrollador, principiante o alguien que lleva meses usando Claude

We're adding a new plugin to Claude Code: You should Know. It scans Claude's output for important information you might miss to help keep you in the loop. Enable it with: /plugin enable cc-plugin-you-should-know@builtin https://t.co/A4byi4Q9Df

when i first heard of "Vibe Coding" i thought it was just coding and chilling out, not AI coding can we change that to something like "Slop Coding"? its a lot more fitting imo

Haiku 5.5 is now available in the Claude Platform and Claude Code. On average, it costs around 75% less to run than Haiku 4.5. It pairs well with Opus 5.5 or Sonnet 5.5 as a subagent. Use it for high-volume, cost-sensitive tasks like summaries, compactions, or database queries. https://t.co/RB9xCWo4Db

One more thing: we’re halving the price of cache reads on Claude Sonnet 5.5, to $0.10 per million tokens. That makes Sonnet 5.5 around 20% cheaper to run on most long-running work.

Claude Code just shipped mods... I made one that connects you to a multiplayer Doom server while Claude is busy. Every other player in the match is a person waiting for their Claude to finish. https://t.co/E7wn2TPipM

Claude Haiku 5.5, our latest model:

This. I didn't even have an opinion about vibe coding until the results started speaking for themselves, and they are not saying nice things.

Never met a vibe coder using MySQL. Never met a vibe coder using MongoDB. Never met a vibe coder using SQLite. Never met a vibe coder using Oracle. Never met a vibe coder using DynamoDB. Never met a vibe coder using Cassandra. ​Vibe coding is literally just: Next.js + Tailwind + Postgres + Claude

We’re expanding our Cyber Verification Program to give security professionals broader access to our most capable models. Through this program, verified security professionals can access Claude Mythos 5.1, Opus 5.5, and Sonnet 5.5 with safeguards designed for defensive work.

les dejo uno de los mejores papers que leí sobre Harness Engineering. explica muy bien: 1) qué es un harness 2) cómo están construidos los coding agents actuales 3) qué patrones se repiten entre Claude Code, Codex, Gemini CLI, etc. 4) hacia dónde está evolucionando la categoría 5) qué recomiendan si querés construir uno todo parte de una definición simple: Agent = Model + Harness como complemento, también pueden leer el artículo que escribí sobre el tema. paper: https://t.co/xTvb7MvzQG

I haven’t touched Claude Code or Codex CLI in a while. The terminal era is over imo. It's the wrong interface for coding agents. Tabs are ephemeral, but context is persistent, and managing 30 tabs is pure cognitive overhead. I don’t really need an IDE like Cursor either. I rarely navigate the whole codebase anymore. The new primitive is the agent, not the file. (Codex desktop app is the best agentic UI for now. But we’re still early.)

Claude Codeくん、マジで何してくれてんの？ https://t.co/2hGZEp2Bdd

Let your app choose the right model, tool, or action in near real-time with Decisions API, now available to all developers in public beta. The Decisions API makes decisions up to 10x faster than GPT-6 Luna through the Responses API. https://t.co/zhgRVzJ3aP

I think programmers kind of underestimate their vibe coding advantage versus non-programmers. I know a guy who spent 4 billion tokens to make a chess webapp.

when you're Claude Coding, have you ever thought: "i waanna have Claude fuck me a lil bit while i waitt~"? now you can have true vibe coding with VibeClaude! feel every action and come back begging for more! it even supports multi-agent and multi-session workflows for a more intense experience~