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Charlie Hills

@charliejhills • 15,423 subscribers

I help you (actually) use AI | [email protected]

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Anthropic just published its official prompting guide for Opus 5.5. If you're still writing prompts the way you did for Opus 5, you're paying more and getting less. Here's what changed 👇 1. Default to medium effort Medium on 5.5 already outperforms high on Opus 5, at a lower cost. Maxing it out by habit just burns tokens. 2. Drop "think step by step" Reasoning is built in now. The model decides how much thinking a task needs, so asking it to think harder adds nothing. 3. A check-in isn't a finish line On long runs, it sends progress updates along the way. If it stops to report, tell it to keep going. 4. Fence off anything you paste Put emails, docs, and web text in clearly labeled sections or tags. That way it can tell your instructions apart from the material it's working on. 5. Retire your image workarounds Those custom chart readers and OCR steps you built are probably dead weight. It reads screenshots, diagrams, and charts accurately on its own. 6. For design work, name what you don't want "Make it unique" gets you generic. "No purple gradients, no centered hero, no emoji icons" gets you something different. It follows specific bans much better than vague direction. ♻️ Repost to save someone a few API bills.

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Anthropic just published its official prompting guide for Opus 5.5. If you're still writing prompts the way you did for Opus 5, you're paying more and getting less. Here's what changed 👇 1. Default to medium effort Medium on 5.5 already outperforms high on Opus 5, at a lower cost. Maxing it out by habit just burns tokens. 2. Drop "think step by step" Reasoning is built in now. The model decides how much thinking a task needs, so asking it to think harder adds nothing. 3. A check-in isn't a finish line On long runs, it sends progress updates along the way. If it stops to report, tell it to keep going. 4. Fence off anything you paste Put emails, docs, and web text in clearly labeled sections or tags. That way it can tell your instructions apart from the material it's working on. 5. Retire your image workarounds Those custom chart readers and OCR steps you built are probably dead weight. It reads screenshots, diagrams, and charts accurately on its own. 6. For design work, name what you don't want "Make it unique" gets you generic. "No purple gradients, no centered hero, no emoji icons" gets you something different. It follows specific bans much better than vague direction. ♻️ Repost to save someone a few API bills.

190,126 Aufrufe

This is getting ridiculous. GPT Image 2.5 is here. Look at the image on the right (that's AI-generated). DALL·E 3 came out in September 2023. GPT Image 1 was huge for editing, but the portraits still had that AI look. Then 1.5 came along. Now look at 2.0 and 2.5. Imagine where we'll be in another 3 years. Here's the exact portrait prompt (unchanged): "A high-resolution, photorealistic, close-up portrait of a woman. The woman, softly and evenly lit, has an oval-shaped face with an even more pronounced oval jawline. She sports an asymmetric bob hairstyle, her hair cut to ear-length. She has an impressively straight nose contour, with the base of her nose being equally straight. The image is a splendid display of macrophotography, with a shallow depth of field adding an extra layer of interest to it. The textures are incredibly detailed, adding much to the overall realism of the image." Try it yourself. You'll see. Get my free AI workflows → Repost ♻️ to help someone in your network.

This is getting ridiculous. GPT Image 2.5 is here. Look at the image on the right (that's AI-generated). DALL·E 3 came out in September 2023. GPT Image 1 was huge for editing, but the portraits still had that AI look. Then 1.5 came along. Now look at 2.0 and 2.5. Imagine where we'll be in another 3 years. Here's the exact portrait prompt (unchanged): "A high-resolution, photorealistic, close-up portrait of a woman. The woman, softly and evenly lit, has an oval-shaped face with an even more pronounced oval jawline. She sports an asymmetric bob hairstyle, her hair cut to ear-length. She has an impressively straight nose contour, with the base of her nose being equally straight. The image is a splendid display of macrophotography, with a shallow depth of field adding an extra layer of interest to it. The textures are incredibly detailed, adding much to the overall realism of the image." Try it yourself. You'll see. Get my free AI workflows → Repost ♻️ to help someone in your network.

55,049 Aufrufe

This Mac launch film is 100% code. Opus 5.5 made the notch, the widgets and the wallpapers from one brief. The bit that made the difference was the free apple-design skill. I had it tear apart my first version, list everything that looked cheap, and rebuild it. Full brief is here if you want to try it:

This Mac launch film is 100% code. Opus 5.5 made the notch, the widgets and the wallpapers from one brief. The bit that made the difference was the free apple-design skill. I had it tear apart my first version, list everything that looked cheap, and rebuild it. Full brief is here if you want to try it:

19,944 Aufrufe

I rewrote my system prompt for GPT-6 Astra this week and cut it in half. It works better now. Here's why, straight from OpenAI's new Astra guide: Astra isn't a faster GPT-5 It's a different worker GPT-5 needed instructions. Astra needs boundaries. So most of what I had written was noise. → "Run tests after every change." It already does that. → "Check with me before continuing." It already does that too, sometimes too much. The stuff that actually matters: → Where can it assume, and where does it need to ask? Spell that out. → What does done look like? If you don't say, it won't know when to stop. → Which rule wins when two clash? Old AGENTS.md files are full of contradictions Astra now takes literally. → Keep your skills short. One sentence each. Long descriptions blur together and it ends up ignoring all of them. Old way → Micromanage every step → Astra stalls New way → Set the boundaries → Astra runs Stop writing prompts like a manager hovering over someone's desk. Write them like a brief you'd hand to a senior engineer and then leave the room. The full guide is on OpenAI's developer docs. Worth 10 minutes before your next build.

I rewrote my system prompt for GPT-6 Astra this week and cut it in half. It works better now. Here's why, straight from OpenAI's new Astra guide: Astra isn't a faster GPT-5 It's a different worker GPT-5 needed instructions. Astra needs boundaries. So most of what I had written was noise. → "Run tests after every change." It already does that. → "Check with me before continuing." It already does that too, sometimes too much. The stuff that actually matters: → Where can it assume, and where does it need to ask? Spell that out. → What does done look like? If you don't say, it won't know when to stop. → Which rule wins when two clash? Old AGENTS.md files are full of contradictions Astra now takes literally. → Keep your skills short. One sentence each. Long descriptions blur together and it ends up ignoring all of them. Old way → Micromanage every step → Astra stalls New way → Set the boundaries → Astra runs Stop writing prompts like a manager hovering over someone's desk. Write them like a brief you'd hand to a senior engineer and then leave the room. The full guide is on OpenAI's developer docs. Worth 10 minutes before your next build.

21,478 Aufrufe

Holy moly. 🤯 Jack Dorsey just gave away, for free, a full toolkit for running a company where AI agents work right next to your human team. His company Block put it on GitHub. It's already past 29,000 stars. Here's how you set it up takes about 5 minutes: 1. Copy (clone) the code from GitHub. 2. Run your own server. This is where your chats, search, code, and automatic tasks all live. 3. Add your AI agent into a chat channel, just like adding a new team member. Tell it what it's allowed to do, and let it work with your team live. No fees. No middleman. Just you, your team, and your AI agents all in one place you control. This might be what running a business looks like from now on Worth saving.

Holy moly. 🤯 Jack Dorsey just gave away, for free, a full toolkit for running a company where AI agents work right next to your human team. His company Block put it on GitHub. It's already past 29,000 stars. Here's how you set it up takes about 5 minutes: 1. Copy (clone) the code from GitHub. 2. Run your own server. This is where your chats, search, code, and automatic tasks all live. 3. Add your AI agent into a chat channel, just like adding a new team member. Tell it what it's allowed to do, and let it work with your team live. No fees. No middleman. Just you, your team, and your AI agents all in one place you control. This might be what running a business looks like from now on Worth saving.

14,039 Aufrufe

I had to write the same Claude Code prompt 40 times in one month. Good news! Anthropic already made them. The official Claude Code prompts are sorted by task and role in the documentation and are ready to be copied and pasted. These prompts were drawn from what our teams use on a daily basis while working with Claude Code. Examples of the types of tasks these prompts cover include: * Planning * Debugging * Code review * Security * Automation Even better, each prompt describes why it works and what you're trying to achieve. This helps you learn what makes a good prompt, and eventually craft your own versions. The prompts are completely free, and we have the link below ⬇️

I had to write the same Claude Code prompt 40 times in one month. Good news! Anthropic already made them. The official Claude Code prompts are sorted by task and role in the documentation and are ready to be copied and pasted. These prompts were drawn from what our teams use on a daily basis while working with Claude Code. Examples of the types of tasks these prompts cover include: * Planning * Debugging * Code review * Security * Automation Even better, each prompt describes why it works and what you're trying to achieve. This helps you learn what makes a good prompt, and eventually craft your own versions. The prompts are completely free, and we have the link below ⬇️

17,461 Aufrufe

PewDiePie just hit 20K GitHub stars in under 24 hours. The project? Odysseus. A self-hosted AI workspace that runs 100% on your machine. • Agents with tools • MCP built in • Persistent memory • File handling • Windows, macOS, Linux Your data never leaves your device. It supports Ollama, llama.cpp, and vLLM locally with OpenAI and OpenRouter support if you want cloud models too. The crazy part? A YouTuber with 110M+ subscribers just out-shipped most AI startups. And he built half of it using AI.

PewDiePie just hit 20K GitHub stars in under 24 hours. The project? Odysseus. A self-hosted AI workspace that runs 100% on your machine. • Agents with tools • MCP built in • Persistent memory • File handling • Windows, macOS, Linux Your data never leaves your device. It supports Ollama, llama.cpp, and vLLM locally with OpenAI and OpenRouter support if you want cloud models too. The crazy part? A YouTuber with 110M+ subscribers just out-shipped most AI startups. And he built half of it using AI.

16,546 Aufrufe

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