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Boris Cherny, head of Claude Code at Anthropic, on optimizing token cost and model use. “I use Fable for everything" There is probably a 50% opportunity to reduce the investment (on token cost). However, there may be a 1,000%, 10,000%, or even 100,000% opportunity to increase the return. Therefore,...

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Rohan Paul

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57,586 просмотров • 1 месяц назад •via X (Twitter)

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A conversation with Boris Cherny and Cat Wu on the path from Claude Code to Claude Tag, and how it spread from engineering to the rest of Anthropic. Claude Fable 5 is now available in Claude Tag.
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A conversation with Boris Cherny and Cat Wu on the path from Claude Code to Claude Tag, and how it spread from engineering to the rest of Anthropic. Claude Fable 5 is now available in Claude Tag.

Claude

552,407 просмотров • 1 месяц назад

"How do people learn to use Claude Code like Boris?" Claude Code creator Boris Cherny (Boris Cherny ) was asked by Diana Hu ( Diana ) at Startup School 2026. Boris Cherny: "Maybe don’t listen to the LinkedIn influencers. The thing about the model is that everyone is looking for one weird trick to make it work, but that simply doesn’t exist. There is nothing like that. You have to approach the model empirically. Give it a task that is too hard. Give it the tools to verify its work, just as you would use those tools yourself if you were doing the task. See where it struggles, and then fix the problem with better prompting, a skill, or if the model is missing context, an MCP connection that allows it to retrieve the context it needs. That is basically it. It sounds very simple. I think people tend to overthink and overengineer it because, in many ways, that is how we had to build systems in the past." ---- From "Y Combinator" YouTube channel, (full video link in comment)
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"How do people learn to use Claude Code like Boris?" Claude Code creator Boris Cherny (Boris Cherny ) was asked by Diana Hu ( Diana ) at Startup School 2026. Boris Cherny: "Maybe don’t listen to the LinkedIn influencers. The thing about the model is that everyone is looking for one weird trick to make it work, but that simply doesn’t exist. There is nothing like that. You have to approach the model empirically. Give it a task that is too hard. Give it the tools to verify its work, just as you would use those tools yourself if you were doing the task. See where it struggles, and then fix the problem with better prompting, a skill, or if the model is missing context, an MCP connection that allows it to retrieve the context it needs. That is basically it. It sounds very simple. I think people tend to overthink and overengineer it because, in many ways, that is how we had to build systems in the past." ---- From "Y Combinator" YouTube channel, (full video link in comment)

Rohan Paul

55,255 просмотров • 1 месяц назад

Boris Cherny (Boris Cherny) on the Lightcone Podcast about how he approached building Claude Code: "At Anthropic, we don't build for the model of today, we build for the model of six months from now. And that's still my advice to founders that are building on LLMs."
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Boris Cherny (Boris Cherny) on the Lightcone Podcast about how he approached building Claude Code: "At Anthropic, we don't build for the model of today, we build for the model of six months from now. And that's still my advice to founders that are building on LLMs."

Y Combinator

81,264 просмотров • 6 месяцев назад

Claude Code is now included in the Claude Pro plan which means Pro plan subscribers can use their rate limits for Claude apps and Claude Code! To celebrate, here's a conversation with Claude Code's founding engineer, Boris Cherny, on: - how we use Claude Code at Anthropic - underrated tips for using it effectively - the future of coding tools - and more!
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Claude Code is now included in the Claude Pro plan which means Pro plan subscribers can use their rate limits for Claude apps and Claude Code! To celebrate, here's a conversation with Claude Code's founding engineer, Boris Cherny, on: - how we use Claude Code at Anthropic - underrated tips for using it effectively - the future of coding tools - and more!

Alex Albert

123,756 просмотров • 1 год назад

This week's Hermes Agent Masterclass is all about cron jobs and automation! There are a lot of great nuggets in this one, especially on how to set up cheap (or free) automation pipelines. In this clip I use wakeAgent, a way to monitor at no cost, but only use the LLM when needed! Check out the full video on YouTube for more tips!
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This week's Hermes Agent Masterclass is all about cron jobs and automation! There are a lot of great nuggets in this one, especially on how to set up cheap (or free) automation pipelines. In this clip I use wakeAgent, a way to monitor at no cost, but only use the LLM when needed! Check out the full video on YouTube for more tips!

tonbi

115,619 просмотров • 2 месяцев назад

Jayden on late-game fumbled handoff to Bill: "I just lost the ball, completely my fault, didn't give Bill a chance" "I get paid to go out there and focus play in and play out and I had a lack of focus right there and it cost us the game" JP Finlay #RaiseHail #Commanders
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Jayden on late-game fumbled handoff to Bill: "I just lost the ball, completely my fault, didn't give Bill a chance" "I get paid to go out there and focus play in and play out and I had a lack of focus right there and it cost us the game" JP Finlay #RaiseHail #Commanders

NBC4 Sports

574,200 просмотров • 10 месяцев назад

Anthropic just dropped a 45-minute workshop on how to build agents with Fable 5 for 20% of it cost. "give Fable very difficult tasks - that's when you actually see the value" • 10% → 1:40 - full capabilities of Fable 5 • 30% → 11:13 - how to build evals with Fable • 55% → 13:29 - when to use Fable & Sonnet • 80% → 17:23 -how to use Fable 50% cheaper • 100% → 18:03 - Fable 5 Agents orchestration patterns This is worth more then 100 youtube with on how to use Fable 5 Watch today - then read the full playbook below ↓
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Anthropic just dropped a 45-minute workshop on how to build agents with Fable 5 for 20% of it cost. "give Fable very difficult tasks - that's when you actually see the value" • 10% → 1:40 - full capabilities of Fable 5 • 30% → 11:13 - how to build evals with Fable • 55% → 13:29 - when to use Fable & Sonnet • 80% → 17:23 -how to use Fable 50% cheaper • 100% → 18:03 - Fable 5 Agents orchestration patterns This is worth more then 100 youtube with on how to use Fable 5 Watch today - then read the full playbook below ↓

Movez

16,093 просмотров • 20 дней назад

Claude Code cracked something open for us Every 🧱. Now I ship to codebases I barely know, every feature we ship makes the next one easier, and non-technical members of the team use the terminal. I’m genuinely grateful. So I brought its creators, Cat Wu (cat) and Boris Cherny (Boris Cherny) from Anthropic, on AI & I to say thank you—and to talk about everything they’ve learned from building Claude Code. We get into: • The workflows Anthropic’s smartest engineers use to push Claude Code to its limits. Why they pit subagents against each other to get cleaner results, how they turn past code into leverage, and the slash commands and MCPs they rely on most. • The product lessons behind one of the most loved AI agents in the world. How the team balances simplicity and power—building a tool that anyone can use, but that experts can bend to their will—and their philosophy of “unshipping,” or cutting back whenever there’s a simpler, more intuitive path to user intent. • A peek into the future of coding with AI. The new form factors they’re experimenting with to make Claude Code more autonomous, more reliable, and more accessible to non-technical users This is a must-watch for anyone—both technical and non-technical—who wants to learn how to use Claude Code like the people who built it. Watch below! Timestamps: Introduction: 00:01:26 Claude Code’s origin story: 00:02:25 How Anthropic dogfoods Claude Code: 00:07:03 Boris and Cat’s favorite slash commands: 00:14:06 How Boris uses Claude Code to plan feature development: 00:15:49 Everything Anthropic has learned about using sub-agents well: 00:21:53 Use Claude Code to turn past code into leverage: 00:26:16 The product decisions for building an agent that’s simple and powerful: 00:33:14 Making Claude Code accessible to the non-technical user: 00:36:38 The next form factor for coding with AI: 00:45:12
1:10:11

Claude Code cracked something open for us Every 🧱. Now I ship to codebases I barely know, every feature we ship makes the next one easier, and non-technical members of the team use the terminal. I’m genuinely grateful. So I brought its creators, Cat Wu (cat) and Boris Cherny (Boris Cherny) from Anthropic, on AI & I to say thank you—and to talk about everything they’ve learned from building Claude Code. We get into: • The workflows Anthropic’s smartest engineers use to push Claude Code to its limits. Why they pit subagents against each other to get cleaner results, how they turn past code into leverage, and the slash commands and MCPs they rely on most. • The product lessons behind one of the most loved AI agents in the world. How the team balances simplicity and power—building a tool that anyone can use, but that experts can bend to their will—and their philosophy of “unshipping,” or cutting back whenever there’s a simpler, more intuitive path to user intent. • A peek into the future of coding with AI. The new form factors they’re experimenting with to make Claude Code more autonomous, more reliable, and more accessible to non-technical users This is a must-watch for anyone—both technical and non-technical—who wants to learn how to use Claude Code like the people who built it. Watch below! Timestamps: Introduction: 00:01:26 Claude Code’s origin story: 00:02:25 How Anthropic dogfoods Claude Code: 00:07:03 Boris and Cat’s favorite slash commands: 00:14:06 How Boris uses Claude Code to plan feature development: 00:15:49 Everything Anthropic has learned about using sub-agents well: 00:21:53 Use Claude Code to turn past code into leverage: 00:26:16 The product decisions for building an agent that’s simple and powerful: 00:33:14 Making Claude Code accessible to the non-technical user: 00:36:38 The next form factor for coding with AI: 00:45:12

Dan Shipper 📧

57,619 просмотров • 10 месяцев назад

Head of Anthropic Labs: "Fable is one of those models you'll just remember - like Sonnet 3.5, Opus 4, Opus 4.5. Fable is way smarter than me. It finishes a task, lists its trade-offs, and I have to ask it to explain them to me." in 20-minute talk, the Anthropic head reveals the full capabilities of the Fable 5 model in practice. Watch it now, then read how to use this frontier model in the article below
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Head of Anthropic Labs: "Fable is one of those models you'll just remember - like Sonnet 3.5, Opus 4, Opus 4.5. Fable is way smarter than me. It finishes a task, lists its trade-offs, and I have to ask it to explain them to me." in 20-minute talk, the Anthropic head reveals the full capabilities of the Fable 5 model in practice. Watch it now, then read how to use this frontier model in the article below

Movez

33,774 просмотров • 1 месяц назад

Chancellor Rachel Reeves is delivering a pre-Budget speech from Downing Street. Live on #BBCBreakfast she is outlining how it will focus on "fairness and opportunity" to bring down NHS waiting lists, the national debt and the cost of living
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Chancellor Rachel Reeves is delivering a pre-Budget speech from Downing Street. Live on #BBCBreakfast she is outlining how it will focus on "fairness and opportunity" to bring down NHS waiting lists, the national debt and the cost of living

BBC Breakfast

17,451 просмотров • 9 месяцев назад

Boris Cherny, the creator of Claude Code, just explained why the features most users never find are the ones that matter most in this podcast he breaks down not just how to use Claude, but what it all means for the next few years: > the right way to give Claude context before it starts working > why giving it too much information is just as bad as too little > how Claude Code is already changing how engineers build things > how the people who built Claude actually use it day to day based on this podcast and months of using Claude myself, I put together a guide on everything Claude can do that most people have no idea exists you can find it below
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Boris Cherny, the creator of Claude Code, just explained why the features most users never find are the ones that matter most in this podcast he breaks down not just how to use Claude, but what it all means for the next few years: > the right way to give Claude context before it starts working > why giving it too much information is just as bad as too little > how Claude Code is already changing how engineers build things > how the people who built Claude actually use it day to day based on this podcast and months of using Claude myself, I put together a guide on everything Claude can do that most people have no idea exists you can find it below

Anatoli Kopadze

22,524 просмотров • 3 месяцев назад

“Remember when first campaigning to be elected, the Albanese government said it would reduce power bills by $275. Surely the slogan ‘Fire the Liar’ has relevance to millions of Australians? Was it a lie to campaign in 2022 on the slogan ‘A Better Future’? Is this how Australians feel today? The cost of energy feeds into everything we use, eat and manufacture. Food is dearer, housing is dearer and rent is dearer. There is your cost of living crisis. Albanese lied to become elected, and Australians are paying for it.” The cost of energy feeds into everything we use, eat and manufacture. It is central to why the cost of living is such a struggle for so many Australians. Remember when the Albanese Government said it would reduce energy bills by $275? Remember when, in 2022, it campaigned on the slogan "A Better Future”? All lies. Through net zero, the Albanese government has fuelled cost of living struggles for everyday Aussies. One Nation will scrap net zero, make full use of our natural resources, and engage with nuclear energy. All steps that would make a decisive contribution to bringing down your energy bills.
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“Remember when first campaigning to be elected, the Albanese government said it would reduce power bills by $275. Surely the slogan ‘Fire the Liar’ has relevance to millions of Australians? Was it a lie to campaign in 2022 on the slogan ‘A Better Future’? Is this how Australians feel today? The cost of energy feeds into everything we use, eat and manufacture. Food is dearer, housing is dearer and rent is dearer. There is your cost of living crisis. Albanese lied to become elected, and Australians are paying for it.” The cost of energy feeds into everything we use, eat and manufacture. It is central to why the cost of living is such a struggle for so many Australians. Remember when the Albanese Government said it would reduce energy bills by $275? Remember when, in 2022, it campaigned on the slogan "A Better Future”? All lies. Through net zero, the Albanese government has fuelled cost of living struggles for everyday Aussies. One Nation will scrap net zero, make full use of our natural resources, and engage with nuclear energy. All steps that would make a decisive contribution to bringing down your energy bills.

One Nation Australia

10,953 просмотров • 2 месяцев назад

Boris Cherny, Head of Claude Code at Anthropic: "I do not prompt Claude anymore. I have loops running that prompt Claude. My job is to write loops." The person who built the most used AI coding tool stopped prompting entirely. Most people using it every day are still typing one request at a time. This Github repo changes that. ↳ Seven production loop patterns with real token cost estimates ↳ CLI that scaffolds your entire loop in five minutes ↳ Starters for Grok, Claude Code, Codex, and Opencode The repo gives you the framework. My article covers the mental shift that makes it actually work.
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Boris Cherny, Head of Claude Code at Anthropic: "I do not prompt Claude anymore. I have loops running that prompt Claude. My job is to write loops." The person who built the most used AI coding tool stopped prompting entirely. Most people using it every day are still typing one request at a time. This Github repo changes that. ↳ Seven production loop patterns with real token cost estimates ↳ CLI that scaffolds your entire loop in five minutes ↳ Starters for Grok, Claude Code, Codex, and Opencode The repo gives you the framework. My article covers the mental shift that makes it actually work.

Kanika

20,576 просмотров • 1 месяц назад

When the conversation of reparations comes up, people always focus on what it is going to cost. We need to focus on what we are going to gain. This nation can absolutely afford to do reparations. It can not afford NOT to do reparations. I make some of these points during a live TV interview on a news station in Charleston. It was probably not the most politically astute thing to do to speak about reparations during what just a four minute interview where I could not discuss all the nuances of the matter. It will probably not win me much support. However, it was the right thing to do.
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When the conversation of reparations comes up, people always focus on what it is going to cost. We need to focus on what we are going to gain. This nation can absolutely afford to do reparations. It can not afford NOT to do reparations. I make some of these points during a live TV interview on a news station in Charleston. It was probably not the most politically astute thing to do to speak about reparations during what just a four minute interview where I could not discuss all the nuances of the matter. It will probably not win me much support. However, it was the right thing to do.

MarcelForCongress

76,644 просмотров • 1 год назад

Building with AI requires organizations to embrace a new mindset alongside new tools. In the next episode of Advanced Insights, Head of Claude Code at Anthropic Boris Cherny (Boris Cherny) joins Mark Papermaster for a conversation on how AI is accelerating workflows and the importance of fostering experimentation across teams. Full episode coming soon.
0:23

Building with AI requires organizations to embrace a new mindset alongside new tools. In the next episode of Advanced Insights, Head of Claude Code at Anthropic Boris Cherny (Boris Cherny) joins Mark Papermaster for a conversation on how AI is accelerating workflows and the importance of fostering experimentation across teams. Full episode coming soon.

AMD

70,541 просмотров • 1 месяц назад

Elon Musk: To go and help build a new civilization on a new planet is the best possible adventure. “It's important to emphasize even with the rocket that we'll be launching just at the end of this year, it will be capable of making life multiplanetary and thereafter it's just about continuing to hone the efficiency and capability of the rocket and reduce the cost per ton and reduce the cost per person to Mars. And like I said, ultimately make it so that anyone who wants to move to Mars and help build a new civilization can do so. Anyone out there. How cool would that be? And even if you don't want to do it, maybe you have a son or daughter who wants to do that or a friend who wants to do it. I think it would be the best adventure that one could possibly do is to go and help build a new civilization on a new planet.” SpaceX Update: The Road to Making Life Multiplanetary, May 29, 2025
0:48

Elon Musk: To go and help build a new civilization on a new planet is the best possible adventure. “It's important to emphasize even with the rocket that we'll be launching just at the end of this year, it will be capable of making life multiplanetary and thereafter it's just about continuing to hone the efficiency and capability of the rocket and reduce the cost per ton and reduce the cost per person to Mars. And like I said, ultimately make it so that anyone who wants to move to Mars and help build a new civilization can do so. Anyone out there. How cool would that be? And even if you don't want to do it, maybe you have a son or daughter who wants to do that or a friend who wants to do it. I think it would be the best adventure that one could possibly do is to go and help build a new civilization on a new planet.” SpaceX Update: The Road to Making Life Multiplanetary, May 29, 2025

ELON CLIPS

34,538 просмотров • 1 год назад

Boris Cherny, head of Claude Code at Anthropic: "I don't prompt Claude anymore. I have loops that are running; they are the ones prompting Claude and figuring out what to do. My job is to write loops." He's right. Karpathy and Steinberger arrived at the same conclusion from different angles. The skill has a new name. Loop engineering. Cherny's token bill is zero. He works at Anthropic. Steinberger burned $1.3 million in OpenAI credits in 30 days. He works at OpenAI. Loops are the right architecture. But the people evangelizing them aren't the ones paying. I wrote a breakdown of five plays that land most of what a loop gives you at a fraction of the cost, plus the one case where a loop is worth paying for.
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Boris Cherny, head of Claude Code at Anthropic: "I don't prompt Claude anymore. I have loops that are running; they are the ones prompting Claude and figuring out what to do. My job is to write loops." He's right. Karpathy and Steinberger arrived at the same conclusion from different angles. The skill has a new name. Loop engineering. Cherny's token bill is zero. He works at Anthropic. Steinberger burned $1.3 million in OpenAI credits in 30 days. He works at OpenAI. Loops are the right architecture. But the people evangelizing them aren't the ones paying. I wrote a breakdown of five plays that land most of what a loop gives you at a fraction of the cost, plus the one case where a loop is worth paying for.

Alex Prompter

15,166 просмотров • 2 месяцев назад

🚨Mamdani responding to renewed criticism re: refusal to condemn ‘globalize the intifada’ slogan: “I continue to discourage the use of that phrase, a phrase that I do not use myself, and I continue to focus on the work at hand of keeping Jewish New Yorkers safe in the city.”
2:30

🚨Mamdani responding to renewed criticism re: refusal to condemn ‘globalize the intifada’ slogan: “I continue to discourage the use of that phrase, a phrase that I do not use myself, and I continue to focus on the work at hand of keeping Jewish New Yorkers safe in the city.”

Jacob N. Kornbluh

566,444 просмотров • 8 месяцев назад

I practice draw the same form, i define the goal, the limits and i focus on get that. -Use the whole arm to draw not only the wrist -Focus on force the arm to follow the dots -Set the goal in mind on do it faster you can and do it in one stroke *Repeat the stroke three times!
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I practice draw the same form, i define the goal, the limits and i focus on get that. -Use the whole arm to draw not only the wrist -Focus on force the arm to follow the dots -Set the goal in mind on do it faster you can and do it in one stroke *Repeat the stroke three times!

Tlauz - Animation course!!

164,890 просмотров • 1 год назад