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Anthropic Engineer: "Fable 5 is back, and most people will use it wrong" "You can set up Sonnet 5 and Fable 5 properly in one afternoon and stop overpaying every single day" In 29 minutes, he breaks down each Claude model, why setup matters, and where Fable 5 fits...

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rari

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20,772 次观看 • 1 个月前 •via X (Twitter)

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Anthropic engineer: "Most people will use Sonnet 5 and Fable 5 wrong. You can set them up right in one afternoon and stop overpaying every single day." In 29 minutes, he breaks down every Claude model, and why running them all the same way is a mistake. Watch the session, then save the config below 👇
29:30

Anthropic engineer: "Most people will use Sonnet 5 and Fable 5 wrong. You can set them up right in one afternoon and stop overpaying every single day." In 29 minutes, he breaks down every Claude model, and why running them all the same way is a mistake. Watch the session, then save the config below 👇

darkzodchi

578,362 次观看 • 1 个月前

Anthropic engineer: "Most people will use Sonnet 5 and Fable 5 wrong. You can set them up right in one afternoon and stop overpaying every single day." In 31 minutes he shows how to test every model against your real use case and stop overpaying for nothing. Watch the session, then read the guide below on the Claude features 99% of users never find.
31:12

Anthropic engineer: "Most people will use Sonnet 5 and Fable 5 wrong. You can set them up right in one afternoon and stop overpaying every single day." In 31 minutes he shows how to test every model against your real use case and stop overpaying for nothing. Watch the session, then read the guide below on the Claude features 99% of users never find.

Anatoli Kopadze

154,529 次观看 • 1 个月前

Most people are using Fable 5 wrong & overpaying every single day. Anthropic's Head of Labs just showed how to use Fable 5 the right way. He shared the exact workflow they use internally: -Run parallel Claude sessions. -Fable only for planning. -Sonnet for quick questions. -Effort levels for simple work. -Verification loops that catch mistakes before they cost tokens. After this you will run Fable 5 like an Anthropic engineer. Bookmark this or keep burning your tokens.
52:01

Most people are using Fable 5 wrong & overpaying every single day. Anthropic's Head of Labs just showed how to use Fable 5 the right way. He shared the exact workflow they use internally: -Run parallel Claude sessions. -Fable only for planning. -Sonnet for quick questions. -Effort levels for simple work. -Verification loops that catch mistakes before they cost tokens. After this you will run Fable 5 like an Anthropic engineer. Bookmark this or keep burning your tokens.

Roan

19,661 次观看 • 1 个月前

Anthropic's managed agents team just showed the Fable 5 workflow most people haven't seen Their line was simple: Fable 5 is our best model for running self-improving agent systems" Fable 5 + loops + dynamic workflows + dreaming = self-improving agents 13 minutes Live from Anthropic's Japan stage Built from scratch Worth more than a $500 agent building course Bookmark and watch it before this becomes the default setup
13:25

Anthropic's managed agents team just showed the Fable 5 workflow most people haven't seen Their line was simple: Fable 5 is our best model for running self-improving agent systems" Fable 5 + loops + dynamic workflows + dreaming = self-improving agents 13 minutes Live from Anthropic's Japan stage Built from scratch Worth more than a $500 agent building course Bookmark and watch it before this becomes the default setup

rari

32,304 次观看 • 2 个月前

This is the best way to use Claude Fable in Claude Code without immediately hitting your limits. 1. Model set to Fable 5 2. Reasoning on Max 3. Instruct Claude to run a dynamic workflow where: 3a. Fable is the orchestrator 3b. Opus does the reasoning heavy phases Fable is so overpowered that you don't need its intelligence for every step. Let it orchestrate Opus or even Sonnet.
0:24

This is the best way to use Claude Fable in Claude Code without immediately hitting your limits. 1. Model set to Fable 5 2. Reasoning on Max 3. Instruct Claude to run a dynamic workflow where: 3a. Fable is the orchestrator 3b. Opus does the reasoning heavy phases Fable is so overpowered that you don't need its intelligence for every step. Let it orchestrate Opus or even Sonnet.

Dan McAteer

908,606 次观看 • 2 个月前

ANTHROPIC'S HEAD OF ENGINEERING SAYS THEY JUST SHIPPED THE MOST CAPABLE MODELS THEY HAVE EVER BUILT Mythos 5 and Fable 5. Fable 5 can run for days on a single goal and get it right on the first pass, on work that used to need an entire team. Most people use AI to summarize things. The real leverage is the long autonomous task you keep putting off.
6:47

ANTHROPIC'S HEAD OF ENGINEERING SAYS THEY JUST SHIPPED THE MOST CAPABLE MODELS THEY HAVE EVER BUILT Mythos 5 and Fable 5. Fable 5 can run for days on a single goal and get it right on the first pass, on work that used to need an entire team. Most people use AI to summarize things. The real leverage is the long autonomous task you keep putting off.

0xMarioNawfal

57,127 次观看 • 1 个月前

this is f**king gold someone just figured out how to run Claude Fable 5 and GPT 5.6 Sol in the same loop gpt-5.6 came out yesterday. fable 5 leaves in 48 hours. this window has never existed before and never will again. here is how to use it: 1. open claude code. install openai's codex plugin 2. type /model. choose fable 5. 3. drop one ROUTING.md in your repo root (full file in comments). 4.paste the prompt (in comments), write what feature you want. boom. save and bookmark this no matter what. it will be the most productive thing you do this weekend
0:20

this is f**king gold someone just figured out how to run Claude Fable 5 and GPT 5.6 Sol in the same loop gpt-5.6 came out yesterday. fable 5 leaves in 48 hours. this window has never existed before and never will again. here is how to use it: 1. open claude code. install openai's codex plugin 2. type /model. choose fable 5. 3. drop one ROUTING.md in your repo root (full file in comments). 4.paste the prompt (in comments), write what feature you want. boom. save and bookmark this no matter what. it will be the most productive thing you do this weekend

Avid

139,979 次观看 • 1 个月前

Anthropic just dropped 5 workshops on Fable 5 and gave away everything for free: 00:00 - deep look into Fable 5 11:22 - the capability curve most users will never see 30:54 - building agents with Fable 5 44:29 - real teams using Fable 5 57:43 - how to deploy agents with Fable 5 This 1-hour watch will replace 10 paid agentic courses on the internet. Watch them today, then read the article below.
1:24:55

Anthropic just dropped 5 workshops on Fable 5 and gave away everything for free: 00:00 - deep look into Fable 5 11:22 - the capability curve most users will never see 30:54 - building agents with Fable 5 44:29 - real teams using Fable 5 57:43 - how to deploy agents with Fable 5 This 1-hour watch will replace 10 paid agentic courses on the internet. Watch them today, then read the article below.

Khairallah AL-Awady

26,211 次观看 • 1 个月前

They did it. Claude Opus 5 is BETTER than Fable 5 and half the price It's the smartest model ever made Plus you can actually use it without draining your bank account In this video I cover the best use cases for Opus, when I still use Fable, and where GPT 5.6 still wins:
10:52

They did it. Claude Opus 5 is BETTER than Fable 5 and half the price It's the smartest model ever made Plus you can actually use it without draining your bank account In this video I cover the best use cases for Opus, when I still use Fable, and where GPT 5.6 still wins:

Alex Finn

42,266 次观看 • 19 天前

Anthropic finally published the prompting playbook for every Claude model. > Prompting Claude Sonnet 5. > Prompting Claude Opus 4.8. > Prompting Claude Opus 5. > Prompting Claude Fable 5. After reading it, one thing is clear. Almost nobody is getting the most out of Claude. It shows exactly how each model should be prompted instead of relying on guesswork. If Claude is in your workflow, bookmark this.
0:25

Anthropic finally published the prompting playbook for every Claude model. > Prompting Claude Sonnet 5. > Prompting Claude Opus 4.8. > Prompting Claude Opus 5. > Prompting Claude Fable 5. After reading it, one thing is clear. Almost nobody is getting the most out of Claude. It shows exactly how each model should be prompted instead of relying on guesswork. If Claude is in your workflow, bookmark this.

shmidt

119,698 次观看 • 9 天前

An asian guy just found a way to use Fable 5 forever, even though Anthropic is going to make it access-limited after 12th July. He used Opus 4.8 to host the operating manual of fable 5 with just one single prompt. Access to the best model is never guaranteed. It disappeared once already this year. But you can use it forever. Here's how: 1. Extract the operating manual of Fable 5 2. Create an .md file and save it on your device 3. Create a new project "Fable 5 Brain" in Claude 4. Paste the instructions/ .md file straight into it 5. Run a pressure test to verify Save and bookmark this no matter what:
0:30

An asian guy just found a way to use Fable 5 forever, even though Anthropic is going to make it access-limited after 12th July. He used Opus 4.8 to host the operating manual of fable 5 with just one single prompt. Access to the best model is never guaranteed. It disappeared once already this year. But you can use it forever. Here's how: 1. Extract the operating manual of Fable 5 2. Create an .md file and save it on your device 3. Create a new project "Fable 5 Brain" in Claude 4. Paste the instructions/ .md file straight into it 5. Run a pressure test to verify Save and bookmark this no matter what:

Aria Westcott

376,386 次观看 • 1 个月前

KIMI K3 is here, and it blew my mind 🤯 yes, it is expensive and very slow Took over 30 minutes, and blew an ENTIRE $20 kimi sub before it even finished the one prompt for this game. BUT OMG... the output geniuinly has fable 5 level magic built into it, this model falls between gpt 5.6 and fable 5 imo. you can play the game at kimisurfers (dot) com right now, and see what I mean. This model is too expensive to replace fable 5, BUTT it shows that the chinese open source labs are CATCHING anthropic and open ai FASTTT.
1:19

KIMI K3 is here, and it blew my mind 🤯 yes, it is expensive and very slow Took over 30 minutes, and blew an ENTIRE $20 kimi sub before it even finished the one prompt for this game. BUT OMG... the output geniuinly has fable 5 level magic built into it, this model falls between gpt 5.6 and fable 5 imo. you can play the game at kimisurfers (dot) com right now, and see what I mean. This model is too expensive to replace fable 5, BUTT it shows that the chinese open source labs are CATCHING anthropic and open ai FASTTT.

Max Blade

128,750 次观看 • 27 天前

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
25:40

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 次观看 • 1 个月前

I couldn't believe the results of this benchmarking test. I blind-tested 6 frontier models — Sonnet 5, Opus 4.8, Fable 5, GPT 5.5, GLM 5.2, and Kimi 2.5 — on knowledge work, not engineering. Writing. Analysis. Design. Vibe coding. Subagent simulations. The stuff we actually do all day. Same prompts, each model running its own subagent, every output graded blind before the labels were revealed. The results: → GLM 5.2 (the dirt-cheap open-source model from China) took first → Sonnet 5 took second, beating Fable 5 for knowledge work → Opus 4.8 got whooped Then I had Composer 2.5 judge every output independently — and it picked Fable 5 almost across the board. My blind picks and the AI judge completely disagreed. Full breakdown, method, and prompts in the video below. Which model are you running as your daily driver right now?
18:49

I couldn't believe the results of this benchmarking test. I blind-tested 6 frontier models — Sonnet 5, Opus 4.8, Fable 5, GPT 5.5, GLM 5.2, and Kimi 2.5 — on knowledge work, not engineering. Writing. Analysis. Design. Vibe coding. Subagent simulations. The stuff we actually do all day. Same prompts, each model running its own subagent, every output graded blind before the labels were revealed. The results: → GLM 5.2 (the dirt-cheap open-source model from China) took first → Sonnet 5 took second, beating Fable 5 for knowledge work → Opus 4.8 got whooped Then I had Composer 2.5 judge every output independently — and it picked Fable 5 almost across the board. My blind picks and the AI judge completely disagreed. Full breakdown, method, and prompts in the video below. Which model are you running as your daily driver right now?

JJ Englert

10,737 次观看 • 1 个月前

Fable 5 is BACK on AI/ML API We gave Sonnet 5 and Fable 5 the exact same prompt and same real flight dataset of 70 airports and 435 routes pulled from flightradar. Then asked each one to turn it into a cinematic 3D globe as a single HTML file. Outputs: Sonnet 5: 9.8k tokens, $0.10 Fable 5: 15k tokens, $0.77 Sonnet 5 came in 87% cheaper. It drew the routes, but the planet underneath them barely exists: a dark wireframe with the arcs floating in space. Fable 5 built an actual Earth: textured oceans, ice caps, atmospheric glow. Mythos-class models are truly a masterpiece. Docs, guides & setup below:
0:37

Fable 5 is BACK on AI/ML API We gave Sonnet 5 and Fable 5 the exact same prompt and same real flight dataset of 70 airports and 435 routes pulled from flightradar. Then asked each one to turn it into a cinematic 3D globe as a single HTML file. Outputs: Sonnet 5: 9.8k tokens, $0.10 Fable 5: 15k tokens, $0.77 Sonnet 5 came in 87% cheaper. It drew the routes, but the planet underneath them barely exists: a dark wireframe with the arcs floating in space. Fable 5 built an actual Earth: textured oceans, ice caps, atmospheric glow. Mythos-class models are truly a masterpiece. Docs, guides & setup below:

AI/ML API

498,492 次观看 • 1 个月前

Anthropic Managed Agents team: "Fable 5 - is our best model for self-improving agent systems. add /loops, dynamic workflows, dreaming - and you're unstoppable." in 13 minutes, the Anthropic team shows how to build self-improving agent systems with Fable 5 from scratch. Worth more than a $500 agent-building course. Live from the Anthropic stage in Japan. Unpublished
13:23

Anthropic Managed Agents team: "Fable 5 - is our best model for self-improving agent systems. add /loops, dynamic workflows, dreaming - and you're unstoppable." in 13 minutes, the Anthropic team shows how to build self-improving agent systems with Fable 5 from scratch. Worth more than a $500 agent-building course. Live from the Anthropic stage in Japan. Unpublished

Movez

67,091 次观看 • 2 个月前

Kivine, a new model on Arena.ai, is potentially an upcoming Kimi K3 model. I got lucky and caught a comparison between Fable 5 and Kimi K3 in the Universe simulation prompt. > Fable 5 finished faster, and most UX components were more robust and easy to use. > Kimi.ai K3 was much more complex and visually appealing. At some point, if you select a planet and set the speed to x100, it will spin you around in the 1st-person pov. It seems like they are very close 👀
0:29

Kivine, a new model on Arena.ai, is potentially an upcoming Kimi K3 model. I got lucky and caught a comparison between Fable 5 and Kimi K3 in the Universe simulation prompt. > Fable 5 finished faster, and most UX components were more robust and easy to use. > Kimi.ai K3 was much more complex and visually appealing. At some point, if you select a planet and set the speed to x100, it will spin you around in the 1st-person pov. It seems like they are very close 👀

🚨 AI News | TestingCatalog

73,628 次观看 • 28 天前

Day 3 of 5 building with Claude Fable 5 before it goes paid. Today: an audit of everything you have already made. 1. Fable 5 reads back through all your past Claude chats 2. It flags what worked, what you dropped, and where value is going to waste 3. It ranks the top 10 fixes by effort against impact 4. Then it hands you a concrete plan for the top 3 5. Run that plan on a cheaper model and save Fable 5 for the thinking Comment FABLE for the full guide. Make sure you follow me so I can DM it to you. Day 4 tomorrow.
0:52

Day 3 of 5 building with Claude Fable 5 before it goes paid. Today: an audit of everything you have already made. 1. Fable 5 reads back through all your past Claude chats 2. It flags what worked, what you dropped, and where value is going to waste 3. It ranks the top 10 fixes by effort against impact 4. Then it hands you a concrete plan for the top 3 5. Run that plan on a cheaper model and save Fable 5 for the thinking Comment FABLE for the full guide. Make sure you follow me so I can DM it to you. Day 4 tomorrow.

Charlie Hills

13,617 次观看 • 1 个月前

CLAUDE FABLE 5 IS BACK, BUT IS IT THE SAME POWER OR WAS IT QUIETLY TRIMMED Fable 5 is available again. Anthropic's most powerful model is back globally for every paid account When it first landed three weeks ago, the difference was obvious right away. It didn't just help, it carried the task to the finish: entire web projects, presentations, reports, analysis. People dropped their work on other models and simply waited for Fable And the wait happened because three days after launch the US hit the model with export controls. There was no clean way to cut off foreign nationals, so Anthropic shut access down for everyone Now the restrictions are lifted, and here are the terms it came back on: > until July 7 it's included in a plan and covers up to 50% of the weekly limit > after that only through credits, topped up in settings > output runs at 50 dollars per million tokens Anthropic says it's the same model, just with stronger protection against cybersecurity use. Because the filter is so strict, there will be false positives now and then, and a request will get bumped down to a weaker model Whether it's the same power or quietly trimmed will only show after a couple of weeks of real work
1:59

CLAUDE FABLE 5 IS BACK, BUT IS IT THE SAME POWER OR WAS IT QUIETLY TRIMMED Fable 5 is available again. Anthropic's most powerful model is back globally for every paid account When it first landed three weeks ago, the difference was obvious right away. It didn't just help, it carried the task to the finish: entire web projects, presentations, reports, analysis. People dropped their work on other models and simply waited for Fable And the wait happened because three days after launch the US hit the model with export controls. There was no clean way to cut off foreign nationals, so Anthropic shut access down for everyone Now the restrictions are lifted, and here are the terms it came back on: > until July 7 it's included in a plan and covers up to 50% of the weekly limit > after that only through credits, topped up in settings > output runs at 50 dollars per million tokens Anthropic says it's the same model, just with stronger protection against cybersecurity use. Because the filter is so strict, there will be false positives now and then, and a request will get bumped down to a weaker model Whether it's the same power or quietly trimmed will only show after a couple of weeks of real work

Mikadzyki🌙

20,003 次观看 • 1 个月前

ANTHROPIC LEAKED 6 RULES THAT RUN 8 LOOPS AT ONCE - AND ONE ENGINEER DOES THE WORK OF A TEAM one engineer with this system replaces an entire team - and costs the company 8 times less You → Opus 5 plan → Fable 5 ×8 execute → Fable 5 review → you: 5 min Opus 5 takes your intent and breaks it into subtasks - a bad plan multiplied across every loop gives the same number of disasters - the plan is the only thing you read carefully one repo - isolated worktrees for each loop - nobody stands on anyone's file - parallel PRs ship while you do nothing the agent runs the tests and fixes until green PR - a red build never reaches your eyes one CLAUDE.md for the whole fleet - without it you get different opinions from every loop and one merge hell the average engineer closes 3-4 tasks a day - this system closes a full sprint overnight with zero working hours Fable 5 pre-reviews every PR before it reaches you - you spend 5 minutes - your throughput is now measured in diffs read per hour bookmark and paste into Claude Code - your first fleet can start tonight
1:15

ANTHROPIC LEAKED 6 RULES THAT RUN 8 LOOPS AT ONCE - AND ONE ENGINEER DOES THE WORK OF A TEAM one engineer with this system replaces an entire team - and costs the company 8 times less You → Opus 5 plan → Fable 5 ×8 execute → Fable 5 review → you: 5 min Opus 5 takes your intent and breaks it into subtasks - a bad plan multiplied across every loop gives the same number of disasters - the plan is the only thing you read carefully one repo - isolated worktrees for each loop - nobody stands on anyone's file - parallel PRs ship while you do nothing the agent runs the tests and fixes until green PR - a red build never reaches your eyes one CLAUDE.md for the whole fleet - without it you get different opinions from every loop and one merge hell the average engineer closes 3-4 tasks a day - this system closes a full sprint overnight with zero working hours Fable 5 pre-reviews every PR before it reaches you - you spend 5 minutes - your throughput is now measured in diffs read per hour bookmark and paste into Claude Code - your first fleet can start tonight

Sprytix

37,766 次观看 • 15 天前