Hey folks,

Fable went from “new best model” to “not available” in about 3 days.

Anthropic launched Claude Fable 5⁹⁰ on June 9. Fable was the Mythos-class model for general use but with guardrails. Mythos is Anthropic’s new model only available to select companies because they say it’s a cybersecurity risk.

Then on June 12, Anthropic posted that the US government got spooked by a jailbreak found by Fable (which Anthropic claims that other models like GPT-5.5 can also find). The US govt. suspended access to Fable 5¹⁰⁴ and Mythos 5 for all foreign nationals, inside or outside the US, including foreign Anthropic employees.

So Anthropic’s answer was basically: we can’t do that cleanly, so we’re turning it off for everyone.

Worth reading:

• The government’s side,⁶⁵⁵ via David Sacks.

• Armin’s “Americans only” post³⁷⁸ - if a model is apparently too dangerous, why is the boundary nationality?

• Anthropic is losing the mandate of heaven⁵⁷²

But I really like this part from shadcn’s post -

treat intelligence as borrowed. Use the best model while you have it to make durable plans, specs and implementation notes, then execute later with something cheaper or something you control. - shadcn¹⁷⁹

Worth reading Simon’s review describing Fable as relentlessly proactive⁴⁶⁰.

Anyway, bye bye Fable, I guess.

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Headlines

• Software Factory²⁰⁹ - Factory 2.0²⁵⁵ launched and there’s been a lot of chatter recently about building ‘software factories’ - ie build the machine to build the machine, or more simply, create the systems, infrastructure and workflows to produce software with agents. Factory’s co-founder Matan was on the 20VC¹⁴⁰ which is worth a watch.

• Ramp SWE-Bench¹²²: coding benchmark created from real engineering problems inside Ramp. Fable 5 > GPT-5.5 ~ Opus 4.7 > Opus 4.8, but each increment in performance comes with a 1.5x the cost.

• Vercel has a new tool, drop.new⁴¹⁰ - It lets you just upload a folder, a zip or a file, and it deploys that as a website or an app. Clearly a way to sidestep GitHub.

• OpenAI now lets you save your Codex rate limits reset²¹³. You can then use it anytime in the next 30 days.

• The Information just reported that DeepSeek has raised $7.4B¹³³, valuing it at more than $50B. It’s their first funding round, and the CEO himself is the biggest check (~40% of the total funding).

• AI chips keep getting faster, but the infrastructure developers rely on hasn’t kept up. In this piece, Runpod (aka the AI Developer Cloud) explores why the real bottleneck may be the stack around the hardware & what a developer-first approach to AI infrastructure looks like: https://fandf.co/4vQDUT4¹¹⁴*

My feed

• Extend CLI²⁷⁷ - Give your agent the ability to parse and extract an entire corpus of documents.

• Efecto¹⁹⁰ - design tool with code under the hood so that agents can use the same canvas as you.

• Figma’s Chrome extension¹⁸⁷ now lets you copy/paste websites into editable Figma layers.

• A guide to mastering Codex on Mobile²¹⁷ for your engineering work.

• It’s a mistake to call oneself a “non-technical founder¹⁹⁵”

• Making a human → 10,000 agents “org”³⁰² work with recursive agent systems.

• Fusion API by OpenRouter¹³⁹- Get multiple models to work on your tasks with a judge model to decide the final answers.

• How I work with coding agents³²⁶ like a caveman.

• React security doctor⁹⁶ - Fix security exploits in your React app.

• Sonic-3.5 and Ink-2⁷⁷ - New text to speech and speech to text models from Cartesia.

• A frontier without an ecosystem is not stable¹³⁶. - Satya Nadella

• Castform¹¹⁵ - bring your data and train open-source models on them without worrying about how to make GPUs work.

• How Fable was probably built³⁶⁰.

Afters

"I'm not an engineer but somehow I'm able to ship things of value, which is crazy and weird and still blowing my mind." Here's my new episode with @mvanhorn, a non-technical founder who has contributed to 100+ open source projects and reached 44K+ GitHub stars despite not

@petergyang²¹⁸

You have asked me how I feel about AI regulation. All right, here is how I feel about AI regulation: If, when you say AI regulation, you mean the devil’s firewall, the precautionary scourge, the bloody red-tape monster that defiles the innocence of midnight coders in their

@pmarca¹⁹⁸

We’re excited to share that we just signed an agreement for @salesforce to acquire @fin_ai for ~$3.6B. The transaction is expected to close in the fourth quarter of Salesforce’s fiscal year 2027. Fin started as Intercom 15 years ago. We changed our name to cap our transformation

@eoghan¹⁵⁰

Got a PayPal verification text and thought I been hacked, but it was just codex signing up for a web service it needed.

@steipete⁹⁴

Loops so hot right now Here are the loops I’m experimenting with: Planners - morning brief, orient and context switch back into the flow. This pulls from outside data sources and also checks past chat logs to figure out our current progress. - daily planning - what did you get

@NickADobos²⁰⁷

• Find me on X³⁸, Linkedin⁴⁴, or YouTube³⁶

• Read about me⁴⁸ and Ben’s Bites

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Email us at shanice@bensbites.com³² or k@bensbites.com³⁷