Insiders React: Anthropic’s Fable, Mythos explained + SpaceX’s record-breaking IPO

Insiders React: Anthropic’s Fable, Mythos explained + SpaceX’s record-breaking IPO

Author: Yaniv Bernstein and Chris Saad June 16, 2026 Duration: 52:15

The Startup Podcast is back for its 300th episode – and it’s an absolute doozy. 


In today’s Reacts, hosts Chris Saad and Yaniv Bernstein break down how Anthropic became the new industry leader in AI, and why betting on coding as the 'meta domain' of AI turned out to be one of the most consequential product decisions of the decade.


They also dig into Mythos and the newly released Claude Fable: what makes Fable different, whether it has something approaching genuine intelligence, and what the Anthropic 'strategy dividend' (per Ben Thompson of Stratechery) actually means for the industry.


Then: SpaceX’s record-breaking IPO. With a reported valuation of around $1.88 trillion and a prospectus that talks more about AI than rockets, Chris and Yaniv ask the obvious question: is it worth it?


In this episode:

  • How product discipline and a bet on coding put Anthropic in front
  • Strategy dividends: how Anthropic's genuine commitment to safety became both a real constraint and a powerful marketing asset at the same time
  • Claude’s new models, Fable and Mythos: what's actually changed?
  • Why Chris thinks the SpaceX IPO at ~90x revenue is a roll-up of Elon Musk's 'dead bodies'
  • Liquidity risk: with SpaceX, Google and Anthropic all raising simultaneously, is there enough liquidity in the market?


Timestamps

00:00 Coming Up...

00:39 On Today's Show: Chris returns, Anthropic’s Mythos/Fable, SpaceX IPO

02:30 Anthropic surges ahead of OpenAI

04:16 Why coding is a 'meta-advantage' for AI

07:24 OpenAI’s product turmoil

11:04 Are OpenAI competing with Anthropic, or Google?

13:25 Anthropic’s enterprise strategy

17:06 Mythos: ‘Safety marketing’ or ‘safety dividends’?

23:24 Are Anthropic the good guys?

26:32 Fable: “Mythos with a muzzle”

28:29 Does AI only need to beat the average human?

31:23 Yaniv’s experiences with Fable

32:46 Reasoning logs and self-correction

34:27 Is SpaceX over-valued? (Yes.)

39:32 SpaceX’s moats and growth potential

43:02 Why ‘second mover advantage’ sometimes wins

46:05 Will there be a crash? Chris predicts a liquiditycrunch

50:31 Closing Thoughts


Resources mentioned in this episode

  • Dario Amodei's essay, 'Machines of Loving Grace': https://darioamodei.com/machines-of-loving-grace
  • Ben Thompson's Stratechery: https://stratechery.com
  • Project Glasswing (Anthropic's restricted Mythos access program): https://www.anthropic.com/glasswing
  • Eric Ries on The Startup Podcast: https://youtu.be/HQ7cP1lGyiM


The Pact

Honor the Startup Podcast Pact! If you have listened to TSP and gotten value from it, please:

Follow, rate, and review us in your listening app

Secure your official TSP merchandise at https://shop.tsp.show/

Follow us on YouTube for full video episodes: https://www.youtube.com/@startup-podcast

Give us a public shout-out on LinkedIn or anywhere you have a social media following


Key links

This episode of the Startup Podcast is sponsored by .tech domains. Forget weird prefixes and creative misspellings; the availability for .tech domains is simply way better than .com. For a clean name that highlights your tech credentials, get a .tech domain at your favorite registrar.


This episode of the Startup Podcast is sponsored by Vanta. Vanta helps businesses get and stay compliant by automating up to 90% of the work for the most in demand compliance frameworks. With over 200 integrations, you can easily monitor and secure the tools your business relies on. For a limited time offer of US$1,000 off, go to ⁠⁠⁠⁠https://⁠www.vanta.com/tsp⁠⁠⁠⁠⁠


The Startup Podcast website: https://www.tsp.show/episodes/


Learn more about Chris and Yaniv

Work 1:1 with Chris: http://chrissaad.com/advisory/

Follow Chris on Linkedin: https://www.linkedin.com/in/chrissaad/

Follow Yaniv on Linkedin: https://www.linkedin.com/in/ybernstein/


Producer: Justin McArthur https://www.linkedin.com/in/justin-mcarthur

Assistant Producer: Steph Hefferan https://www.linkedin.com/in/steph-heff/

Intro Voice: Jeremiah Owyang https://web-strategist.com/


For founders tired of abstract theory and looking for the concrete mechanics of building a high-growth company, The Startup Podcast offers a direct line to actionable knowledge. Hosts Yaniv Bernstein and Chris Saad bypass the usual interview format to deliver focused masterclasses and tactical advice drawn from their own decades in the trenches. Each episode digs into a specific challenge, whether it's navigating the nuances of raising Venture Capital, refining product strategy, or engineering sustainable growth. This isn't about general inspiration; it's a practical guide to adopting the distinct mindset and operational approaches that fuel Silicon Valley-style disruption. Listeners will find a clear roadmap covering the essential pillars: strategy, marketing, product development, and beyond. By consistently translating complex concepts into executable steps, this podcast serves as a vital resource for entrepreneurs determined to move beyond idea and into execution. Bernstein and Saad's combined experience provides a trusted foundation, making each session feel like a focused workshop aimed at building something that truly changes the game.
Author: Language: English Episodes: 50

The Startup Podcast
Podcast Episodes
ScaleStudio: The new tool putting our principles into practice [not-audio_url] [/not-audio_url]

Duration: 46:03
After nearly 300 episodes of The Startup Podcast, Chris Saad is bringing everything he's learned about building world-class products and product strategy into a single tool: ScaleStudio. In what may be our final episode…
Why you should run your startup like a poker player (Replay) [not-audio_url] [/not-audio_url]

Duration: 43:38
This is a remastered Replay of one of our most popular episodes, "What Startups Can Learn From Poker", which was originally published on 21 December 2022. Enjoy!Original description: All season, Chris and Yaniv have talk…
Avoiding ‘team debt’ by building small and smart (w/ Matt Cook) [not-audio_url] [/not-audio_url]

Duration: 56:20
Is hiring a person still your default answer to a problem? For a growing number of startups, it shouldn't be.In this episode, Yaniv Bernstein is joined by returning guest Matt Cook, co-founder of Scouut, one of Australia…
How good timing makes great products w/ Paul Orlando [not-audio_url] [/not-audio_url]

Duration: 55:56
Every startup pitch deck has a "why now" slide. Most of them are nonsense, barely considered, and only there to tick a box.But timing is more than a slide, it can make or break a company. It’s the difference between pets…
Make your product irresistible: Rob Snyder on the PULL framework [not-audio_url] [/not-audio_url]

Duration: 53:55
You’ve done all the research, implemented every startup strategy you could find, but your product just isn’t selling. Where do you start looking for the problem? And how do you identify and implement the solution?In this…
Why Gary Lo's product strategy has evolved in the era of DIY software [not-audio_url] [/not-audio_url]

Duration: 52:40
What if writing software became as easy as taking a selfie?This episode, Yaniv Bernstein sits down with Gary Lo - founder of OpenBA and one of the sharpest AI-and-startups thinkers Yaniv knows - to discuss the concept of…