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SpaceXAI Launches Grok 4.5, an 'Opus-Class' Coding Model at Under Half the Price, Built With Newly-Acquired Cursor · Minds, Bodies, and Terawatts

• 0:00
  [Host] This is Minds, Bodies, and Terawatts, where the tools that build the future keep quietly aiming at the people who use them. Reuters reported this week that Elon Musk's newly-rebranded SpaceXAI launched Grok 4.5, and it went public yesterday.
• 0:14
  [Guest] And it's not a chatbot play. Musk is pitching it at coders — "Opus-class," he calls it, but faster and under half the price. Two dollars per million tokens of input, against Anthropic's Opus at five.
• 0:28
  [Host] Half the cost of the thing it's copying. What's the catch?
• 0:32
  [Guest] Where it came from. This is the first Grok trained on data from Cursor, the code editor SpaceX bought for sixty billion dollars. The editor millions of developers type into every day is now feeding the model built to do their jobs.
• 0:48
  [Host] Wait. The tool that helps developers write code got turned into the model that replaces them?
• 0:54
  [Guest] That's the loop. Developers used Cursor, Cursor learned from them, and Grok 4.5 trained on that. Every keystroke was a lesson for its own successor.
• 1:04
  [Host] That feels different from "AI is coming for jobs" in the abstract. This is the specific tool on my screen.
• 1:11
  [Guest] It is. And it's not hypothetical — at Google's Cloud Next conference, Sundar Pichai said three-quarters of the company's new code is now machine-written. Coding was supposed to be the safe career.
• 1:24
  [Host] But that's the machine assisting humans. A cheaper, faster model doesn't automatically mean fewer of those humans, right?
• 1:30
  [Guest] Price is what flips it. When an Opus-class coder drops to two dollars a million tokens, the math on hiring a junior developer changes. Postings for software developers are already down about seventy percent from their 2022 peak.
• 1:45
  [Host] So who actually wins?
• 1:46
  [Guest] The company that owns the whole stack. Musk has the chips at Colossus, the model in Grok, and now the editor in Cursor. He isn't renting intelligence from anyone — and he's undercutting the rival he sells the pieces to.
• 2:02
  [Host] But companies have tried this and pulled back. Klarna swapped hundreds of support staff for an AI bot, then admitted it went too far and started rehiring.
• 2:12
  [Guest] Klarna's CEO said they'd gone "too AI-first" and underestimated human empathy. But notice what came back — the messy, relational cases. The routine grunt work didn't. And a junior developer's grunt work is exactly that routine half.
• 2:26
  [Host] And the developer told to "learn to code" a decade ago?
• 2:30
  [Guest] Gets to watch the tool they learned on become the reason the next hire doesn't happen. "Software engineer" stops being a job title and becomes a literacy, like writing. Everyone does it. Nobody gets paid for it.
• 2:44
  [Host] That's a grim place to leave a Thursday. Patrick Deglon, in Unscarcity, calls this the Labor Cliff — machine labor getting cheaper than human labor faster than we invent new work. Grok 4.5 didn't cause it. It just put a price tag on it: two dollars a million.
• 3:03
  [Guest] And when the cost of thinking falls that far, the real fight is over what we build on the other side. For more on the collapsing cost of cognitive work, head to unscarcity dot ai. The book is on Amazon, the audiobook is on Spotify. This has been Minds, Bodies, and Terawatts.