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You are overpaying for intelligence. Grok 4.5 just proved it
SpaceXAI’s new model runs frontier tasks at a tenth of the cost per task. Here is the router that tells you exactly which model to use for every job…
Jul 9
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Ruben Dominguez
67
2
Claude Fable 5 is free for 4 more days. Here is the full guide
Anthropic’s strongest model ever is included in paid plans until July 12. The best practices, the copy-paste prompts, and the two patterns that keep…
Jul 8
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Ruben Dominguez
81
2
3
Set a metric. Walk away. Let the agent optimize overnight.
Karpathy runs 100 experiments while he sleeps. One engineer beat off-the-shelf compression tools for $40. Here is the exact playbook to run this on any…
Jul 3
•
Ruben Dominguez
63
1
OpenAI's $122B masterclass: 10 takeaways from Sarah Friar
Compute scarcity, the pricing ceiling, and the memory moat, and what founders and investors should steal.
Jun 29
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Ruben Dominguez
77
No, You Don’t Need an AI Agent
The agent every vendor is selling you is usually a workflow in disguise, and paying agent prices for it wastes money you don’t have.
Jun 19
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Ruben Dominguez
64
7
6
Dario Amodei's full picture: 10 takeaways that matter
Jobs, war, government power, and a 25% collapse bet, from the Circuit documentary.
Jun 18
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Ruben Dominguez
62
2
Inference engineering is the 80% cost cut most teams miss
Two AI products ship the same feature. One feels instant and costs pennies. The other lags and burns money. Here is the split that decides which one you…
Jun 16
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Ruben Dominguez
63
3
The head of Claude Code stopped prompting Claude. Most builders missed why
Loop engineering, the five blocks Claude Code and Codex both ship in 2026, copy-paste /goal conditions and SKILL.md, the maker-checker split, and the…
Jun 12
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Ruben Dominguez
72
3
The one-person company stopped being a meme. This is the operating system that runs it
The 4-stage AI-native build, the 12-function founder OS, 30+ copy-paste Claude prompts, the solo tool stack, and the 30-day rollout that lets one person…
Jun 11
•
Ruben Dominguez
82
2
Satya Nadella said every agent needs its own computer. Most builders are still handing theirs a chat box.
The microVM stack that gives any agent a full machine without exposing your infra. 12 copy-paste prompts, the 4-layer security model, the provider math…
Jun 8
•
Ruben Dominguez
64
3
Your AI agent is going to hallucinate at scale
The bigger the memory, the worse it gets. The 6 architectures that fix it, the 12 prompts that constrain Claude into structured output, and the 30-day…
Jun 3
•
Ruben Dominguez
67
2
How Lovable hit $400M ARR in 14 months with 146 people and almost zero paid ads
The organic growth playbook, stage by stage
May 29
•
Ruben Dominguez
89
3
14
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