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Briefing · Jul 5

Anthropic Dominates Token Race as Fable Gets Mixed Reviews

Anthropic Leads, Open Weights Rise

Vercel AI Gateway data — aggregating trillions of tokens from millions of developers monthly — shows Anthropic in clear dominance, with open-weight models also gaining meaningful ground. It's one of the clearest real-world signals yet of where developers are actually spending compute.

Fable: Powerful but Uneven

Reactions to Fable 5 are mixed. Theo (t3.gg) finds it strong on infra, databases, and web — but easily confused about mobile app development. Dan Shipper joked about Fable spinning up 100 agents just to change a button color, capturing a broader frustration with AI coding tools over-engineering simple tasks. Mark Gurman noted iOS tooling should improve significantly with iOS 27.

Spellbook's Quiet $100M ARR Milestone

Spellbook, launched on Replit three years ago with no database and built-in auth, is on track to cross $100M ARR this year — a reminder that distribution and timing still beat elaborate architecture.

TBPN's OpenAI Sale Gets a Closer Look

Ramp CEO Eric Glyman shared that David Senra pitched TBPN when it had fewer than 1,000 listeners; it was later acquired by OpenAI in April. A Fortune piece surfaced the full story, highlighting how early conviction in founder-led media paid off.