Guillermo Rauch
Every AI Coding Weekly story that cites Guillermo Rauch (@rauchg), newest first. 5 stories since September 2026.
On X: @vercel CEO
- Opus 5.5 beat Fable 5.1 on HAProxy port time and cost
Two models did the same C to Rust port, and the gap showed up in hours and dollars rather than pass rates.
- Nat Friedman says Meta built Muse from scratch
Peter Steinberger, whose harness started the argument, backed Friedman's account and said kudos.
- Open models hit 78.4% of tokens on Vercel AI Gateway
Spend still skews closed, but the cheap models are now doing most of the work.
Have the good opinion, not the loud one
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- Two teams benchmark Jev, and it wins on speed and accuracy
Independent evals from Malte Ubl and the fx team both put Jev ahead of the small models they were already running.
- Engineers push back on Amodei's pacing the frontier call
The loudest objections came from people shipping production systems, not from other labs.
Topics Guillermo Rauch comes up in
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