Mystery model Pixel Canary appears on Vercel, ties GPT-6 Astra on 31-task Next.js benchmark
mark_k · x · 2026-09-27
A stealth coding model called Pixel Canary has quietly appeared on Vercel's AI Gateway, free to use as "stealth/pixel-canary" while its maker remains undisclosed.
Key points:
- Passed 28 of 31 tasks on Vercel's Next.js agent benchmark, tying GPT-6 Astra; providing Next.js docs via AGENTS.md pushes it to 30/31.
- The benchmark allows up to four attempts per task, so real-world performance still needs validation.
- Caution: the provider may retain prompts and outputs for training.
Author markk invites guesses about who's behind it.
Related event: Mystery Model Pixel Canary Surfaces on Vercel, Matches GPT-6 Astra(2 posts)→
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