Mystery model Pixel Canary ties GPT-6 Astra on Vercel benchmark

Mark Kretschmann @mark_kOriginally posted 2026.09.27

Open original on X

A mystery coding model called Pixel Canary just appeared on Vercel’s AI Gateway, free to use while it’s in stealth. Nobody has disclosed who made it. On Vercel’s Next.js agent benchmark, it passed 28 of 31 tasks, tying GPT-6 Astra. Give it the Next.js docs through "AGENTS(.)md" and it passes 30 of 31. The benchmark allows up to four attempts per task, so I’d like to see how it holds up in real projects. You can try it as "stealth/pixel-canary". Just be aware that the provider may retain prompts and outputs for training. Any guesses who’s behind it?