Pixel Canary is now available in stealth for free on AI Gateway
Source
Zachary Chen
Author
Zachary Chen
Date
Key takeaways · AI-distilled
Vercel's Next.js evalA repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.Full definition → scores use pass@4, so a task counts as passed if any of up to four attempts succeeds; Pixel Canary's 28/31 baseline and 30/31 with AGENTS.md docs are on that basis.
Zero data retention is not available for the stealth model, and Vercel says prompts and responses sent to it may be used for training and model improvement.
Running `vercel ai-gateway setup` detects installed coding agents, provisions or reuses a Gateway API key, and wires them to the gateway so stealth/pixel-canary can be selected.
Terms in this piece · Glossary
eval — A repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.
Why it matters
A new stealth coding model, Pixel Canary, is free on Vercel's AI Gateway, tying GPT-6 Astra on Next.js benchmarks and reaching 96.8% pass rate when given AGENTS.md documentation.
