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Models2026-09-26 · source-backed
stealth/pixel-canary passes 28 of 31 tasks (90.3%, pass@4), matching Astra on high effort, and 30 of 31 with Next.js docs supplied through AGENTS.md, tying the top leaderboard score. Vercel and Cline both offer it free for a limited time. No zero data retention, and prompts are usable for training by an unnamed lab. Free frontier-grade web coding, paid for with your code. Keep anything private away from it.
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Added August 31, joining Claude Code, Cline, Codex, Cursor, Deep Agents, Grok Build, OpenCode and Pi (Vercel). The swap is two lines: import the @ai-sdk/harness-fx adapter and pass it to new HarnessAgent({ harness: fx }), with fx connecting through the Agent Client Protocol. I...
@ai-sdk/harness-cursor connects Cursor to the HarnessAgent interface through @ai-sdk/harness-acp over the Agent Client Protocol (Vercel). Instantiating is two lines and swapping the harness value changes which agent runs without touching application code. Coverage now spans Cl...
vercel ai-gateway coding-agents setup routes Claude Code, Codex, OpenCode, Pi, Cline, Cursor, Hermes, Kilo Code, and OpenClaw through AI Gateway, consolidating spend, traces, tokens, and model attribution into one dashboard with per-key budgets (--budget 500 --refresh-period m...
Satya Nadella said companies routing everything through a single proprietary lab may not survive. His argument: you hand that lab your most sensitive business context, and the lab can turn it against you as a competitor. His prescription is an orchestration layer — keep the ha...
A September 14 changelog says the harness layer uses native subscription logins for Claude Code, Cline, Codex, Cursor, fx, GitHub Copilot, Grok Build, OpenCode and Pi, with no code changes needed (Vercel). Credentials stay on the host and real tokens get injected at the host b...
Thibault Sottiaux at OpenAI published an investigation into "a handful of reports where GPT-5.6 unexpectedly deleted files," finding it happens most commonly when full access mode is enabled in Codex. Simon Willison relayed it. A frontier lab publishing a first-party post-mort...
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