Signal
Audit grid position bias per provider
Grid position is a reported, provider-specific selection lever, so you record your rendered on-screen position per engine to avoid mistaking a position swing for a content win or loss.
Per-platform status
Where a platform documents relevant behavior, its status and source are shown. Undocumented platforms show "unknown" - honest unknowns, never invented.
| Platform | Status | Notes | Source |
|---|---|---|---|
| ChatGPT | Unknown | Not documented by this platform. | - |
| Gemini / Google AI Mode | Unknown | Not documented by this platform. | - |
| Perplexity | Unknown | Not documented by this platform. | - |
| Copilot | Unknown | Not documented by this platform. | - |
| Claude | Unknown | Not documented by this platform. | - |
Evidence and sources
This signal is typed reported (High confidence).
- ACES (arXiv:2508.02630) (opens in new tab) ยท 2026-07-08
How to act on this
When results render as a grid, record your on-screen position per engine alongside the win/no-win result and look for correlation with signals you changed.
Related checklist items
Notes
Based on ACES (arXiv:2508.02630), a controlled agent-shopping simulation, not measured real-world sales.