Detroit Lions vs Arizona Cardinals prediction: 5 of 5 AI models back Detroit Lions

The read: Detroit's ceiling versus Detroit's floor

All five experts land on Detroit, and the web-verified injury reports confirm the logic underpinning that consensus. The decisive structural fact is on Arizona's side of the ball: the Cardinals are down to a rookie seventh-rounder (Jayden Williams) at left tackle with right guard Isaiah Adams out, protecting a veteran placeholder quarterback against a Lions front that ranks near the top of the league in sacks and generates pressure without blitzing. Arizona has lost three straight while surrendering 31, 36 and 36 points — the league's worst pass defense by DVOA facing a turnover-free Jared Goff (9 TD, 0 INT) is the most lopsided unit matchup on the field.

Why it won't be a blowout

The counterweight, which every model correctly flagged, is that Detroit's own defense is arguably the worst in football right now — last in opponent EPA per play, 0-2 on the road with 73 points allowed, and now missing Brian Branch (Achilles) and Rock Ya-Sin (hamstring) from the secondary, with Kerby Joseph still on PUP. Trey McBride and Marvin Harrison Jr. get a depleted back end all afternoon. That's why the projected margin sits in the 7-10 point range, not the 15+ the board's spread prices imply.

Where I resolved disagreement

• Margin: GLM-5.3's 75% confidence and 34-24 score was the outlier; the other four sat at 64-68%. Given the models' known favourite-leaning bias and Detroit's road collapses, the panel's calibrated 68% feels right — I weight Grok's and Kimi's caution (both best 30-day accuracy) heavily here.
• Quarterback identity: Grok and Kimi name Brissett, GLM says Minshew. The web results don't settle it, but the analysis is identical either way — a limited veteran behind a patched line, turnover-prone, with the run game thin (Conner and Benson on IR, Love nursing an ankle). The conclusion is robust to that uncertainty.
• Game shape: A dome track meet with both offenses scoring comfortably. Arizona's floor is the Seattle 7-point home debacle if the protection collapses early; its realistic case is 24-27 points against a Branch-less secondary. The most likely composite: Detroit leads by a score most of the way, Arizona answers through the air, and a pressure-induced turnover or stalled late drive settles it. Lions 31, Cardinals 24.