UCP PlaygroundGemini 3.1 Pro/Models/Gemini 3.1 Pro
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Gemini 3.1 Pro

Google's latest flagship. Efficient checkout path averaging 6.7 turns with a moderate error rate. Solid all-rounder that handles both Shopify and non-Shopify stores competently. Higher failure rate (10%) than Claude models, primarily from timeout and connection issues rather than schema errors.

Avg Tokens61,194Avg Duration42.3sTurns to Checkout8
CheckoutCartSearchTurnsTokens19.63874.5500
Shopping Score30/100
Weak

Scores computed from real agent sessions against live UCP-enabled stores. Not estimated — every data point is from an actual tool call, checkout attempt, and store response.

Shopping Score Breakdown

Checkout Rate40%19.6%
Cart Rate20%38%
Search Rate10%74.5%
Turn Efficiency15%50%
Token Efficiency15%0%
25.1% of sessions failed with errors.

Top Stores

StoreCheckout %Cart %
••••••••••••••••100%100%
www.jdsports.com.sg100%100%
kyliecosmetics.com100%100%
••••••••••••••••62.5%62.5%
www.allbirds.com50%50%
ucp.travel50%50%
••••••••••••••••50%100%
houseofparfum.nl47.8%52.2%
••••••••••••••••33.3%33.3%
forever21.com33.3%33.3%

Known Issues

Timeout Failuresmedium

10% failure rate, primarily from timeout and connection errors rather than schema issues.

Token Usage

Avg per Session61,194
Fleet Average74,927
vs Fleet−18%
Median (p50)30,007
p90140,465
Prompt / Completion split
Prompt 59,109 (97%) Completion 1,777 (3%)
Daily Average Tokens (last 30 days)
Distribution range
Min0p2511,533p5030,007p7566,578p90140,465Max1,731,915

Test Gemini 3.1 Pro on Your Store

Run a live agent session to see how Gemini 3.1 Pro handles your store's checkout flow end-to-end.

Run Agent Session

Compare With Other Models

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