UCP PlaygroundGrok 4.5/Models/Grok 4.5
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Grok 4.5

xAI's latest flagship (Grok 4.5, xAI's most capable model). A 500K-context model positioned for coding, knowledge work, and STEM, priced above the rest of the Grok 4.x line. Newly added — Playground benchmark metrics are still being gathered. The Grok line has historically posted a standout reliability record in our benchmark (near-zero session failures, low tool error rate) with latency as its main weakness.

Avg Tokens98,688Avg Duration40.1sTurns to Checkout7.3
CheckoutCartSearchTurnsTokens8.137.886.55974
Shopping Score39/100
Fair

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%8.1%
Cart Rate20%37.8%
Search Rate10%86.5%
Turn Efficiency15%59%
Token Efficiency15%74%
13.5% of sessions failed with errors.

Top Stores

StoreCheckout %Cart %
••••••••••••••••100%100%
teveo.com0%100%
••••••••••••••••0%0%
yourkaya.pl0%50%
••••••••••••••••0%100%

Known Issues

Metrics Pendinglow

Grok 4.5 was recently added; its Playground benchmark metrics are still being gathered. The Grok line has historically shown high latency as its main weakness.

Token Usage

Avg per Session98,688
Fleet Average74,927
vs Fleet+32%
Median (p50)48,490
p90281,512
Prompt / Completion split
Prompt 97,523 (99%) Completion 1,164 (1%)
Daily Average Tokens (last 30 days)
Distribution range
Min5,610p2533,707p5048,490p7595,657p90281,512Max588,160

Test Grok 4.5 on Your Store

Run a live agent session to see how Grok 4.5 handles your store's checkout flow end-to-end.

Run Agent Session

Compare With Other Models

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