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OpenAI: GPT-5.2 vs xAI: Grok 4.5

The average score is effectively tied at 8.4 vs 8.4. Grok 4.5 (low) has the lower benchmark cost at $0.935 vs $0.951. Grok 4.5 (low) is faster at 15.56s vs 22.62s, with pass rates of 72.7% vs 75.8%.

Recommended modelGrok 4.5 (low)It has the strongest score in this comparison (8.4) and the best overall balance of cost and response time across all 2 models.

Last updated at: 2026-07-17

Metric GPT-5.2 GPT-5.2 medium Release: 2025-12-11 Grok 4.5 Grok 4.5 low Release: 2026-07-08
Score 8.4 8.4
Rank #21 #20
Reliability 10.0 10.0
Consistency 8.5 9.7
Tests Correct
Attempt pass rate 72.7% 75.8%
Flaky tests 4 1
Total Runs 66 66
Cost per result 6.791 5.844
Total Cost $0.951 $0.935
Input Price $1.750 / 1M $2.000 / 1M
Output Price $14.000 / 1M $6.000 / 1M
Total Input Tokens 105,004 125,596
Output Tokens 9,914 7,505
Reasoning Tokens 44,868 106,446
Response Time (avg) 22.62s 15.56s
Response Time (max) 102.93s 205.28s
Response Time (total) 339.28s 342.32s

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#21 GPT-5.2

medium
Cost
$0.047
Time
49.2s
Tokens
3,396 tok

#20 xAI: Grok 4.5

low
Cost
$0.011
Time
12.4s
Tokens
2,018 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.2 10.0 10.0 100.0% 0 22.73s 7,302 511 11,912
Grok 4.5 10.0 10.0 100.0% 0 13.72s 9,579 303 15,641

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