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OpenAI: GPT-5.2 Chat vs xAI: Grok 4.5

Grok 4.5 (low) leads on average score with 8.4 vs 8.0. GPT-5.2 Chat has the lower benchmark cost at $0.604 vs $0.935. GPT-5.2 Chat is faster at 7.65s vs 15.56s, with pass rates of 74.2% vs 75.8%.

Recommended modelGPT-5.2 ChatIts score stays close to the best score here (8.0 vs 8.4), while costing about 1.6x less than Grok 4.5 (low).

Last updated at: 2026-07-17

Metric GPT-5.2 Chat GPT-5.2 Chat none Release: 2025-12-11 Grok 4.5 Grok 4.5 low Release: 2026-07-08
Score 8.0 8.4
Rank #29 #20
Reliability 10.0 10.0
Consistency 8.6 9.7
Tests Correct
Attempt pass rate 74.2% 75.8%
Flaky tests 4 1
Total Runs 66 66
Cost per result 4.308 5.844
Total Cost $0.604 $0.935
Input Price $1.750 / 1M $2.000 / 1M
Output Price $14.000 / 1M $6.000 / 1M
Total Input Tokens 101,248 125,596
Output Tokens 30,424 7,505
Reasoning Tokens 0 106,446
Response Time (avg) 7.65s 15.56s
Response Time (max) 38.52s 205.28s
Response Time (total) 168.39s 342.32s

Hamster playing table tennis

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

#29 GPT-5.2 Chat

none
Cost
$0.010
Time
15.3s
Tokens
797 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 Chat 8.8 7.8 88.9% 1 9.82s 7,305 6,731 0
Grok 4.5 10.0 10.0 100.0% 0 13.72s 9,579 303 15,641

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