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GPT-5.2 (medium) vs Grok 4.5 (medium)

Grok 4.5 (medium) leads on average score with 8.5 vs 8.4. GPT-5.2 (medium) has the lower benchmark cost at $1.182 vs $2.042. GPT-5.2 (medium) is faster at 28.51s vs 68.59s, with pass rates of 72.7% vs 83.3%.

Last updated at: 2026-09-23

Compared models

Rank
#64
Total Output Tokens
71,252
Response Time (avg)
28.51s
Total Cost
$1.182
Rank
#60
Total Output Tokens
299,460
Response Time (avg)
68.59s
Total Cost
$2.042
Recommended model GPT-5.2 (medium)

Its score stays close to the best score here (8.4 vs 8.5), while costing about 1.7x less than Grok 4.5 (medium).

Detailed comparison

Metric GPT-5.2 GPT-5.2 medium Release: 2025-12-11 Grok 4.5 Grok 4.5 medium Release: 2026-07-08
Score 8.4 8.5
Rank #64 #60
Reliability 10.0 10.0
Consistency 8.5 8.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 72.7% 83.3%
Flaky tests 4 3
Total Runs 66 66
Cost per result 8.438 12.007
Total Cost $1.182 $2.042
Input Price $1.750 / 1M $2.000 / 1M
Output Price $14.000 / 1M $6.000 / 1M
Total Input Tokens 105,013 122,155
Output Tokens 9,914 5,514
Reasoning Tokens 61,338 293,946
Response Time (avg) 28.51s 68.59s
Response Time (max) 116.86s 436.38s
Response Time (total) 456.13s 1508.91s
Parameters ~1.2T total (~80B active) ~1.7T total (~170B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#64 GPT-5.2

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

#60 SpaceXAI: Grok 4.5

medium
Cost
$0.044
Time
59.4s
Tokens
7,512 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 7.6 7.2 77.8% 1 155.69s 9,579 390 104,634

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