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GPT 5.3 Chat vs Grok 4.7 (xhigh)

Grok 4.7 (xhigh) leads on average score with 7.5 vs 7.5. GPT 5.3 Chat has the lower benchmark cost at $0.533 vs $2.625. GPT 5.3 Chat is faster at 6.56s vs 115.74s, with pass rates of 65.2% vs 77.3%.

Last updated at: 2026-09-21

Compared models

Rank
#112
Total Output Tokens
28,179
Response Time (avg)
6.56s
Total Cost
$0.533
Rank
#107
Total Output Tokens
505,069
Response Time (avg)
115.74s
Total Cost
$2.625
Recommended model GPT 5.3 Chat

Its score stays close to the best score here (7.5 vs 7.5), while costing about 4.9x less than Grok 4.7 (xhigh).

Detailed comparison

Metric GPT 5.3 Chat GPT 5.3 Chat none Release: 2026-03-03 Grok 4.7 Grok 4.7 xhigh Release: 2026-09-21
Score 7.5 7.5
Rank #112 #107
Reliability 10.0 9.6
Consistency 8.6 7.7
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 65.2% 77.3%
Flaky tests 4 6
Total Runs 66 66
Cost per result 4.097 18.745
Total Cost $0.533 $2.625
Input Price $1.750 / 1M $1.600 / 1M
Output Price $14.000 / 1M $4.800 / 1M
Total Input Tokens 78,846 124,896
Output Tokens 28,179 4,890
Reasoning Tokens 0 500,179
Response Time (avg) 6.56s 115.74s
Response Time (max) 18.33s 775.64s
Response Time (total) 137.77s 2546.31s
Parameters ~400B total (~17B 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.

#112 GPT 5.3 Chat

none
Cost
$0.008
Time
8.1s
Tokens
634 tok

#107 SpaceXAI: Grok 4.7

xhigh
Cost
$0.235
Time
544.2s
Tokens
39,247 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 5.3 Chat 5.6 4.7 55.6% 2 10.52s 7,302 6,632 0
Grok 4.7 5.3 4.5 55.6% 2 414.53s 10,168 327 256,935

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