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GPT-6 Luna (medium) vs Grok 4.5 (high)

The average score is effectively tied at 8.3 vs 8.2. GPT-6 Luna (medium) has the lower benchmark cost at $0.047 vs $2.571. GPT-6 Luna (medium) is faster at 18.07s vs 72.50s, with pass rates of 73.9% vs 82.6%.

Last updated at: 2026-10-01

Compared models

Rank
#79
Total Output Tokens
53,161
Response Time (avg)
18.07s
Total Cost
$0.047
Rank
#82
Total Output Tokens
333,632
Response Time (avg)
72.50s
Total Cost
$2.571
Recommended model GPT-6 Luna (medium)

It has the best score here (8.3), while costing about 54.8x less than Grok 4.5 (high).

Detailed comparison

Metric GPT-6 Luna GPT-6 Luna medium Release: 2026-09-23 Grok 4.5 Grok 4.5 high Release: 2026-07-08
Score 8.3 8.2
Rank #79 #82
Reliability 10.0 10.0
Consistency 8.9 8.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 73.9% 82.6%
Flaky tests 3 3
Total Runs 69 69
Cost per result 0.313 15.123
Total Cost $0.047 $2.571
Input Price $0.100 / 1M $2.000 / 1M
Output Price $0.500 / 1M $6.000 / 1M
Total Input Tokens 203,193 342,124
Output Tokens 5,751 7,135
Reasoning Tokens 47,410 326,497
Response Time (avg) 18.07s 72.50s
Response Time (max) 66.44s 676.83s
Response Time (total) 415.53s 1667.51s
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.

#79 GPT-6 Luna

medium
Cost
$0.002
Time
23.6s
Tokens
2,966 tok

#82 SpaceXAI: Grok 4.5

high
Cost
$0.015
Time
29.7s
Tokens
2,737 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-6 Luna 6.6 4.6 77.8% 2 23.63s 7,302 438 10,222
Grok 4.5 10.0 10.0 100.0% 0 155.16s 9,579 357 100,752

Quick Compare

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