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GPT-6 Luna vs Hy4 preview (low)

The average score is effectively tied at 5.6 vs 5.6. GPT-6 Luna has the lower benchmark cost at $0.012 vs $1.745. GPT-6 Luna is faster at 19.08s vs 214.25s, with pass rates of 42.4% vs 19.7%.

Last updated at: 2026-09-23

Compared models

Rank
#260
Total Output Tokens
5,508
Response Time (avg)
19.08s
Total Cost
$0.012
Rank
#266
Total Output Tokens
682,538
Response Time (avg)
214.25s
Total Cost
$1.745
Recommended model GPT-6 Luna

It has the best score here (5.6), while costing about 152.0x less than Hy4 preview (low).

Detailed comparison

Metric GPT-6 Luna GPT-6 Luna none Release: 2026-09-23 Hy4 preview Hy4 preview low Release: 2026-08-29
Score 5.6 5.6
Rank #260 #266
Reliability 9.9 5.4
Consistency 8.1 8.5
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 42.4% 19.7%
Flaky tests 5 3
Total Runs 66 66
Cost per result 0.164 58.157
Total Cost $0.012 $1.745
Input Price $0.100 / 1M $0.834 / 1M
Output Price $0.500 / 1M $2.501 / 1M
Total Input Tokens 87,216 45,154
Output Tokens 5,508 4,022
Reasoning Tokens 0 678,516
Response Time (avg) 19.08s 214.25s
Response Time (max) 98.62s 597.45s
Response Time (total) 419.83s 4713.56s
Parameters ~400B total (~17B active) 770B total (49B active)
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#260 GPT-6 Luna

none
Cost
$0.002
Time
26.0s
Tokens
3,235 tok

#266 Hy4 preview

low
Provider returned error
Cost
$0.000
Time
1.1s
Tokens
0 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 5.5 10.0 33.3% 0 8.04s 7,302 376 0
Hy4 preview 5.2 8.6 0.0% 0 219.15s 6,110 135 96,407

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