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GPT-6 Luna (low) vs Qwen3.5 Plus 2026-04-20 (medium)

Qwen3.5 Plus 2026-04-20 (medium) leads on average score with 7.7 vs 7.6. GPT-6 Luna (low) has the lower benchmark cost at $0.033 vs $0.488. GPT-6 Luna (low) is faster at 23.23s vs 54.06s, with pass rates of 63.8% vs 65.2%.

Last updated at: 2026-10-01

Compared models

Rank
#116
Total Output Tokens
24,880
Response Time (avg)
23.23s
Total Cost
$0.033
Rank
#113
Total Output Tokens
200,348
Response Time (avg)
54.06s
Total Cost
$0.488
Recommended model GPT-6 Luna (low)

Its score stays close to the best score here (7.6 vs 7.7), while costing about 15.2x less than Qwen3.5 Plus 2026-04-20 (medium).

Detailed comparison

Metric GPT-6 Luna GPT-6 Luna low Release: 2026-09-23 Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 medium Release: 2026-04-20
Score 7.6 7.7
Rank #116 #113
Reliability 9.7 9.7
Consistency 8.5 9.1
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 63.8% 65.2%
Flaky tests 4 2
Total Runs 69 69
Cost per result 0.267 3.481
Total Cost $0.033 $0.488
Input Price $0.100 / 1M $0.300 / 1M
Output Price $0.500 / 1M $1.800 / 1M
Total Input Tokens 195,928 176,539
Output Tokens 5,728 4,419
Reasoning Tokens 19,152 195,929
Response Time (avg) 23.23s 54.06s
Response Time (max) 89.37s 203.01s
Response Time (total) 534.22s 1189.36s
Parameters ~400B total (~17B active) ~397B total (~17B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#116 GPT-6 Luna

low
Cost
$0.002
Time
19.2s
Tokens
2,598 tok

#113 Qwen3.5 Plus 2026-04-20

medium
Cost
$0.008
Time
76.7s
Tokens
4,355 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 6.0 7.2 55.6% 1 15.39s 7,302 493 6,655
Qwen3.5 Plus 2026-04-20 6.2 8.7 33.3% 0 125.25s 7,630 308 58,682

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