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GPT-6 Luna (low) vs Qwen3.8 Flash Next (medium)

The average score is effectively tied at 7.6 vs 7.6. GPT-6 Luna (low) has the lower benchmark cost at $0.033 vs ~$0.047. GPT-6 Luna (low) is faster at 23.23s vs 24.79s, with pass rates of 63.8% vs 75.4%.

Last updated at: 2026-10-05

Compared models

Rank
#120
Total Output Tokens
24,880
Response Time (avg)
23.23s
Total Cost
$0.033
Rank
#119
Total Output Tokens
143,965
Response Time (avg)
24.79s
Total Cost
~$0.047
Recommended model GPT-6 Luna (low)

It has the strongest score in this comparison (7.6) and the best overall balance of cost and response time across all 2 models.

Detailed comparison

Metric GPT-6 Luna GPT-6 Luna low Release: 2026-09-23 Qwen3.8 Flash Next Qwen3.8 Flash Next medium Release: 2026-10-04
Score 7.6 7.6
Rank #120 #119
Reliability 9.7 10.0
Consistency 8.5 7.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 63.8% 75.4%
Flaky tests 4 6
Total Runs 69 69
Cost per result 0.267 ~0.314
Total Cost $0.033 ~$0.047
Input Price $0.100 / 1M N/A
Output Price $0.500 / 1M N/A
Cache Read Price $0.010 / 1M N/A
Cache Write Price $0.125 / 1M N/A
Total Input Tokens 195,928 278,792
Output Tokens 5,728 1,695
Reasoning Tokens 19,152 142,270
Response Time (avg) 23.23s 24.79s
Response Time (max) 89.37s 159.62s
Response Time (total) 534.22s 570.26s
Parameters ~400B total (~17B active) 180B total (6B active)
Availability Closed Weights available

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#120 GPT-6 Luna

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

#119 Qwen3.8 Flash Next

medium
Cost
~$0.002
Time
40.7s
Tokens
4,059 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
Qwen3.8 Flash Next 10.0 10.0 100.0% 0 45.53s 7,893 346 37,643

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