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GPT-5.6 Luna (high) vs Qwen3.5 Plus 2026-02-15 (medium)

GPT-5.6 Luna (high) leads on average score with 7.6 vs 7.5. GPT-5.6 Luna (high) has the lower benchmark cost at $0.179 vs $0.459. GPT-5.6 Luna (high) is faster at 16.49s vs 91.76s, with pass rates of 69.7% vs 72.7%.

Last updated at: 2026-08-20

Rank
#78
Total Output Tokens
135,315
Response Time (avg)
16.49s
Total Cost
$0.179
Rank
#86
Total Output Tokens
274,709
Response Time (avg)
91.76s
Total Cost
$0.459
Recommended model GPT-5.6 Luna (high)

It has the best score here (7.6), while costing about 2.6x less than Qwen3.5 Plus 2026-02-15 (medium).

Detailed comparison

Metric GPT-5.6 Luna GPT-5.6 Luna high Release: 2026-07-09 Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 medium Release: 2026-02-15
Score 7.6 7.5
Rank #78 #86
Reliability 10.0 10.0
Consistency 8.5 8.1
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 69.7% 72.7%
Flaky tests 4 5
Total Runs 66 66
Cost per result 6.100 3.483
Total Cost $0.179 $0.459
Input Price $0.200 / 1M $0.260 / 1M
Output Price $1.200 / 1M $1.560 / 1M
Total Input Tokens 80,927 113,569
Output Tokens 5,088 9,823
Reasoning Tokens 130,227 264,886
Response Time (avg) 16.49s 91.76s
Response Time (max) 111.09s 304.85s
Response Time (total) 362.78s 1376.42s
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.

#78 GPT-5.6 Luna

high
Cost
$0.033
Time
34.2s
Tokens
5,484 tok

#86 Qwen3.5 Plus 2026-02-15

medium
Cost
$0.011
Time
125.5s
Tokens
7,040 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-5.6 Luna 5.5 4.7 55.6% 2 15.63s 7,302 510 17,746
Qwen3.5 Plus 2026-02-15 6.6 7.1 44.4% 1 180.70s 6,950 420 80,595

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