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GPT-5.4 Mini (medium) vs Qwen3.5-27B (medium)

The average score is effectively tied at 7.5 vs 7.5. GPT-5.4 Mini (medium) has the lower benchmark cost at $0.786 vs $0.982. GPT-5.4 Mini (medium) is faster at 26.72s vs 113.28s, with pass rates of 68.2% vs 75.8%.

Last updated at: 2026-09-10

Compared models

Rank
#109
Total Output Tokens
158,344
Response Time (avg)
26.72s
Total Cost
$0.786
Rank
#107
Total Output Tokens
614,909
Response Time (avg)
113.28s
Total Cost
$0.982
Recommended model GPT-5.4 Mini (medium)

It has the best score here (7.5), while responding about 4.2x faster than Qwen3.5-27B (medium).

Detailed comparison

Metric GPT-5.4 Mini GPT-5.4 Mini medium Release: 2026-03-17 Qwen3.5-27B Qwen3.5-27B medium Release: 2026-02-24
Score 7.5 7.5
Rank #109 #107
Reliability 10.0 10.0
Consistency 8.1 7.8
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 68.2% 75.8%
Flaky tests 5 6
Total Runs 66 66
Cost per result 6.546 8.217
Total Cost $0.786 $0.982
Input Price $0.750 / 1M $0.195 / 1M
Output Price $4.500 / 1M $1.560 / 1M
Total Input Tokens 97,164 111,644
Output Tokens 6,211 16,113
Reasoning Tokens 152,133 598,796
Response Time (avg) 26.72s 113.28s
Response Time (max) 138.75s 1026.43s
Response Time (total) 587.90s 2492.26s
Parameters ~400B total (~17B active) 27B
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#109 GPT-5.4 Mini

medium
Cost
$0.056
Time
95.5s
Tokens
12,464 tok

#107 Qwen3.5-27B

medium
Cost
$0.008
Time
62.0s
Tokens
3,099 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-5.4 Mini 8.4 7.4 88.9% 1 57.87s 7,305 467 40,902
Qwen3.5-27B 6.2 7.1 55.6% 1 160.69s 7,895 6,381 89,388

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