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

The average score is effectively tied at 7.5 vs 7.5. GPT-5.4 Nano (medium) has the lower benchmark cost at $0.142 vs $0.982. GPT-5.4 Nano (medium) is faster at 13.32s vs 113.28s, with pass rates of 65.2% vs 75.8%.

Last updated at: 2026-09-10

Compared models

Rank
#102
Total Output Tokens
99,881
Response Time (avg)
13.32s
Total Cost
$0.142
Rank
#107
Total Output Tokens
614,909
Response Time (avg)
113.28s
Total Cost
$0.982
Recommended model GPT-5.4 Nano (medium)

It has the best score here (7.5), while costing about 6.9x less than Qwen3.5-27B (medium).

Detailed comparison

Metric GPT-5.4 Nano GPT-5.4 Nano medium Release: 2026-03-17 Qwen3.5-27B Qwen3.5-27B medium Release: 2026-02-24
Score 7.5 7.5
Rank #102 #107
Reliability 10.0 10.0
Consistency 8.5 7.8
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 65.2% 75.8%
Flaky tests 4 6
Total Runs 66 66
Cost per result 1.179 8.217
Total Cost $0.142 $0.982
Input Price $0.200 / 1M $0.195 / 1M
Output Price $1.250 / 1M $1.560 / 1M
Total Input Tokens 82,828 111,644
Output Tokens 7,100 16,113
Reasoning Tokens 92,781 598,796
Response Time (avg) 13.32s 113.28s
Response Time (max) 94.06s 1026.43s
Response Time (total) 292.97s 2492.26s
Parameters ~120B total (~5B 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.

#102 GPT-5.4 Nano

medium
Cost
$0.007
Time
24.6s
Tokens
4,943 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 Nano 6.1 4.7 66.7% 2 19.12s 7,305 516 20,778
Qwen3.5-27B 6.2 7.1 55.6% 1 160.69s 7,895 6,381 89,388

Quick Compare

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