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

The average score is effectively tied at 7.9 vs 7.9. GPT-5.4 Mini (medium) has the lower benchmark cost at $1.102 vs $1.135. GPT-5.4 Mini (medium) is faster at 29.94s vs 114.73s, with pass rates of 69.6% vs 76.8%.

Last updated at: 2026-10-26

Compared models

Rank
#128
Total Output Tokens
184,172
Response Time (avg)
29.94s
Total Cost
$1.102
Rank
#125
Total Output Tokens
635,288
Response Time (avg)
114.73s
Total Cost
$1.135
Recommended model GPT-5.4 Mini (medium)

It has the best score here (7.9), while responding about 3.8x 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 7.9 7.9
Rank #128 #125
Reliability 10.0 10.0
Consistency 8.2 7.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 69.6% 76.8%
Flaky tests 5 6
Total Runs 69 69
Cost per result 7.754 8.104
Total Cost $1.102 $1.135
Input Price $0.750 / 1M $0.195 / 1M
Output Price $4.500 / 1M $1.560 / 1M
Cache Read Price $0.075 / 1M N/A
Cache Write Price N/A N/A
Total Input Tokens 238,925 288,919
Output Tokens 7,109 17,484
Reasoning Tokens 177,063 617,804
Response Time (avg) 29.94s 114.73s
Response Time (max) 138.75s 1026.43s
Response Time (total) 688.57s 2638.74s
Parameters ~400B total (~17B active) 27B
Availability Closed Open source

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.

#128 GPT-5.4 Mini

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

#125 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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