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Qwen3.5 Plus 2026-02-15 (medium) vs Step 3.7 Flash (low)

Qwen3.5 Plus 2026-02-15 (medium) leads on average score with 7.2 vs 7.2. Step 3.7 Flash (low) has the lower benchmark cost at $0.449 vs $0.567. Step 3.7 Flash (low) is faster at 20.72s vs 97.68s, with pass rates of 72.5% vs 63.8%.

Last updated at: 2026-10-01

Compared models

Rank
#140
Total Output Tokens
302,730
Response Time (avg)
97.68s
Total Cost
$0.567
Rank
#147
Total Output Tokens
339,108
Response Time (avg)
20.72s
Total Cost
$0.449
Recommended model Step 3.7 Flash (low)

Its score stays close to the best score here (7.2 vs 7.2), while responding about 4.7x faster than Qwen3.5 Plus 2026-02-15 (medium).

Detailed comparison

Metric Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 medium Release: 2026-02-15 Step 3.7 Flash Step 3.7 Flash low Release: 2026-05-29
Score 7.2 7.2
Rank #140 #147
Reliability 10.0 10.0
Consistency 7.9 7.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 72.5% 63.8%
Flaky tests 6 6
Total Runs 69 69
Cost per result 4.047 4.078
Total Cost $0.567 $0.449
Input Price $0.260 / 1M $0.200 / 1M
Output Price $1.560 / 1M $1.150 / 1M
Total Input Tokens 249,486 292,685
Output Tokens 14,481 339,108
Reasoning Tokens 288,249 0
Response Time (avg) 97.68s 20.72s
Response Time (max) 304.85s 124.75s
Response Time (total) 1562.81s 476.67s
Parameters ~397B total (~17B active) 198B total (11B active)
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#140 Qwen3.5 Plus 2026-02-15

medium
Cost
$0.011
Time
125.5s
Tokens
7,040 tok

#147 Step 3.7 Flash

low
Invalid SVG
Cost
$0.004
Time
25.3s
Tokens
3,072 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
Qwen3.5 Plus 2026-02-15 6.6 7.1 44.4% 1 180.70s 6,950 420 80,595
Step 3.7 Flash 8.2 7.2 88.9% 1 9.46s 7,437 18,685 0

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