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Qwen3.5 Plus 2026-04-20 (medium) vs Step 3.7 Flash (low)

Qwen3.5 Plus 2026-04-20 (medium) leads on average score with 7.7 vs 7.2. Qwen3.5 Plus 2026-04-20 (medium) has the lower benchmark cost at $0.435 vs $0.449. Step 3.7 Flash (low) is faster at 20.72s vs 54.06s, with pass rates of 65.2% vs 63.8%.

Last updated at: 2026-10-19

Compared models

Rank
#139
Total Output Tokens
200,348
Response Time (avg)
54.06s
Total Cost
$0.435
Rank
#176
Total Output Tokens
339,108
Response Time (avg)
20.72s
Total Cost
$0.449
Recommended model Qwen3.5 Plus 2026-04-20 (medium)

It has the strongest score in this comparison (7.7) and the best overall balance of cost and response time across 2 models.

Detailed comparison

Metric Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 medium Release: 2026-04-20 Step 3.7 Flash Step 3.7 Flash low Release: 2026-05-29
Score 7.7 7.2
Rank #139 #176
Reliability 9.7 10.0
Consistency 9.1 7.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 65.2% 63.8%
Flaky tests 2 6
Total Runs 69 69
Cost per result 3.481 4.078
Total Cost $0.435 $0.449
Input Price $0.300 / 1M $0.200 / 1M
Output Price $1.800 / 1M $1.150 / 1M
Cache Read Price N/A $0.040 / 1M
Cache Write Price $0.375 / 1M N/A
Total Input Tokens 176,539 292,685
Output Tokens 4,419 339,108
Reasoning Tokens 195,929 0
Response Time (avg) 54.06s 20.72s
Response Time (max) 203.01s 124.75s
Response Time (total) 1189.36s 476.67s
Parameters ~397B total (~17B active) 198B total (11B active)
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.

#139 Qwen3.5 Plus 2026-04-20

medium
Cost
$0.008
Time
76.7s
Tokens
4,355 tok

#176 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 2026-04-20 6.2 8.7 33.3% 0 125.25s 7,630 308 58,682
Step 3.7 Flash 8.2 7.2 88.9% 1 9.46s 7,437 18,685 0

Quick Compare

Switch Comparison Pair

Step 3.7 FlashlowvsGLM 5mediumLongCat 2.0mediumvsStep 3.7 FlashlowQwen3.6 27BmediumvsStep 3.7 FlashlowMuse Glimmer 30BhighvsQwen3.5 Plus 2026-04-20mediumGPT-6 LunahighvsQwen3.5 Plus 2026-04-20mediumMuse WonderhighvsQwen3.5 Plus 2026-04-20mediumQwen3.7 FlashhighvsStep 3.7 FlashlowClaude Opus 5nonevsStep 3.7 FlashlowQwen3.8 27BmediumFree AvailablevsStep 3.7 FlashlowMuse WonderxhighvsQwen3.5 Plus 2026-04-20mediumQwen3.5 Plus 2026-02-15mediumvsStep 3.7 FlashlowQwen3.8 Flash NextxhighvsStep 3.7 Flashlow