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#148

Qwen3.5-27B

Qwen Release: 2026-02-24 Tested on: 2026-08-14 01:52 qwen/qwen3.5-27b::none
27BDenseOpen source
(medium) (none)

Summary

Qwen3.5-27B scores 6.6 on AI BENCHY and ranks #148. It has 10.0 reliability, a 45.5% pass rate, $0.058 total cost, and 4.77s average response time.

What makes Qwen3.5-27B unique: Its total benchmark cost is unusually low for its score range.

Model facts

Researched on 2026-08-12

Reported
Parameters
27B
Architecture
Dense
Availability
Open source
License
Apache-2.0
Parameter source Availability source

Score

6.6

Consistency

9.3

Reliability

10.0

Total Cost (Current Price)

$0.058 ↓ -5.1%

Tested at: $0.061

Total Output Tokens

24,323

Total Input Tokens

102,325

Input Price

$0.195 / 1M

Output Price

$1.560 / 1M

Tests Correct

Wrong Tests: 13

Attempt pass rate: 45.5%

Flaky tests

2

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

4.77s

Response Time (max): 69.46s

Response Time (total): 105.00s

Wrong answer: 11 Did not follow instructions: 2

Hamster playing table tennis

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

#148 Qwen3.5-27B

none
Cost
$0.007
Time
42.9s
Tokens
4,273 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-08-14 01:52 Re-test 6.6 10.0 $0.058 ↓ Current run
2026-07-16 22:01 New test added 6.5 10.0 $0.058 ↓ Compare
2026-06-04 13:28 New test added 5.7 10.0 $0.015 ↓ Compare
2026-05-21 23:59 Suite changed 5.8 10.0 $0.017 Compare
2026-04-11 01:19 First recorded run 5.9 N/A $0.016 Compare

This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price
2026-07-18 15:17 $0.260 / 1M $2.600 / 1M
2026-08-14 12:51 $0.195 / 1M $1.560 / 1M

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

Qwen3.5-27BnonevsGemini 3.5 Flash LitelowQwen3.5-27BnonevsGemini 3.1 Flash Lite PreviewlowQwen3.5-27BnonevsLongCat 2.0highQwen3.5-27BnonevsInkling SmallmediumQwen3.5-27BnonevsGemini 3.5 FlashminimalQwen3.5-27BnonevsGemini 3.1 Flash LitelowQwen3.5-27BnonevsLongCat 2.0lowQwen3.5-27BnonevsQwen3.6 35B A3BmediumQwen3.5-27BnonevsKAT-Coder-Pro V2.5noneQwen3.5-27BnonevsQwen3.5 Plus 2026-02-15none

Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 4.8 10.0
Coding 5.8 10.0
Combined 6.4 5.8
Data parsing and extraction 10.0 10.0
Domain specific 5.3 10.0
General Intelligence 5.0 10.0
Instructions following 6.3 10.0
Puzzle Solving 6.7 7.9
Tool Calling 10.0 10.0
Trivia 3.0 10.0

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