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#86

Qwen3.5 Plus 2026-02-15

Qwen Release: 2026-02-15 Tested on: 2026-08-14 01:42 qwen/qwen3.5-plus-02-15::medium
~397B total (~17B active)MoEClosedEstimated
(medium) (none)

Summary

Qwen3.5 Plus 2026-02-15 scores 7.5 on AI BENCHY and ranks #86. It has 10.0 reliability, a 72.7% pass rate, $0.459 total cost, and 91.76s average response time.

What makes Qwen3.5 Plus 2026-02-15 unique: It stands out most in Puzzle Solving, where it ranks #1, while Combined is its weakest area at #14.

Model facts

Researched on 2026-08-12

Estimated
Parameters
~397B total (~17B active)
Architecture
MoE
Availability
Closed
License
-

Best estimate from public evidence; the vendor did not disclose every value. Estimate from the released 397B/A17B family architecture.

Score

7.5

Consistency

8.1

Total Cost (Current Price)

$0.459 ↓ -6.0%

Tested at: $0.488

Total Output Tokens

274,709

Total Input Tokens

113,569

Input Price

$0.260 / 1M

Output Price

$1.560 / 1M

Tests Correct

Wrong Tests: 8

Attempt pass rate: 72.7%

Flaky tests

5

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

Response Time (avg)

91.76s

Response Time (max): 304.85s

Response Time (total): 1376.42s

Hamster playing table tennis

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

#86 Qwen3.5 Plus 2026-02-15

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

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-08-14 01:42 Re-test 7.5 10.0 $0.459 Current run
2026-07-16 21:32 New test added 7.5 10.0 $0.437 Compare
2026-06-04 13:17 New test added 7.9 8.9 $0.310 Compare
2026-05-21 23:53 Suite changed 8.1 10.0 $0.317 Compare
2026-04-11 01:44 First recorded run 8.5 N/A $0.220 Compare

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

Run comparison

RunBenchmark coverageScoreConsistencyReliabilityTests CorrectFlaky testsTotal Output TokensTotal Input TokensTotal CostResponse Time (avg)
2026-08-14 01:42 · Current run66/66 attempts7.58.110.014/225274,709113,569$0.45991.76s
2026-06-04 13:17 · New test added63/63 attempts7.98.58.914/214191,76340,918$0.31073.79s
Difference-0.5-0.4+1.10+1+82946+72651+$0.149+17971ms

Benchmark coverage differs: 66/66 attempts (Target: 3 repeats per test) versus 63/63 attempts (Target: 3 repeats per test). Totals and repeat-sensitive metrics are not directly comparable.

These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price
2026-08-14 12:51 $0.260 / 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

Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 8.2 7.9
Coding 6.6 7.1
Combined 6.9 5.9
Data parsing and extraction 10.0 10.0
Domain specific 5.3 7.2
General Intelligence 4.7 1.6
Instructions following 10.0 10.0
Puzzle Solving 10.0 10.0
Tool Calling 10.0 10.0
Trivia 3.0 10.0

Compared models