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#142

Qwen3.5 Plus 2026-02-15

Qwen Release: 2026-02-15 Tested on: 2026-10-01 00:30 qwen/qwen3.5-plus-02-15::medium
~397B total (~17B active)MoEClosedEstimated
(medium) (none)

Summary

Qwen3.5 Plus 2026-02-15 scores 7.2 on AI BENCHY and ranks #142. It has 10.0 reliability, a 72.5% pass rate, $0.567 total cost, and 97.68s average response time.

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.

Parameter source Availability source

Score

7.2

Consistency

7.9

Reliability

10.0

Total Cost (Current Price)

$0.567

Total Output Tokens

302,730

Total Input Tokens

249,486

Input Price

$0.260 / 1M

Output Price

$1.560 / 1M

Cache Read Price

N/A

Cache Write Price

N/A

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Tests Correct

Wrong Tests: 9

Attempt pass rate: 72.5%

Flaky tests

6

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

Response Time (avg)

97.68s

Response Time (max): 304.85s

Response Time (total): 1562.81s

Wrong answer: 6 Timed out: 2 Invalid tool call: 1

Hamster playing table tennis

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

#142 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
2026-10-01 00:30 Re-test 7.2 10.0 $0.567 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)
2026-10-01 00:30 · Current run69/69 attempts7.27.910.014/236302,730249,486$0.56797.68s
2026-06-04 13:17 · New test added63/63 attempts7.98.58.914/214191,76340,918$0.31073.79s
Difference—-0.7-0.6+1.10+2+110967+208568+$0.257+23885ms

Benchmark coverage differs: 69/69 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.

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 Plus 2026-02-15mediumvsQwen3.5-27BnoneQwen3.5 Plus 2026-02-15mediumvsQwen3.8 27BmediumFree AvailableQwen3.5 Plus 2026-02-15mediumvsGemini 3.5 Flash LitemediumQwen3.5 Plus 2026-02-15mediumvsGemini 3.8 FlashlowQwen3.5 Plus 2026-02-15mediumvsQwen3.6 PlusmediumQwen3.5 Plus 2026-02-15mediumvsClaude Opus 4.8lowQwen3.5 Plus 2026-02-15mediumvsLongCat 2.0highQwen3.5 Plus 2026-02-15mediumvsQwen3.7 FlashhighQwen3.5 Plus 2026-02-15mediumvsGemini 2.5 FlashmediumQwen3.5 Plus 2026-02-15mediumvsLongCat 2.0medium

Category Breakdown

Category Score Consistency Tests Correct
Agentic 6.1 3.1
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