Qwen3.5 Plus 2026-04-20

Qwen3.5 Plus (April 2026) is a large-scale multimodal language model from Alibaba. It accepts text, image, and video input and produces text output, with a 1M token context window. This is an updated version of Qwen3.5 Plus with tiered pricing above 256K tokens.

Provider: Qwen
Released: 2026-04-27
Size: XLARGE
Free API (OpenRouter): No
Per 1M tokens: $0.40 in · $2.4 out
Rival’s tab: $0.96; 56/56 receipts survived

Free API availability

No free endpoint for Qwen3.5 Plus 2026-04-20 was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 11 Sep 2026OpenRouter usage limits

View API options

Get API accessProvider and language code samples

Provider

fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"qwen/qwen3.5-plus-20260420"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Also on NVIDIA NIM

Deep analysisPsychometrics, taste index, writing DNA

SubjectiveBench

Taste Index

Across 56 scored outputs

How this is measured →

310.31xThe default

0100headroom →

Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.

Craft45

Originality24

Plays it safe

share of outputs that are the default answer

54%

Writing DNA

Stylometric Fingerprint

Based on 27 text responses

Tick = global average

Vocabulary Diversity59%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length15.3 words

Average words per sentence.

Hedging0.28

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting4.4

**Bold** markers per 1,000 characters.

List Usage2.5

Bullet and numbered list items per 1,000 characters.

Section Structure0.76

Markdown headings per 1,000 characters.

Emoji Usage1.53

Emoji per 1,000 characters.

Transitions0.04

"However", "moreover", "furthermore" per 100 words.

Opening Habits

Consistency

63%

Across 27 responses

Favorites

Movie

The Matrix

19998.3

Album

Dark Side Of The Moon

suisside

Book

Dune

Frank Herbert

City

Tokyo

Japan

Game

Chrono Trigger

RPG4.3

Model Responses

51 outputs · $0.95 tracked across 51 receipts

Reviewing agent-written code?See a Brief PR report

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