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Qwen · Balanced

Qwen3.5 Plus

Added Feb 16, 2026

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Use in the app

Qwen 3.5 Plus is a commercial model with hybrid linear attention and sparse MoE architecture. Supports text, image, and video input with a 1M context window.

  • Vision
  • Video input
Input
Text, Images, Video
Output
Text
Discovery tier
Balanced

Pricing

USD per 1M tokens
Input
$0.40
Output
$2.40
Cache read
$0.04

Reference prices as published by the model provider. API example

Specifications

Context window
983.6K
Max output
65.5K
Average output (7 days)
141 tokens
Longer than 14% of 468 models

Side by side

Qwen3.5 Plus compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

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Qwen3.5 PlusQwenThis modelGPT-3.5 TurboOpenAIRemove
ProviderQwenOpenAI
Discovery tierBalancedBalanced
AddedFeb 16, 2026Jan 1, 2024
Limits
Context window983.62KBest16.39K
Max output65.54KBest4.1K
Average output141 tokens—
Pricing, USD per 1M tokens
Input$0.40Best$0.50
Output$2.40$1.50Best
Cache read$0.04—
Benchmark indexes
Intelligence Index—5.5
Coding Index—10.7
Capabilities
VisionYesNo
Video inputYesNo
Reasoning effort——

Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

  • Qwen3.5 Plus
  • GPT-3.5 Turbo

Intelligence Index

  • Qwen3.5 Plus—
  • GPT-3.5 Turbo5.5
3.8Catalog models by score55.1

Indexes

  • Coding Index

    Composite of the coding evaluations

    • Qwen3.5 Plus: —
    • GPT-3.5 Turbo: 10.7

Reasoning and knowledge

  • GPQA Diamond

    Graduate-level science questions

    • Qwen3.5 Plus: —
    • GPT-3.5 Turbo: 29.7%

  • MMLU-Pro

    Multi-subject knowledge and reasoning

    • Qwen3.5 Plus: —
    • GPT-3.5 Turbo: 46.2%

Math

  • MATH-500

    Competition math problems

    • Qwen3.5 Plus: —
    • GPT-3.5 Turbo: 44.1%

Scores from Artificial Analysis, updated Oct 26, 2026.

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart
curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen/qwen3.5-plus",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'
import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="qwen/qwen3.5-plus",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

Qwen

Other Qwen models, starting with the same family.