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  1. Models
  2. Text
  3. Qwen

Qwen3.5 Plus Thinking

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

  • Reasoning
  • Vision
  • Video Input

Added Feb 16, 2026

Pricing

Auto routing · per 1M tokens
Input
$0.40
Output
$2.40
Cache read
$0.04
Compare provider prices

Specifications

Context window
983.6K
Max output
65.5K
Avg output (7d)
853 tokens
Longer than 63% of models

Benchmarks

Sourced from Vectara.

Hallucination Rate

10.7%

Hallucination Rate: 10.7
Better than 38% of models compared

Factual Consistency

89.3%

Factual Consistency: 89.3
Better than 38% of models compared

Answer Rate

99.8%

Answer Rate: 99.8
Better than 64% of models compared

Avg Summary Length

Average generated summary length

92.1

Last updated 2026-10-22 · Matched as qwen/qwen3.5-plus-2026-02-15

Vectara Leaderboard

Providers

Provider information for this model’s automatic routing. These routes cannot be selected individually.

Choose or restrict providers with the API. Provider-selection prices include the selection markup. Provider selection guide · Pricing API (JSON, USD per 1K tokens)

Cache write /M
Auto
Auto
Recommended
$0.40$2.40$0.04$0.50N/AN/A
Alibaba
Alibaba
SG
$0.40$2.40$0.04$0.50N/AN/A
Privacy:No training on prompts

Related text models

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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.

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Qwen 3.8 27B Antislop is a creative-writing finetune designed to reduce formulaic prose. Available capabilities include image understanding, tool calling, and optional reasoning, with context windows up to 262,144 tokens.

Qwen 3.8 27B DarkIdol

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Qwen 3.8 27B DarkIdol is a creative finetune served by Aoru in NVFP4 with a 262,144-token context window. It supports image understanding, tool calling, and optional reasoning.

Qwen 3.8 27B Fimi

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Qwen 3.8 27B Fimi is a creative finetune served by Aoru in NVFP4 with a 262,144-token context window. It supports image understanding, tool calling, and optional reasoning.

Qwen 3.8 27B Kimiko

qwen/qwen3.8-27b-kimiko

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Qwen 3.8 27B Kiwen

qwen/qwen3.8-27b-kiwen

Qwen 3.8 27B Kiwen is a creative finetune served by Aoru in NVFP4 with a 262,144-token context window. It supports image understanding, tool calling, and optional reasoning.