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Alibaba (Qwen) · Released Feb 16, 2026

Qwen3.5 Plus

Qwen vision-language model for visual reasoning, documents, and agent tasks.

  • Proprietary
  • Reasoning
  • Tool calling
  • Vision
  • Video input
Capability
146.8ECI · #65 of 148
Input
$0.40per 1M tokens
Output
$2.40per 1M tokens
Context
1M66K max output
Pricing

What it costs

Input
$0.40per million tokens
Output
$2.40per million tokens
Blended (3:1)
$0.90pricier than 53% of priced models

Typical monthly bills

Monthly usageEstimated cost
Side project2M input + 0.5M output tokens$2.00
Team assistant25M input + 5M output tokens$22.00
Production app250M input + 50M output tokens$220.00

Official Alibaba API price, as listed on models.dev.

Capability

Independent benchmarks

146.8Epoch Capabilities Index
#65 of 148 scored models
88Median 146167

The shaded band is Epoch AI’s confidence range (144.6–148.1); the tick marks the median scored model.

  • GPQA DiamondGraduate-level science questions84.9%
  • OTIS Mock AIME 2024–2025Competition mathematics86.7%
  • SimpleQA VerifiedShort factual questions25.4%

Scores from Epoch AI, run independently of Alibaba (Qwen).

Specifications

The details

Lab
Alibaba (Qwen)
Released
Feb 16, 2026
Knowledge cutoff
Apr 2025
Context window
1,000,000 tokens
Max output
65,536 tokens
Inputs
Text, Images, Video
Output
Text
Reasoning
Thinking budget
Tool calling
Yes
Structured output
No
Weights
Proprietary
API model ID
qwen3.5-pluson Alibaba
Availability
10 API providerslisted on models.dev

Alibaba model documentation

Same lab

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Questions

About Qwen3.5 Plus

How much does Qwen3.5 Plus cost?

Qwen3.5 Plus costs $0.40 input / $2.40 output per million tokens (official Alibaba API price). At a 3:1 input-to-output mix that is $0.90 per million tokens, more expensive than 53% of the 360 priced models we track.

What is the context window of Qwen3.5 Plus?

Qwen3.5 Plus accepts up to 1,000,000 tokens per request and can write up to 65,536 tokens in one response.

How good is Qwen3.5 Plus?

Epoch AI gives Qwen3.5 Plus a Capabilities Index score of 146.8 (likely range 144.6–148.1), ranking it #65 of 148 models Epoch has scored. Epoch AI benchmark results: GPQA Diamond 84.9%, OTIS Mock AIME 2024–2025 86.7%, SimpleQA Verified 25.4%.

Is Qwen3.5 Plus open source?

No. Qwen3.5 Plus is proprietary; you use it through Alibaba’s API or partner platforms.

What inputs does Qwen3.5 Plus support?

Qwen3.5 Plus accepts text, images and video and replies in text. It is a reasoning model, supports tool calling.

When was Qwen3.5 Plus released?

Alibaba (Qwen) released Qwen3.5 Plus on Feb 16, 2026. Its training data runs to Apr 2025.

What are the best alternatives to Qwen3.5 Plus?

The closest current models from other labs on capability, price and release date are MiniMax-M2.5 (MiniMax, ECI 146.7, $0.30 / $1.20), Nemotron 3 Ultra 550B A55B (NVIDIA, ECI 146.2, $0.50 / $2.50), Kimi K2.5 (Moonshot AI, ECI 148.0, $0.60 / $3.00) and GLM-5 (Z.ai (Zhipu), ECI 145.8, $1.00 / $3.20).