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Models/Qwen 3.5 Plus (hosted 397B-A17B)
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Alibaba: Qwen 3.5 Plus (hosted 397B-A17B)

qwen-3-5-plus-hosted-397b-a17b

Qwen 3.5 Plus (hosted 397B-A17B) is a Qwen-family AI model, from Alibaba, released Feb 16, 2026.

Context
Input
/ 1M
Output
/ 1M
Released
Feb 16, 2026
Modalities

Benchmarks

Scores on standardized evaluations. Higher is better — and rank shows where Qwen 3.5 Plus (hosted 397B-A17B) lands among all models tracked on Model Beat.

32.0
Intelligence Index
Epoch AI
32nd percentile of tracked models
44.0
Coding Index
Epoch AI
44th percentile of tracked models
29.0
Agentic Index
Epoch AI
29th percentile of tracked models

Reasoning

2 evals
GPQA Diamond84.2%

Graduate-level scientific reasoning

SimpleQA Verified26.0%

Factual accuracy & hallucination

Coding

1 evals
WebDev Arena1393

Human-rated web development

Math

3 evals
AIME 2024/202585.0%

Olympiad-qualifier math

FrontierMath21.0%

Research-level math problems

FrontierMath Tier 42.1%

Hardest research math

Agentic & Tools

1 evals
APEX13.6%

Multi-step agentic tasks

Model & benchmark data from Epoch AI (CC BY); pricing, specs & descriptions from OpenRouter.