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Qwen 3.5 Plus (hosted 397B-A17B)

ECI#62
147
Alibaba
Feb. 16, 2026
Closed weights

Qwen 3.5 Plus (hosted 397B-A17B) is a closed-weights model from Alibaba, released February 16, 2026. It has an ECI score of 147 and ranks 62nd of 249 tracked models. At the time of its release, it ranked 16th of 185 tracked models.

Qwen 3.5 Plus (hosted 397B-A17B) vs select alternatives

DomainBenchmark
Qwen 3.5 Plus (hosted 397B-A17B)
Alibaba
Feb. 16, 2026
Closed weights
Alibaba
Jul. 25, 2025
Open weights
Alibaba
Feb. 13, 2026
Open weights
MiniMax
Feb. 12, 2026
Open weights
ECI scoreBest score 166
147144147147
Ranking#62#85#59#63
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85%
80%
86%
n/a
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13991384
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25%
40%
n/a
n/a

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