Qwen 3.5 Flash

Qwen 3.5 Flash is a model from Alibaba, released February 23, 2026. Its best result is #34 of 149 on LegalBench.

Release Date: Feb 23, 2026

Developer Alibaba Β πŸ‡¨πŸ‡³
Context Window 1M
Max Output Tokens 66k
Token Costs (in/out) $0.10/0.40
Weights Private
Input Modalities

Accuracy

65.93 %

Avg. Cost (In/Out)

$ 0.10 / $ 0.40

Latency

2 min 30 s

Vals Index
BenchmarksAccuracyRankings

33.00%

Β±1.79
83/104

70.62%

Β±2.09
91/106

67.37%

Β±0.92
25/98

42.49%

Β±3.46
53/90

72.16%

Β±0.88
68/145

82.83%

Β±1.90
60/138

83.28%

Β±1.04
49/143

84.28%

Β±0.41
34/149

84.06%

Β±0.36
68/138

81.91%

Β±0.93
38/93

64.40%

Β±2.14
74/88

24.72%

Β±4.60
54/67
Proprietary BenchmarksAcademic BenchmarksIndustry Partners
Vals
Default Provider : Alibaba
Temperature: 1
Top P: Default
Top K: Default
Max Output Tokens: 65,536

Updates

Mar 2, 2026

We evaluated Qwen 3.5 Flash on the Vals Index. Here are the key takeaways: