Qwen3.5 397B-A17B
Large open Qwen multimodal MoE for visual agents and long technical tasks
ECI STANDING#59 of 266
SCORE146.96145.43–148.62 CI
FRONTIER LAGLaunched 8.1 months behindScores about what o3-pro did in June 2025.
SCORES LIKE THESE MODELSQwen3.7-PlusAlibaba · Jun 2026147.41o3OpenAI · Apr 2025146.91Claude Sonnet 4.5Anthropic · Sep 2025146.84
Full Epoch Capabilities Index ranking ↗Qwen 3.5 Plus (hosted 397B-A17B)Alibaba · Feb 2026146.73
From the lab
Launch announcement · Feb 15, 2026Qwen3.5: Towards Native Multimodal AgentsRELEASE DATEFeb 15, 2026
WEIGHTSOpen weights
CONTEXT WINDOW262.1K
MAX OUTPUT65.5K
REASONINGYes
TOOL CALLINGYes
INPUTStext, image, video, audio
OUTPUTStext
Specifications from Models.dev. Availability and limits may differ by provider. Benchmark scores come from Epoch AI under CC BY 4.0.