Qwen3.5 397B A17B
StandardQwen's largest MoE model with 397B total parameters, 17B active.
Top-tier reasoning and coding with efficient inference via sparse activation. Flagship of the Qwen3.5 series.
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Qwen3.5 397B A17B is somewhat expensive at $0.39/M tokens input and $2.34/M tokens output. The model supports vision/image input, extended reasoning, a 262K context window.
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Nemotron 3 Ultravs Qwen3.5 397B A17BFrequently Asked Questions about Qwen3.5 397B A17B▼
When was Qwen3.5 397B A17B released?
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Qwen3.5 397B A17B was released on February 16, 2026.
Who created Qwen3.5 397B A17B?
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Qwen3.5 397B A17B was created by Qwen.
How much does Qwen3.5 397B A17B cost?
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Qwen3.5 397B A17B costs $0.39/M input tokens and $2.34/M output tokens.
What is Qwen3.5 397B A17B API pricing?
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The Qwen3.5 397B A17B API is priced at $0.39 per million input tokens and $2.34 per million output tokens. You can access Qwen3.5 397B A17B through idapt.app alongside 200+ other AI models in one workspace.
Is Qwen3.5 397B A17B a reasoning model?
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Yes, Qwen3.5 397B A17B is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.
Does Qwen3.5 397B A17B support image or vision input?
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Yes, Qwen3.5 397B A17B supports vision/image input. You can share images in your conversation and the model will analyze and respond based on their content.
Does Qwen3.5 397B A17B support audio?
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No, Qwen3.5 397B A17B does not support audio input.
What is the context window of Qwen3.5 397B A17B?
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Qwen3.5 397B A17B has a context window of 262K tokens, meaning it can process approximately 196,608 words of context at once.
Is Qwen3.5 397B A17B open source?
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Qwen3.5 397B A17B is a proprietary model developed by Qwen. The model weights and training data are not publicly available.
What is Qwen3.5 397B A17B good at?
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Based on benchmark data, Qwen3.5 397B A17B excels at: visual analysis and image understanding. It is Qwen's capable model suitable for a wide range of tasks.
Where can I use Qwen3.5 397B A17B?
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You can chat with Qwen3.5 397B A17B on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access Qwen3.5 397B A17B through Qwen's own API or platform.