Qwen: Qwen3.5 397B A17B✓ Catalog verified
The Qwen3.5 series 397B-A17B native vision-language model is built on a hybrid architecture that integrates a linear attention mechanism with a sparse mixture-of-experts model, achieving higher inference efficiency. It delivers state-of-the-art performance comparable to leading-edge models across a wide range of tasks, including language understanding, logical reasoning, code generation, agent-based tasks, image understanding, video understanding, and graphical user interface (GUI) interactions. With its robust code-generation and agent capabilities, the model exhibits strong generalization across diverse agent.
Overview
The Qwen3.5 series 397B-A17B native vision-language model is built on a hybrid architecture that integrates a linear attention mechanism with a sparse mixture-of-experts model, achieving higher inference efficiency. It delivers state-of-the-art performance comparable to leading-edge models across a wide range of tasks, including language understanding, logical reasoning, code generation, agent-based tasks, image understanding, video understanding, and graphical user interface (GUI) interactions. With its robust code-generation and agent capabilities, the model exhibits strong generalization across diverse agent.
Access: available through the official Qwen API. Context window: 262K.
Specifications
| API identifier | qwen/qwen3.5-397b-a17b |
| Provider | Qwen |
| Model type | Multimodal LLM |
| Context window | 262K catalog |
| Input modalities | text · image · video |
| Output modalities | text |
| Released | Feb 16, 2026 |
| Tokenizer | Qwen3 |
| Moderated | No |
| Architecture modality | text+image+video->text |
API defaults
{
"top_k": 20,
"top_p": 0.95,
"temperature": 0.6,
"presence_penalty": null,
"frequency_penalty": null,
"repetition_penalty": null
}Pricing
Live pricing components for qwen/qwen3.5-397b-a17b as published in the catalog.
| Pricing component | Raw unit price | Normalized | Unit |
|---|---|---|---|
| Prompt tokens | $3.9e-7 | $0.39 / 1M | Per input token |
| Completion tokens | $0.00000234 | $2.34 / 1M | Per output token |
| Request fee | N/A | N/A | Per request |
| Image fee | N/A | N/A | Per image unit |
| Web search fee | N/A | N/A | Per search request |
Cost calculator
Estimate monthly spend from your own token volumes.
Estimated Total Cost
$0.66Calculated from current list pricing in the ModelsAtlas catalog.Capabilities
| Capability | Status | What it means |
|---|---|---|
| Visual Understanding | ✓ Supported | Image and document analysis support |
| Audio Processing | Not advertised | Speech and voice aligned flows |
| Tool Calling | ✓ Supported | Supports tools / function calling |
| Self-Hosting | ✓ Supported | Deploy outside managed APIs |
Capability signals
Directional signals derived from model metadata and capability tags — not official benchmark submissions.
Quick start
Call Qwen: Qwen3.5 397B A17B through an OpenAI-compatible client.
from openai import OpenAI
client = OpenAI(
base_url="https://openrouter.ai/api/v1",
api_key="YOUR_API_KEY"
)
response = client.chat.completions.create(
model="qwen/qwen3.5-397b-a17b",
messages=[{"role": "user", "content": "Explain quantum physics."}]
)
print(response.choices[0].message.content)Alternatives
Closest models by context window from a different provider.
| Model | Provider | Context | Input /1M | Actions |
|---|---|---|---|---|
| ByteDance Seed: Seed 1.6 | Bytedance Seed | 262K | $0.25 | View → |
| ByteDance Seed: Seed 1.6 Flash | Bytedance Seed | 262K | $0.07 | View → |
Sources & attribution
Pricing and metadata are maintained in the ModelsAtlas catalog.
Frequently asked questions
How much does Qwen: Qwen3.5 397B A17B cost?
$0.39 per 1M input tokens and $2.34 per 1M output tokens on the official Qwen API.
What is the context window of Qwen: Qwen3.5 397B A17B?
Qwen: Qwen3.5 397B A17B supports up to 262K tokens of context.
Does Qwen: Qwen3.5 397B A17B support tool / function calling?
Yes, Qwen: Qwen3.5 397B A17B supports tool / function calling — you can register tools and the model will emit structured tool calls.
How do I access Qwen: Qwen3.5 397B A17B?
Use the official Qwen API with the model id `qwen/qwen3.5-397b-a17b`. See the Quick start section above for code examples.