Qwen3.5-397B-A17B

apache-2.0397B / 17B

Qwen3.5-397B-A17B is Alibaba's most capable Qwen3.5 model, a Mixture-of-Experts architecture with 397B total parameters and 17B activated per token. It features a 262K token context window (extensible to 1M with YaRN), thinking/reasoning mode, tool calling with MCP integration, and support for 201 languages. Sets state-of-the-art results on reasoning, coding, math, and multimodal benchmarks.

Context
262K
Max output
64K
Input price
$0.45/1M tokens
Output price
$3/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing
Fine-tuning

Details

Model IDQwen/Qwen3.5-397B-A17B
Provider DeepInfra
Familyqwen3
Licenseapache-2.0
Statusactive
Typechat
Input modalitiestext, image
Output modalitiestext
Open weightYes
Parameters397B / 17B
Architecture—
Context window262K tokens
Max input—
Max output64K tokens
Reasoning tokensYes
Knowledge cutoff—
Release date—
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.deepinfra.com/v1/openai/v1/chat/completions

Pricing

Input
$0.45
Output
$3
Cache write
—
Cache read
$0.22
Batch in
—
Batch out
—

Family Comparison: qwen3

ModelContextMax outPricing
Qwen3-Embedding-0.6B-batch———
Qwen3-Embedding-0.6B———
Qwen3-Embedding-4B-batch———
Qwen3-Embedding-4B———
Qwen3-Embedding-8B-batch———
Qwen3-Embedding-8B———
Qwen3-Reranker-0.6B———
Qwen3-Reranker-4B———
Qwen3-Reranker-8B———
Qwen3-TTS-VoiceDesign———
Qwen3-TTS———
Qwen3.5-0.8B262K—$0.01$0.05
Qwen3.5-2B262K—$0.02$0.1
Qwen3.5-4B262K—$0.03$0.15
Qwen3-32B41K—$0.08$0.28
Qwen3-235B-A22B-Instruct-2507262K—$0.09$0.55
Qwen3-Next-80B-A3B-Instruct262K—$0.09$1.1
Qwen3.6-35B-A3B262K—$0.1$0.95
Qwen3-14B41K—$0.12$0.24
Qwen3-30B-A3B41K—$0.12$0.5
Qwen3.5-35B-A3B262K—$0.14$1
Qwen3-VL-30B-A3B-Instruct262K—$0.15$0.6
Qwen3-VL-235B-A22B-Instruct262K—$0.2$0.88
Qwen3-235B-A22B-Thinking-2507262K—$0.23$2.3
Qwen3.5-27B262K—$0.26$2.6
Qwen3.5-122B-A10B262K—$0.29$2.4
Qwen3-Coder-480B-A35B-Instruct-Turbo262K—$0.3$1
Qwen3.5-397B-A17B262K—$0.45$3
Qwen3-Max-Thinking256K—$1.2$6
Qwen3-Max256K—$1.2$6

API

GET/v1/models/deepinfra/Qwen/Qwen3.5-397B-A17B