Qwen3.5 397B A17B is Alibaba's language model with a 262K context window and up to 66K output tokens, available from 4 providers, starting at $0.390 / 1M input and $2.34 / 1M output. Alibaba's largest Qwen3.5 MoE model with 397B total parameters and 17B activated per token, targeting maximum capability for complex reasoning and generation.
Specifications
Canonical IDalibaba-qwen3-5-397b-a17b
TypeLanguage
StatusActive
CreatorAlibabaAlibaba
Providers
Context Window262K tokens
Max Output66K tokens
Input ModalitiesImageTextVideo
Output ModalitiesText
Reasoning Effortsdefault
Parameters397B
HuggingFace Likes1,462
HuggingFace Downloads (30d)710,153
HuggingFace Downloads (all-time)2,631,436
Release Date · 3 months ago
Benchmarks
Intelligence Index
45.0
#34
Coding Index
41.3
#33
GPQA
0.9
#14
HLE
0.3
#27
IFBench
0.8
#8
Time to First Token
2.02s
#415
SciCode
0.4
#58
LCR
0.7
#46
TerminalBench Hard
0.4
#28
TAU2
1.0
#17
Output TPS
51.9
#206

Capabilities

Input3/5
Text
Image
Audio·
Video
PDF·
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities5/13
Reasoning
Adaptive Reasoning·
Function Calling
Parallel Function Calling
Structured Outputs
Native JSON Schema
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

ProviderStandardBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
OpenRouter logo
OpenRouter
qwen/qwen3.5-397b-a17b
$0.390$2.34$0.195
Alibaba Qwen logo
Alibaba Qwen
qwen3.5-397b-a17b
$0.600$3.60N/A$0.300$1.80
Hugging Face logo
Hugging Face
together_ai:Qwen/Qwen3.5-397B-A17B
$0.600$3.60N/A
Together AI logo
Together AI
together_ai/Qwen/Qwen3.5-397B-A17B
$0.600$3.60N/A

Cost Calculator

Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Qwen3.5 122B A10B262K$0.260$2.08Available
Qwen3.5 35B A3B262K$0.140$1.00Available
Qwen3.5 397B A17B262K$0.390$2.34Current

Model IDs