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Favicon for qwen

Qwen: Qwen3.5 397B A17B

qwen/qwen3.5-397b-a17b

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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.

Modalities

In / Out Price

$0.3025 / $1.925per 1M

Context

262K

Released

Feb 16, 2026

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ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQ

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick — Balanced (price + speed), Nitro (fastest), or Exacto (highest tool-calling accuracy).

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Benchmarks

Scores on standardized evaluations. Higher percentages are better — and rank percentile shows where this model lands among all models on OpenRouter.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Activity

Token volume and request traffic to this model over time.

Quick Start

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

About Qwen: Qwen3.5 397B A17B

OpenRouter makes Qwen: Qwen3.5 397B A17B available through a unified, OpenAI-compatible API using the model ID qwen/qwen3.5-397b-a17b. Requests can be routed across 10 providers, including DigitalOcean, Alibaba Cloud Int., DeepInfra, Parasail, AtlasCloud, Phala, NovitaAI, StreamLake and 2 more, with automatic failover when an endpoint is unavailable.

Qwen: Qwen3.5 397B A17B accepts text, images and video and returns text. It has a 262,144-token context window.

On OpenRouter, Qwen: Qwen3.5 397B A17B costs $0.3025/M input tokens and $1.925/M output tokens, with separate rates for Cache Read at $0.111/M tokens. Effective pricing can be lower when prompt caching applies. It was released on February 16, 2026.

More models from Qwen

  • Qwen3.8 27B
  • Qwen3 Reranker 8B
  • Qwen3 ASR 1.7B

Frequently asked questions

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.

Qwen3.5 397B A17B costs $0.3025/M input tokens and $1.925/M output tokens, with separate rates for Cache Read at $0.111/M tokens.

Qwen3.5 397B A17B has a 262,144 token context window.

Yes. Qwen3.5 397B A17B accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

Qwen3.5 397B A17B accepts text, images and video as input and returns text.

Qwen3.5 397B A17B is served by 10 providers on OpenRouter: DigitalOcean, Alibaba Cloud Int., DeepInfra, Parasail, AtlasCloud, Phala, NovitaAI, StreamLake and 2 more. Requests are routed to the best available provider, with automatic failover to the others, and you can pin or exclude providers with provider routing.

Qwen3.5 397B A17B was released on February 16, 2026.

$0.39$2.34--1.85s53 tps
99.17%
$0.45$3.00$0.220.41s27 tps
96.76%
$0.50$3.60$0.301.06s44 tps
99.92%
$0.55$3.50$0.2251.15s37 tps
98.45%
$0.60$3.60--1.29s38 tps
98.11%
$0.60$3.60$0.122.23s59 tps
98.72%
$0.75$4.50--1.49s50 tps
97.77%
$0.3025$1.925$0.1111.10s7 tps
97.13%
$0.55$3.50$0.551.25s12 tps
96.63%
$0.60$3.60------
0.00%

Throughput

59tok/s

P50, best across providers

Latency

0.41s

P50, best provider

AutoExacto Benchmarks
GPQA DiamondTAU-Bench
StreamLake
87.3%--
Phala
87.6%77.2%
Alibaba Cloud Int.
86.9%76.9%
Parasail
87.6%74.5%
AtlasCloud
85.7%76.1%
+6 more providers
Uptime (3d)

100.00%

Availability (3d)

98.70%

Availability over the last 3 days

Last 72 hours
Availability 98.70%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
98.67%
Without Routing
89.74%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and customization options.

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