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Favicon for qwen

Qwen: Qwen3.5 397B A17B

qwen/qwen3.5-397b-a17b

Model weights
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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

$0.39 / $2.34per 1M

Context

262K

Released

Feb 16, 2026

Compare
ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQExplore

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.

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$0.60$3.60------
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Throughput

54tok/s

P50, best across providers

Latency

0.53s

P50, best provider

AutoExacto Benchmarks
GPQA DiamondTAU-Bench
StreamLake
87.2%--
DeepInfra
87.2%--
NovitaAI
85.5%--
Phala
87.8%77.2%
Alibaba Cloud Int.
86.7%77.2%
+6 more providers
Uptime (3d)

100.00%

Availability (3d)

97.99%

Availability over the last 3 days

Last 72 hours
Availability 97.99%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
95.13%
Without Routing
84.43%

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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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 Alibaba Cloud Int., DeepInfra, Parasail, DigitalOcean, AtlasCloud, Phala, NovitaAI, GMICloud 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 and a maximum output of 65,536 tokens.

On OpenRouter, Qwen: Qwen3.5 397B A17B costs $0.39/M input tokens and $2.34/M output tokens. 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 $0.39/M input tokens and $2.34/M output tokens.

Qwen3.5 397B A17B has a 262,144 token context window. It supports up to 65,536 completion tokens.

Yes. Qwen3.5 397B A17B accepts tools and tool_choice for function calling. It supports response_format for JSON output, without JSON-schema enforcement.

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: Alibaba Cloud Int., DeepInfra, Parasail, DigitalOcean, AtlasCloud, Phala, NovitaAI, GMICloud 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.