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Favicon for qwen

Qwen: Qwen3.5-27B

qwen/qwen3.5-27b

Model weights
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The Qwen3.5 27B native vision-language Dense model incorporates a linear attention mechanism, delivering fast response times while balancing inference speed and performance. Its overall capabilities are comparable to those of the Qwen3.5-122B-A10B.

Modalities

In / Out Price

$0.195 / $1.56per 1M

Context

262K

Released

Feb 25, 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: Qwen3.5-27B

OpenRouter makes Qwen: Qwen3.5-27B available through a unified, OpenAI-compatible API using the model ID qwen/qwen3.5-27b. Requests can be routed across 6 providers, including Alibaba Cloud Int., SiliconFlow, DeepInfra, AtlasCloud, NovitaAI and Phala, with automatic failover when an endpoint is unavailable.

Qwen: Qwen3.5-27B 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: Qwen3.5-27B costs $0.195/M input tokens and $1.56/M output tokens. It was released on February 25, 2026.

More models from Qwen

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

Frequently asked questions

The Qwen3.5 27B native vision-language Dense model incorporates a linear attention mechanism, delivering fast response times while balancing inference speed and performance. Its overall capabilities are comparable to those of the Qwen3.5-122B-A10B.

Qwen3.5-27B costs $0.195/M input tokens and $1.56/M output tokens.

Qwen3.5-27B has a 262,144 token context window. It supports up to 65,536 completion tokens.

Yes. Qwen3.5-27B accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

Qwen3.5-27B accepts text, images and video as input and returns text.

Qwen3.5-27B is served by 6 providers on OpenRouter: Alibaba Cloud Int., SiliconFlow, DeepInfra, AtlasCloud, NovitaAI and Phala. Requests are routed to the best available provider, with automatic failover to the others, and you can pin or exclude providers with provider routing.

Qwen3.5-27B was released on February 25, 2026.

$0.195$1.56--1.16s23 tps
98.71%
$0.25$2.00--1.39s10 tps
99.00%
$0.26$2.60--0.36s40 tps
96.52%
$0.27$2.16$0.270.86s19 tps
98.87%
$0.30$2.40--1.18s12 tps
99.87%
$0.30$2.40$0.151.59s21 tps
94.79%

Throughput

40tok/s

P50, best across providers

Latency

0.35s

P50, best provider

Uptime (3d)

100.00%

Availability (3d)

99.72%

Availability over the last 3 days

Last 72 hours
Availability 99.72%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
99.52%
Without Routing
95.46%

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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