Qwen

Qwen3.5-Flash

qwen/qwen3.5-flash-02-23
Released Feb 25, 2026Open Weights
ThinkingToolsVisionopen weights

The Qwen3.5 native vision-language Flash models are built on a hybrid architecture that integrates a linear attention mechanism with a sparse mixture-of-experts model, achieving higher inference efficiency. Compared to the...

Cost / 1M tokens

Very low usage

$0.065

input

—

cached input

$0.26

output

Context Window

1M

Up to 66K max output

Modalities

text, image, video → text

Qwen3 tokenizer

Quickstart & API

qwen/qwen3.5-flash-02-23
Open the model picker in ChatOSS Desktop (Code, Kanban, or Chat) and select or paste this model ID.

Best for & Strengths

Key Strengths

Open weightsExtended reasoningTool & agent callingMultimodal vision

Recommended Workloads in ChatOSS

  • Coding agents
  • Complex reasoning & debugging
  • Screenshot-to-code workflows
Available in ChatOSS Code, Kanban Orchestrate, and Chat modes via Plus, Max, or BYOK.

Active Provider Endpoints (1)

Upstream inference providers serving Qwen3.5-Flash, with per-provider pricing, context limits, quantization, and 24-hour uptime.

ProviderInput / 1MOutput / 1MCache Read / 1MContextMax OutputQuantizationUptime (24h)
Alibaba
alibaba
$0.065$0.26—1M66K—100.0%

Supported API Parameters

Parameters accepted by this model when called through ChatOSS or OpenRouter.

frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_p

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