Qwen3.5 Omni Flash vs Qwen3.5 Omni Plus

Qwen3.5 Omni Flash and Qwen3.5 Omni Plus side by side: specs, capabilities, parameters, and live pricing from the EmpirioLabs catalog.

Alibaba Cloud Text Generation

Qwen3.5 Omni Flash vs Qwen3.5 Omni Plus at a glance

Qwen3.5 Omni Flash and Qwen3.5 Omni Plus are both Alibaba Cloud models in the Text Generation category, available through the EmpirioLabs API.

Key differences

  • Both models were released on Mar 30, 2026.
  • Both models have a context window of 192K tokens.
  • Qwen3.5 Omni Flash lists the lower rate for Input: audio (per 1M audio input tokens) and Input (per 1M prompt tokens).

Qwen3.5 Omni Flash vs Qwen3.5 Omni Plus: specs

SpecQwen3.5 Omni FlashQwen3.5 Omni Plus
Model IDqwen3-5-omni-flashqwen3-5-omni-plus
AuthorAlibaba CloudAlibaba Cloud
ReleasedMar 30, 2026Mar 30, 2026
Context window192K tokens192K tokens
Max output32,768 tokens32,768 tokens
Input
Text Image Video Audio
Text Image Video Audio
Output
Text Audio
Text Audio
Structured outputNot supportedJSON Schema
RegionSingaporeSingapore
Endpoints
POST /v1/chat/completions POST /v1/responses POST /v1/messages POST /v1/audio/speech POST /v1beta/models/qwen3-5-omni-flash:generateContent POST /v1/audio/speech:stream
POST /v1/chat/completions POST /v1/responses POST /v1/messages POST /v1/audio/speech POST /v1beta/models/qwen3-5-omni-plus:generateContent POST /v1/audio/speech:stream
Capabilities
vision audio in audio out multilingual function calling web search
vision audio in audio out multilingual function calling web search

Qwen3.5 Omni Flash vs Qwen3.5 Omni Plus: API pricing

Live rates from the EmpirioLabs catalog for both models. Each rate card always matches what the API charges.

Qwen3.5 Omni Flash vs Qwen3.5 Omni Plus: API parameters

Request parameters each model lists on EmpirioLabs, with the allowed values or range where one applies. A dash marks a parameter the model does not list.

ParameterQwen3.5 Omni FlashQwen3.5 Omni Plus
temperature0 to 1.99 Default: 0.70 to 1.99 Default: 0.7
top_p0 to 1 Default: 0.90 to 1 Default: 0.9
max_tokens1 to 32768 Default: 40961 to 32768 Default: 4096
output_modetext, text_audio Default: texttext, text_audio Default: text
voicestring Default: Tinastring Default: Tina
vl_high_resolution_imagesbooleanboolean
max_pixels4096 to 16777216 Default: 26214404096 to 16777216 Default: 2621440
video_fps0.1 to 10 Default: 20.1 to 10 Default: 2
tool_web_searchboolean Default: falseboolean Default: false
response_format-enum

Qwen3.5 Omni Flash vs Qwen3.5 Omni Plus: limits and notes

Qwen3.5 Omni Flash

Audio billing

  • Audio is billed at a higher token rate than text/image/video
  • When audio output is enabled, output text is NOT charged, only audio tokens

Voice and language

  • 55 voice timbres available
  • Audio output supports 29 languages, 7 dialects

Qwen3.5 Omni Plus

Audio billing

  • Audio is billed at a higher token rate than text/image/video
  • When audio output is enabled, output text is NOT charged, only audio tokens

Voice and language

  • 55 voice timbres available
  • Audio output supports 29 languages, 7 dialects

How to call Qwen3.5 Omni Flash and Qwen3.5 Omni Plus

Qwen3.5 Omni Flash serves the OpenAI-compatible Chat Completions API. Point any OpenAI SDK at https://api.empiriolabs.ai/v1 with your EmpirioLabs API key and use the model id qwen3-5-omni-flash. Both models are called through the same endpoint. Set model to qwen3-5-omni-flash or qwen3-5-omni-plus. Get an API key from the EmpirioLabs dashboard.

cURL
curl https://api.empiriolabs.ai/v1/chat/completions \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen3-5-omni-flash",
    "messages": [
      {"role": "user", "content": "Write a haiku about the ocean."}
    ]
  }'

Qwen3.5 Omni Flash vs Qwen3.5 Omni Plus: common questions

What is the difference between Qwen3.5 Omni Flash and Qwen3.5 Omni Plus?

Both models were released on Mar 30, 2026. Both models have a context window of 192K tokens. Qwen3.5 Omni Flash lists the lower rate for Input: audio (per 1M audio input tokens) and Input (per 1M prompt tokens). The specs, rate cards, and parameters on this page come from the live EmpirioLabs catalog.

Which has the lower rate, Qwen3.5 Omni Flash or Qwen3.5 Omni Plus?

Qwen3.5 Omni Flash lists the lower rate for Input: audio (per 1M audio input tokens) and Input (per 1M prompt tokens). Both live rate cards are on this page and always match what the API charges.

Can I switch between Qwen3.5 Omni Flash and Qwen3.5 Omni Plus without rebuilding my integration?

Yes. Both models use POST /v1/chat/completions with the same EmpirioLabs API key, so most integrations switch by changing the model value. Check the parameters table on this page first if you rely on a model-specific parameter.

Can I try Qwen3.5 Omni Flash and Qwen3.5 Omni Plus in the browser before integrating?

Yes. Open each model in the EmpirioLabs playground and run the same prompt on both, with the parameters the API exposes.

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