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  1. Models
  2. Text
  3. Qwen

Qwen3.5 Flash Thinking

Qwen3.5 Flash with extended reasoning enabled. The fastest and cheapest native Qwen 3.5 vision-language model.

  • Reasoning
  • Vision
  • Video Input

Added Feb 24, 2026

Pricing

Auto routing · per 1M tokens
Input
$0.10
Output
$0.40
Compare provider prices

Specifications

Context window
991.8K
Max output
65.5K
Avg output (7d)
1K tokens
Longer than 71% of models

Benchmarks

Sourced from Vectara.

Hallucination Rate

10.5%

Hallucination Rate: 10.5
Better than 41% of models compared

Factual Consistency

89.5%

Factual Consistency: 89.5
Better than 41% of models compared

Answer Rate

99.8%

Answer Rate: 99.8
Better than 64% of models compared

Avg Summary Length

Average generated summary length

95.0

Last updated 2026-10-22 · Matched as qwen/qwen3.5-flash-2026-02-23

Vectara Leaderboard

Providers

Provider information for this model’s automatic routing. These routes cannot be selected individually.

Choose or restrict providers with the API. Provider-selection prices include the selection markup. Provider selection guide · Pricing API (JSON, USD per 1K tokens)

Auto
Auto
Recommended
$0.10$0.40N/AN/AN/A
Alibaba
Alibaba
SG
$0.10$0.40N/AN/AN/A
Privacy:No training on prompts

Related text models

Compare Qwen3.5 Flash Thinking with similar models from the same provider or model family.

Qwen3.8 Omni Flash

qwen/qwen3.8-omni-flash

Qwen3.8 Omni Flash is a fast omni-modal reasoning model for understanding text, images, audio, and video. It is especially suited to meeting summaries, transcripts and subtitles, speaker-aware audiovisual analysis, and long-form content review. It returns text and supports a nearly one-million-token context window, tool calling, and structured output.

Qwen3.8 Flash

qwen/qwen3.8-flash

Qwen3.8 Flash is Alibaba's latest fast multimodal model, with a million-token context window for coding, agentic workflows, visual understanding, long documents, codebases, and videos.

Qwen3.7 Flash

qwen/qwen3.7-flash

Qwen3.7 Flash is Qwen's fast multimodal model for coding, search and computer-use agents, visual understanding, object recognition, spatial reasoning, and stable end-to-end task execution.

Qwen3.7 Flash Thinking

qwen/qwen3.7-flash:thinking

Qwen3.7 Flash with thinking enabled for deeper multimodal reasoning, coding, search and computer-use agents, spatial reasoning, and multi-step task execution.

Qwen3.6 Flash

qwen/qwen3.6-flash

Qwen3.6 Flash is Alibaba's fast native vision-language model in the Qwen 3.6 family. It improves over 3.5 Flash with stronger coding/agent performance and better spatial intelligence, including object localization and detection.

Qwen3.5 Omni Flash

qwen/qwen3.5-omni-flash

Qwen3.5 Omni Flash is Qwen's fast multimodal model. We verified live support for text prompts, images, audio files, and direct video URLs on Alibaba's chat-completions-compatible API. Alibaba describes Flash as a fully evolved version of Qwen3 Omni with audio input support across 60+ languages.