UltraGPT
Qwen: Qwen3.5-Flash
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...
Intelligence overview
1M tok
Context window
65.5K tok
Max output
What Qwen: Qwen3.5-Flash can do.
Reasoning
Extended reasoning
Works through problems step by step before answering, trading latency for accuracy on harder tasks.
Multimodal
Image understanding
Reads and reasons over images alongside text in the same prompt.
Video input
Takes video as an input modality alongside text and images.
Development
Tool calling
Calls external functions mid-response, then continues reasoning from the result.
Structured output
Returns responses constrained to a JSON schema, ready to parse without cleanup.
Streaming
Streams tokens as they're generated instead of waiting on the full response.
Pay for what you use.
Every model in UltraGPT runs behind one flat subscription — this is the underlying per-token cost the catalog tracks.
$0.065 / 1M tok
$0.26 / 1M tok
Built for serious work.
Build
Generate and refactor code, with the ability to run and verify tool calls and return structured, parseable output.
Think
Works through multi-step problems with extended reasoning before it answers.
Research
Holds up to 1M tokens of source material in context without losing the thread.
Create
Reads images alongside a prompt to ground creative and design work in what's actually on screen.
Automate
Chains tool calls across multi-step workflows, reasoning between each one.
Ask Qwen: Qwen3.5-Flash anything.
A preview of the real UltraGPT composer — the model you see here is the model you get.
Continues in the UltraGPT app — one login, every model.
How Qwen: Qwen3.5-Flash stacks up.
The closest models in the catalog by provider, capability and score — real entries, pulled from the same directory.
Technical details.
Specification
- Context window
- 1M tokens
- Max output
- 65.5K tokens
- Input modalities
- Text + Image + Video
- Output modalities
- Text
- Release date
- Feb 25, 2026
- Streaming
- Supported
- Tool calling
- Supported
- JSON mode
- Supported
More from Qwen, and everything else.
This model is one entry in the full UltraGPT catalog — browse the rest, compare pricing and context windows, or filter by capability.