Question 1

What does this Qwen3.5 Plus vs Fugu Ultra comparison cover?

Accepted Answer

It brings together documented inputs and outputs, token limits, deployment terms and available pricing. When both models have source-linked, verified results on a shared benchmark, those results are shown with their individual sources. The comparison is a starting point for evaluating your own workload.

Question 2

Which is cheaper: Qwen3.5 Plus or Fugu Ultra?

Accepted Answer

Qwen3.5 Plus lists $0.40 input and $2.40 output per 1M tokens. Fugu Ultra lists $5.00 input and $30.00 output. The cheaper workload depends on the mix of input and output. Long-context tiers, caching, batch processing and retries can change the bill.

Question 3

Which has the larger context window: Qwen3.5 Plus or Fugu Ultra?

Accepted Answer

Both records list a 1M-token context window. An equal limit does not imply equal recall, instruction following, or long-context quality.

Question 4

Which is faster: Qwen3.5 Plus or Fugu Ultra?

Accepted Answer

There is no matched speed measurement for both models with the same source, host, region and date. Test the same prompts at your expected concurrency and measure time to the first useful response as well as complete task time.

Question 5

What input and output types do Qwen3.5 Plus and Fugu Ultra support?

Accepted Answer

Qwen3.5 Plus records text, image, video input and text output. Fugu Ultra records text, image input and text output. “Not documented” means the current source record is incomplete; it does not prove that a modality is unsupported.

Question 6

Should I choose Qwen3.5 Plus or Fugu Ultra?

Accepted Answer

Consider Qwen3.5 Plus if you need a lower listed input rate or a lower listed output rate. Test both on the same representative examples and judge the output against your acceptance criteria. Include tool failures, retries and the time to a completed task.

Specification	Qwen3.5 Plus	Fugu Ultra
Provider	Alibaba	Sakana AI
Listed pricing route	Alibaba	Sakana AI
Model family	qwen	fugu
Accepted inputs	text, image, video	text, image
Produced outputs	text	text
Context window	1M	1M
Max output	65.54K	—
Input price / 1M	$0.40Lower	$5.00
Output price / 1M	$2.40Lower	$30.00
Reasoning mode	Documented	Documented
Tool calling	Documented	Documented
Image input	Documented	Documented
Audio input	Not documented	Not documented
Structured output	Not documented	Documented
License	Proprietary	Proprietary

Qwen3.5 Plus vs Fugu Ultra

Qwen3.5 Plus

Fugu Ultra

Key differences

Pricing, limits and capabilities

Which model should you choose?

Documentation and model profiles

Questions people ask

Compare a different pair