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Alibaba

Qwen3.5-9B

Benchmarks, price, context and versions

Also searched as

Qwen3.5 9B

Direct answer: Qwen3.5-9B is a model from Alibaba. 79% on GPQA Diamond, per Epoch AI. On OpenRouter, US$ 0.052 per 1 million input tokens and US$ 0.077 per 1 million output tokens.

✓ Good for

  • high-volume use (input price in the cheapest 25% on OpenRouter)
  • running on your own infrastructure (open weights)

✕ Not the best for

  • calculation and problems with an exact answer (#113 of 186 on OTIS Mock AIME)
  • technical reasoning as the model appears through the API (#87 of 135 on GPQA Diamond (OpenRouter))

This block follows a rule of this section, using source data: if the model is in the top 25% of the metric, the item goes under "Good for"; if it is in the bottom half, it goes under "Not the best for". The middle band appears in neither. Price and context use OpenRouter; scores use Epoch AI or OpenRouter Benchmarks, in the latest version we checked.

Benchmarks

GPQA Diamond

?what it is
79%

highest score on this metric 96.4%

92º / 198 · Epoch AI, latest version we checked

OTIS Mock AIME

?
61.7%

highest score on this metric 100%

113º / 186 · Epoch AI, latest version we checked

GPQA Diamond (OpenRouter)

?
81%

highest score on this metric 96.5%

87º / 135 · OpenRouter Benchmarks, latest version we checked

τ-bench Verified (airline)

?
75.7%

highest score on this metric 82%

46º / 131 · OpenRouter Benchmarks, latest version we checked

Key specs

Origin
China
Family
Qwen provisional data
Weights?
open
License
apache-2.0
Input US$/1M?
US$ 0.052
Output US$/1M
US$ 0.077
Context?
262,144 tokens
Parameters
9,653,104,368
Input
image, text, video
OpenRouter usage?
no data
Downloads (30 days)?
6,370,574
Use cases provisional data
Text Agents
Dates in sources
  • 2026, published, per Epoch AI
  • 2026, listed on OpenRouter
  • 2026, Hugging Face repo created

Version history

Dates come from the sources: OpenRouter listing or Hugging Face repo creation, which may differ from the official launch.

FAQ

What is Qwen3.5-9B?

Qwen3.5-9B is a model from Alibaba, with open weights, used for text, agents.

How much does Qwen3.5-9B cost?

On OpenRouter, US$ 0.052 per 1 million input tokens and US$ 0.077 per 1 million output tokens.

What is the context window of Qwen3.5-9B?

262,144 tokens, per OpenRouter.

Is Qwen3.5-9B open source?

Yes, it has open weights. License: apache-2.0.

What is Qwen3.5-9B's GPQA Diamond score?

79% on GPQA Diamond, per Epoch AI.

Is Qwen3.5-9B good for coding?

No data: there is no SWE-bench Verified measurement for it in open sources.

Who made Qwen3.5-9B?

It was made by Alibaba, a lab from China.

provisional data Questions under review: Semrush had no API balance during collection. Answers use source data only.

Models from Alibaba

See lab

Sources

  • Epoch AI, CC BY 4.0, latest version we checked.
  • Hugging Face Hub, metadados públicos do Hub; licença de cada modelo no repositório, latest version we checked.
  • OpenRouter, dados públicos da API; exports de benchmarks e rankings em CC BY 4.0, latest version we checked.
  • OpenRouter Benchmarks, CC BY 4.0, latest version we checked.

Dates come from the sources: OpenRouter listing or Hugging Face repo creation, which may differ from the official launch. Family and version were grouped by rule from the name.