How much does Qwen 3.5 Plus (hosted 397B-A17B) cost?

We do not hold a list price for Qwen 3.5 Plus (hosted 397B-A17B) yet, so we cannot compare its cost. Check the maker's own price page.

Is Qwen 3.5 Plus (hosted 397B-A17B) open source?

We list Qwen 3.5 Plus (hosted 397B-A17B) as closed: it is used through its maker's apps or API and its weights are not published (Epoch AI lists its access as "Unknown").

How good is Qwen 3.5 Plus (hosted 397B-A17B) compared with other AI models?

On the Epoch Capabilities Index, Qwen 3.5 Plus (hosted 397B-A17B) scores 146.2 (likely range 143.5 to 147.9), which ranks 80 of 270 models we track. Scores close together are a tie in practice.

How does Qwen 3.5 Plus (hosted 397B-A17B) compare with DeepSeek-V4-Flash?

On quality, neither model leads clearly across the 1 measure both have. 1 measure is too close to call. See the full comparison for every measure.

How current are these numbers for Qwen 3.5 Plus (hosted 397B-A17B)?

The newest data on this page is dated 26 Oct 2026. Scores come from Epoch AI and Arena, prices from the open LiteLLM price list.

AI Rankings

Qwen 3.5 Plus (hosted 397B-A17B): Score, Price and Context Window

Where Qwen 3.5 Plus (hosted 397B-A17B) from Alibaba ranks, what it costs and how much text it can read, in plain numbers with the sources.

Data updated 26 Oct 2026

Alibaba
Closed weights
Released Feb 2026

Its score range overlaps with Qwen3.6 27B, the model just above it, so a small gap in rank is not a meaningful difference.

Key facts

Overall score: 146.2; Rank 80 of 270. Likely range 143.5 to 147.9.
Weights: Closed; Used through the maker's apps or API (Epoch AI: Unknown).

We do not have an Arena human-vote rating, a list price and a context window size for Qwen 3.5 Plus (hosted 397B-A17B) yet. It is shown as "Not measured" rather than guessed.

Try itQwen Studio in our AI tools directoryQwen assistant for chat, document processing, multimodal questions, web search, and creative tasks.

How Qwen 3.5 Plus (hosted 397B-A17B) stacks up

Each strip shows every model we track as faint bars. The dot is this model. Better is always to the right, even for price.

Qwen 3.5 Plus (hosted 397B-A17B) compared with all models we trackOverall capability: 146.2. Better than 70% of the other 269 models.

Overall capability146.2
Better than 70% of the other 269 modelsUpper half
Epoch Capabilities Index: one score that combines many tests.

Compared with the other published models that have each measure. Data updated 26 Oct 2026.

Where Qwen 3.5 Plus (hosted 397B-A17B) ranks

Leaderboards it appears on, best placing first.

See all leaderboards

Test results

Each test checks one kind of skill. Place shows where it stands among the models that took that test.

GPQA Diamond
Very hard multiple-choice science questions in biology, physics and chemistry, written by experts and designed so a quick web search does not give the answer.
84.8%
Place 70 of 183
tied with 1 other
OTIS Mock AIME
Maths competition problems in the style of the US AIME exam, from the 2024 and 2025 sets. Every answer is a whole number.
86.7%
Place 67 of 174
tied with 5 others
SimpleQA Verified
Short factual questions that each have one correct answer. It measures how often a model gets facts right.
25.4%
Place 66 of 82

Similar models

Models from other makers with a similar overall score.

Learn more

Questions about Qwen 3.5 Plus (hosted 397B-A17B)

How much does Qwen 3.5 Plus (hosted 397B-A17B) cost?: We do not hold a list price for Qwen 3.5 Plus (hosted 397B-A17B) yet, so we cannot compare its cost. Check the maker's own price page.
Is Qwen 3.5 Plus (hosted 397B-A17B) open source?: We list Qwen 3.5 Plus (hosted 397B-A17B) as closed: it is used through its maker's apps or API and its weights are not published (Epoch AI lists its access as "Unknown").
How good is Qwen 3.5 Plus (hosted 397B-A17B) compared with other AI models?: On the Epoch Capabilities Index, Qwen 3.5 Plus (hosted 397B-A17B) scores 146.2 (likely range 143.5 to 147.9), which ranks 80 of 270 models we track. Scores close together are a tie in practice.
How does Qwen 3.5 Plus (hosted 397B-A17B) compare with DeepSeek-V4-Flash?: On quality, neither model leads clearly across the 1 measure both have. 1 measure is too close to call. See the full comparison for every measure.
How current are these numbers for Qwen 3.5 Plus (hosted 397B-A17B)?: The newest data on this page is dated 26 Oct 2026. Scores come from Epoch AI and Arena, prices from the open LiteLLM price list.

Where this data comes from

Epoch AI: Benchmark data: Epoch AI, 'Capabilities & benchmarking', epoch.ai/benchmarks (CC BY 4.0). We match models across sources, rank them and show them in charts. Scores are not changed. Epoch AI does not endorse this site.

Newest data on this page: 26 Oct 2026. Prices are list prices and change often, so confirm on the maker's site before you buy. Sponsors never change a score or an order. How we calculate this · Report a mistake