> Qwen3.5-35B-A3B is an open-weights AI model from Alibaba, released 24 Feb 2026. Index score 137 (GPT-4 = 100), rank 99 of 229 ranked models. API price $0.16 in / $1.3 out per million tokens, 262K context.

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# Qwen3.5-35B-A3B

Alibaba

Released 24 Feb 2026

Open

[Compare](https://themodelindex.org/compare/qwen3-5-35b-a3b-vs-gpt-5-4/)

137125–148

Index score

#99 of 229 models

1/ 8

Core tests taken

1 of 6 areas · plus 4 anchor tests

−33

Versus the frontier at release

best then: GPT-5.3-Codex

Replaced by [Qwen3.6-35B-A3B](https://themodelindex.org/models/qwen3-6-35b-a3b/)

$0.16/ $1.3

Price per million tokens

input / output, list price

262K

Context window

tokens it reads at once

## Where it sits · on the frontier

_Chart: Model Index score of every scored model since late 2022, with the best closed and best open model over time_

Gemini 2.5 Pro reached this score 11 months earlier.

## Test results · by area · tick = best by any model

Show 4 anchor tests

Reasoning & knowledge

evidence

GPQA Diamond

83%

Humanity's Last Exam

no result

Maths

evidence

FrontierMath T1-3

no result

Coding

no evidence yet

SWE-bench Verified

no result

Terminal-Bench

no result

Agents

evidence

APEX-Agents

no result

Novel problems

no evidence yet

ARC-AGI-2

no result

Long tasks

no evidence yet

METR time horizon

no result

Independent results from the Epoch AI benchmarking hub, best reasoning setting. The core tests are shown here; anchor tests also inform the score and can be shown above.

## What others say · rank on each leaderboard

The Model Index

independent tests, our method

#99

of 219 · 137

LMArena · Maths

maths questions in chat

#142

of 373 · 1398

LMArena · Text

overall chat quality, judged by people

#149

of 388 · 1394

Epoch Capabilities Index

overall capability from many benchmarks

#93

of 239 · 142.5

LMArena · Coding

coding questions in chat

#153

of 383 · 1435

LMArena · Creative writing

creative writing

#167

of 386 · 1342

LMArena · WebDev

building web apps and front ends

#110

of 123 · 1253

Further left is better. Leaderboards measure different things: LMArena is people voting blind between two answers, the others are test scores. Click any row for the source.

## Best at · top three among current models

Replaced by Qwen3.6-35B-A3B; it no longer leads any category among current models.

Where this model places in the top three of today's models, on category leaderboards and on our core tests.

## Where to use it · prices checked 1 Oct 2026

#### From the lab

Qwen Chat

app · subscription

↗

Alibaba Cloud Model Studio

API

↗

#### API providers · 7 · per million tokens, in / out

D

Darkbloom

$0.080 / $0.75 · fp4

cheapest

D

DeepInfra

$0.14 / $1.0 · fp8

↗

P

Parasail

$0.15 / $1.0 · fp8

↗

A

Alibaba

$0.16 / $1.3

↗

V

Venice

$0.31 / $1.25

↗

A

AtlasCloud

$0.23 / $1.8 · fp8

↗

S

SiliconFlow

$0.24 / $1.8 · fp8

↗

#### Run it yourself

🤗

Official weights

Qwen/Qwen3.5-35B-A3B

↗

Provider prices come from OpenRouter's live listing; going direct to a provider can differ. Subscriptions are the lab's own apps.

## Facts and sources

Released

24 Feb 2026

Announcement

not linked yet

Release entry

–

Scored as

Qwen3.5-35B-A3B

Artificial Analysis index

–

Output speed

–

Hugging Face

[Qwen/Qwen3.5-35B-A3B ↗](https://huggingface.co/Qwen/Qwen3.5-35B-A3B)

## Alibaba releases · around this one

Qwen

Closed

11 APR 2023

Tongyi Qianwen

Closed

11 APR 2023

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Source: https://themodelindex.org/models/qwen3-5-35b-a3b/ · The Model Index · data as of 2026-10-01