Alibaba (Qwen), proprietary
Qwen3.5-Flash
Qwen3.5-Flash by Alibaba (Qwen) ranks 112th of 354 ranked models on the Noometry Index as of October 2026, with a score of 42.5. Its strongest category is reasoning, where it ranks 72nd. API pricing starts at $0.10 per million input tokens and $0.40 per million output tokens, with a 1M-token context window.
Last verified
Specifications
- Noometry rank
- #112 of 354
- Index score
- 42.5
- Evidence
- Confirmed 32 results
- Provider
Alibaba (Qwen)- Released
- February 23, 2026
- Weights
- Proprietary
- Reasoning
- Yes
- Context window
- 1M
- Max output
- 66K
- Input price
- $0.10 / M
- Output price
- $0.40 / M
- Blended price
- $0.18 / M
- Output speed
- Not measured
- Value
- #32 of 219
- Knowledge cutoff
- Unknown
- Input
- text, image, video
Category scores
Each category score combines every public result we have in that category.
- Coding 34.2
- Reasoning 33.7
- Math 37.4
- Knowledge 43.2
- Multilingual 50.5
- Instruction Following 72.6
- Long Context 42.4
- Writing & Preference 57.9
| Category | Score | Rank | Results |
|---|---|---|---|
| Coding | 34.2 | #242 | 2 |
| Reasoning | 33.7 | #72 | 5 |
| Math | 37.4 | #158 | 3 |
| Knowledge | 43.2 | #93 | 4 |
| Multilingual | 50.5 | #121 | 1 |
| Instruction Following | 72.6 | #139 | 1 |
| Long Context | 42.4 | #124 | 1 |
| Writing & Preference | 57.9 | #122 | 3 |
Strengths and weaknesses
Categories where Qwen3.5-Flash places highest and lowest among the models ranked in each, with its score against that category's median.
Strongest categories
| Category | Score | vs median | Rank |
|---|---|---|---|
| Reasoning | 33.7 | +10.1 | #72 of 350, top 21% |
| Knowledge | 43.2 | +5.9 | #93 of 314, top 30% |
| Writing & Preference | 57.9 | +4.2 | #122 of 312, top 40% |
Weakest categories
| Category | Score | vs median | Rank |
|---|---|---|---|
| Coding | 34.2 | −4.5 | #242 of 340, top 72% |
| Math | 37.4 | +0.9 | #158 of 327, top 49% |
| Instruction Following | 72.6 | +1.3 | #139 of 305, top 46% |
Closest competitors
The models ranked just above and below Qwen3.5-Flash. When scores are this close, price and speed are often the better way to choose.
| Model | Rank | Score | Blended $/M | Speed | |
|---|---|---|---|---|---|
| DeepSeek-V3.1 | #108 | 42.8 | $0.42 | 328 | Compare |
| GPT-5.3 Chat | #109 | 42.8 | $4.81 | — | Compare |
| GPT-5.5 Instant | #110 | 42.7 | — | — | Compare |
| GPT-5.2 Codex | #111 | 42.6 | $4.81 | — | Compare |
| Nemotron 3 Ultra | #113 | 42.5 | $0.93 | — | Compare |
| Hunyuan T1 20250711 | #114 | 42.5 | — | — | Compare |
| DeepSeek-R1 | #115 | 42.3 | $0.91 | 10 | Compare |
| Step 3.5 Flash | #116 | 42.3 | $0.15 | — | Compare |
Sponsored placements are available on pages like this one. Advertise on Noometry
Benchmark results
Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.
Coding
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena WebDev | 1244 | #103 of 113, top 92% | LMArena | 2026-10-08 | |
| LMArena Coding | 1412 | #126 of 294, top 43% | LMArena | 2026-10-08 | |
| ALE-Bench | 221.8 | #102 of 105, top 98% | Epoch AI |
Agentic & Tool Use
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| Vending-Bench 2 | 462.69 | #50 of 60, top 84% | Epoch AI |
Reasoning
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| Chess Puzzles | 21% | #56 of 129, top 44% | Epoch AI | 2026-08-07 | |
| LMArena Hard Prompts | 1403 | #123 of 297, top 42% | LMArena | 2026-10-08 | |
| Mystery Game Puzzles | 20% | #42 of 74, top 57% | Epoch AI | 2026-08-27 | |
| Mystery Game Puzzles | 16% | none | Epoch AI | 2026-08-27 | |
| DTBench | 82.9% | #60 of 151, top 40% | Epoch AI | ||
| LMCA | 29.1% | #77 of 125, top 62% | Epoch AI | ||
| Epoch Capabilities Index | 143.98 | #88 of 213, top 42% | Epoch AI | 2026-02-25 |
Math
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| FrontierMath (Tiers 1-3) | 9.5% | Epoch AI | 2026-08-28 | ||
| FrontierMath (Tiers 1-3) | 18.2% | #73 of 81, top 91% | none | Epoch AI | 2026-08-28 |
| OTIS Mock AIME 2024-2025 | 84.4% | #72 of 173, top 42% | Epoch AI | 2026-08-07 | |
| LMArena Math | 1407 | #118 of 285, top 42% | LMArena | 2026-10-08 | |
| FrontierMath (Feb 2025 set) | 6.2% | #42 of 68, top 62% | Epoch AI | 2026-05-12 | |
| FrontierMath Tier 4 (v1) | 0% | #54 of 55, top 99% | Epoch AI | 2026-05-12 |
Knowledge
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| GPQA Diamond | 82.3% | #75 of 186, top 41% | Epoch AI | 2026-08-07 | |
| SimpleQA Verified | 20.3% | #64 of 77, top 84% | Epoch AI | 2026-08-27 | |
| Vectara Hallucination Rate (lower is better) | 10.5% | #60 of 96, top 63% | Vectara Hallucination Leaderboard | ||
| LMArena Expert | 1407 | #117 of 273, top 43% | LMArena | 2026-10-08 |
Multilingual
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Non-English | 1385 | #121 of 297, top 41% | LMArena | 2026-10-08 | |
| LMArena Chinese | 1446 | #107 of 285, top 38% | LMArena | 2026-10-08 | |
| LMArena French | 1412 | #108 of 223, top 49% | LMArena | 2026-10-08 | |
| LMArena German | 1390 | #102 of 231, top 45% | LMArena | 2026-10-08 | |
| LMArena Japanese | 1368 | #88 of 211, top 42% | LMArena | 2026-10-08 | |
| LMArena Korean | 1344 | #108 of 213, top 51% | LMArena | 2026-10-08 | |
| LMArena Russian | 1379 | #129 of 283, top 46% | LMArena | 2026-10-08 | |
| LMArena Spanish | 1400 | #110 of 226, top 49% | LMArena | 2026-10-08 |
Instruction Following
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Instruction Following | 1374 | #130 of 298, top 44% | LMArena | 2026-10-08 |
Long Context
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Longer Query | 1392 | #124 of 291, top 43% | LMArena | 2026-10-08 |
Writing & Preference
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Text | 1397 | #120 of 297, top 41% | LMArena | 2026-10-08 | |
| LMArena Creative Writing | 1343 | #136 of 295, top 47% | LMArena | 2026-10-08 | |
| LMArena Multi-Turn | 1393 | #127 of 295, top 44% | LMArena | 2026-10-08 |
API pricing by provider
| Route | Input $/M | Output $/M | Cached input $/M | Checked |
|---|---|---|---|---|
| alibaba | $0.10 | $0.40 | $0.01 | 2026-10-10 |
| openrouter | $0.065 | $0.26 | — | 2026-10-10 |
Compare Qwen3.5-Flash
- Qwen3.5-Flash vs GPT-5.2 Codex
- Qwen3.5-Flash vs Nemotron 3 Ultra
- Qwen3.5-Flash vs GPT-5.5 Instant
- Qwen3.5-Flash vs Hunyuan T1 20250711
- Qwen3.5-Flash vs GPT-5.3 Chat
- Qwen3.5-Flash vs DeepSeek-R1
- Qwen3.5-Flash vs GPT-6 Astra
- Qwen3.5-Flash vs Claude Fable 5.1
- Qwen3.5-Flash vs Gemini 3.8 Flash
- Qwen3.5-Flash vs Kimi K3
- Qwen3.5-Flash vs Grok 4.6
- Qwen3.5-Flash vs GLM-5.3
- Qwen3.5-Flash vs Muse Spark 1.3
- Qwen3.5-Flash vs DeepSeek V4 Pro
Other Alibaba (Qwen) models
- Qwen3.8 Max56.8
- Qwen3.7 Max51.5
- Qwen3.6 Max Preview51.5
- Qwen3.6 Plus47.5
- Qwen3.5 397B-A17B46.0
- Qwen3.8 27B46.0
- Qwen3.5 Max Preview45.3
- Qwen3.7 Plus45.3
Frequently asked questions
How good is Qwen3.5-Flash?
Qwen3.5-Flash by Alibaba (Qwen) ranks 112th of 354 ranked models on the Noometry Index as of October 2026, with a score of 42.5. Its strongest category is reasoning, where it ranks 72nd. API pricing starts at $0.10 per million input tokens and $0.40 per million output tokens, with a 1M-token context window.
How much does Qwen3.5-Flash cost?
Qwen3.5-Flash costs $0.10 per million input tokens and $0.40 per million output tokens on Alibaba (Qwen)'s own API, with cached input at $0.01.
What is Qwen3.5-Flash's context window?
Qwen3.5-Flash accepts up to 1M tokens of input and can write up to 66K tokens in one response.
Is Qwen3.5-Flash open source?
No. Qwen3.5-Flash is proprietary and available only through Alibaba (Qwen)'s API and partner platforms.
What are Qwen3.5-Flash's strengths and weaknesses?
Relative to other ranked models, Qwen3.5-Flash places best in reasoning, knowledge, writing & preference and lowest in coding, math, instruction following.
What is Qwen3.5-Flash best at?
Its best category is reasoning, where it ranks 72nd on Noometry.