Automated page. Written and translated automatically by AI and checked against the sources by software; no human editor. SI-IQ is an index built from public benchmark results, not an IQ test. How it works
How smart is Qwen 3.5 Flash (hosted 35B-A3B)?
Qwen 3.5 Flash (hosted 35B-A3B) is a model from Alibaba, released on Feb 25, 2026. Its SI-IQ is 107 (90% interval 103–111), estimated from 6 benchmark results by 1 independent evaluators. Its strongest area is Reasoning and its weakest is Math.
This model has fewer than 5 independent benchmark results or fewer than 2 different evaluators, so it is shown but not ranked.
Facts
- Developer
- Alibaba
- Released
- Feb 25, 2026
- Access
- Not stated
- Benchmarks used
- 6 results from 1 evaluators
Ability by area (SI-IQ, 90% interval)
Every benchmark result we used
Each score is one value exactly as the source published it: for Epoch AI the best of its run settings, for OpenRouter the median hosting provider (the developer's own hosting when it ran the test). “Implied SI-IQ” is the ability that this single result points to; the overall SI-IQ is their precision-weighted average.
| Benchmark | Score | Evaluated by | Source |
|---|---|---|---|
| Chess Puzzles | 14.0% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| Mystery Game Puzzles | 20.0% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| FrontierMath Tiers 1–3 | 18.2% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| OTIS Mock AIME 2024–2025 | 84.4% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| GPQA Diamond | 82.3% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| SimpleQA Verified | 20.3% | Epoch AI | Epoch AI Benchmarking Hub · data file |
Human preference (Arena)
On the Arena leaderboard, where people vote between two anonymous answers, Qwen 3.5 Flash (hosted 35B-A3B) has a rating of 1,396 (1,392–1,400) from 61,802 votes (published Oct 15, 2026). Human preference is a different measure from benchmark ability and is not part of SI-IQ. Arena (Hugging Face)
Computed with SI-IQ method version 1.0.0. Read the full methodology
Data sources: Arena leaderboard dataset on Hugging Face (CC BY 4.0); Epoch AI, ‘Capabilities & benchmarking’ (CC BY 4.0).