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 Qwen3.5-35B-A3B?
Qwen3.5-35B-A3B is a model from Alibaba, released on Feb 24, 2026. Its SI-IQ is 106 (90% interval 100–112), estimated from 4 benchmark results by 2 evaluators.
Data as of Oct 18, 2026 · method 1.0.0
A model is ranked when its results come from at least 5 benchmarks (the two GPQA Diamond runs count as one) in at least 3 areas, from at least 2 different evaluators, and its versions are released no more than 60 days apart. This model does not meet that yet, so it is shown with a provisional estimate but not ranked.
Facts
- Developer
- Alibaba
- Released
- Feb 24, 2026
- Access
- Open weights (restricted licence)
- Benchmarks used
- 4 benchmark results from 2 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 |
|---|---|---|---|
| OTIS Mock AIME 2024–2025 | 70.0% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| GPQA Diamond | 83.5% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| GPQA Diamond (OpenRouter run) | 75.0% | OpenRouter | OpenRouter benchmark datasets · data file |
| τ²-bench Airline (OpenRouter run) | 73.5% | OpenRouter | OpenRouter benchmark datasets · data file |
Human preference (Arena)
On the Arena leaderboard, where people vote between two anonymous answers, Qwen3.5-35B-A3B has a rating of 1,394 (1,390–1,398) from 30,457 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); Source: OpenRouter (openrouter.ai), licensed under CC BY 4.0: reuse and republish with attribution to OpenRouter (licences and changes).