Qwen3.5 397B review, price and benchmarks (2026)

public free open-weights in Generator multilingual reasoning

Provider

Statuspublic

AA Intelligence Index33.7 (July 16, 2026 snapshot)

Releasedn/a

Context windown/a

Modalitiesn/a

API price $/1M (in / out)n/a

Speedn/a

AccessOpen weights (Apache 2.0)

In one line

The open MoE flagship of the 3.5 wave - big, capable, Apache-licensed.

Coding64

Reasoning62

Writing56

Agents & tools56

Category scores (0-100) are WhichAI blended ratings: public category leaderboards plus editorial judgment. Guidance, not official measurements.

Alternatives worth a look

Kimi K2.5 (Moonshot AI) · AA 35.4Open weights · API hosts
Claude Sonnet 4.6 (Anthropic) · AA 35.9Claude Pro · API
Gemini 3.5 Flash-Lite (Google) · AA 36.5API $0.30/$2.50 per 1M tokens

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Artificial Analysis Intelligence Index, 2026 rebased scale (top models ≈ 55–60). Snapshot: July 24, 2026 (BenchLM mirror), retrieved July 26, 2026. Context, price and release data come from vendor pages and public pricing mirrors (retrieved July 19, 2026). Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).