gpt-oss-20b review, price and benchmarks (2026)

public free open-weights in Generator local speed

Provider

Statuspublic

AA Intelligence Index14.9 (July 16, 2026 snapshot)

Releasedn/a

Context windown/a

Modalitiesn/a

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

Speedn/a

AccessOpen weights · runs on a laptop

In one line

The small sibling - one of the easiest capable models to run fully offline on consumer hardware.

Coding32

Reasoning30

Writing30

Agents & tools25

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

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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).