WhichAI / Models / GLM-5.3-Flash

GLM-5.3-Flash

· verified September 8, 2026

public free paid api open-weights in Generator coding agents value vision long-context

Provider

Statuspublic

AA Intelligence Index57.5 (September 8, 2026 snapshot)

Released2026-08-26

Context window1M

ModalitiesText + vision

API price $/1M (in / out)$0.15 / $0.5 · 320B-A18B MoE, MIT licence

Speedn/a

AccessReleased August 26, 2026 · open weights under MIT · API $0.15/$0.50 per 1M tokens · free chat at chat.z.ai

In one line

The most capable freely downloadable model on this table: 320B-A18B, MIT licence, 1M multimodal context, and $0.15/$0.50 hosted - roughly a thirtieth of what the frontier charges for a score within six points of it. If one entry explains why the open-weight gap stopped mattering in 2026, it is this one.

Coding89

Reasoning84

Writing70

Agents & tools86

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

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GPT-5.6 Terra (OpenAI) · AA 56.6Released July 9, 2026 · API $2.50/$15 per 1M tokens

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Artificial Analysis Intelligence Index, 2026 rebased scale (top models ~ 55-66). Snapshot: September 4, 2026 (BenchLM mirror), retrieved September 8, 2026. Specs and prices come from the OpenRouter public model list on the same date. Models nobody has measured carry no index score at all and never enter a ranking: where an estimate exists it is shown separately and labelled unmeasured. Context, price, modality and release dates come from the public OpenRouter model list (retrieved September 8, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).