GLM-5.2

In one line

A workhorse open-weight coder: SWE-bench Pro 62.1% and near the top of the React board on Code Arena. Superseded on raw capability by GLM-5.3-Flash, but still the lighter, cheaper option of the two to self-host.

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

Alternatives worth a look

• Muse Spark 1.1 (Meta) · AA 33.7API via Meta Superintelligence Labs (Meta's first paid model, July 9, 2026)
• Qwen3.8 27B (Alibaba) · AA 33.7API $0.04/$2.3 per 1M tokens on OpenRouter · open weights · listed August 14, 2026
• Gemini 3.5 Flash (Google) · AA 33.6FREE (most generous free tier) · free API via Google AI Studio

Head-to-head: GLM-5.2 vs Kimi K3

Artificial Analysis Intelligence Index, official scale (the number published on artificialanalysis.ai), relayed by OpenRouter and refreshed automatically: last read October 14, 2026. 209 models carry a current official measurement. A value marked ~ is converted from an earlier snapshot because no current measurement is published; an unmeasured model is never ranked. Context, price, modality and listing dates come from the public OpenRouter model list (refreshed automatically on the live site; static copy retrieved October 3, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (the Ranking chapter and About > Methodology).