GLM-5.2
GLM-5.2 is Z AI's open-weights model, released June 16, 2026 — a 753-billion-parameter mixture-of-experts with 40B active. Priced at $1.40 per million input tokens and $4.40 per million output, it scores 53 on the Artificial Analysis Intelligence Index and generates at roughly 142 tokens per second.
Spec sheet
| Maker | Z AI |
|---|---|
| Released | 2026-06-16 |
| API ID | glm-5.2 |
| Parameters | 753B total / 40B active (MoE) |
| Context window | 1M tokens |
| Modalities in | text |
| Modalities out | text |
| API availability | Z AI API · Open weights (download) · OpenRouter (unverified) |
| Weights | Open (Open weights) |
| Pricing (per MTok) | $1.4 in / $4.4 outas of · source |
Benchmarks
| Benchmark | Score | Measured | Source |
|---|---|---|---|
| AA Intelligence Index | 53 | artificialanalysis.ai |
Dashed values are vendor-published and not yet reproduced in our harness — methodology.
Changelog
- Z AI releases GLM-5.2 — open 753B MoE at $1.40/$4.40 per MToksource
Head-to-head
Profile published August 11, 2026; data last changed August 11, 2026. Every value carries its own measurement or verification date. Flagged values are best-known public figures pending confirmation.