Models / Compare /GLM 5.1 vs GLM 5.2
Head to head
GLM 5.1 vs GLM 5.2
Compared on live catalog data — pricing synced daily, benchmark scores with provenance.
The short version
- GLM 5.2 is cheaper to run hosted: $2.42/M output vs $3.04/M for GLM 5.1 (1.3× difference at the cheapest tracked provider).
- GLM 5.2 takes 1M tokens of context vs 205K for GLM 5.1.
- GLM 5.2 scores 0.0708 via Max on Arena Agent (IPS) vs 0.0044 for GLM 5.1.
- GLM 5.1 scores 1518.4089 on Arena Coding vs 1505.7178 via Max for GLM 5.2.
| Spec | ||
|---|---|---|
| Vendor | Z.AI | Z.AI |
| Parameters | 754B | 753B |
| 205K | 1M | |
| Weights | OPEN | OPEN |
| License | MIT License | MIT License |
| Modality | text->text | text->text |
| Released | Apr 3, 2026 | Jun 16, 2026 |
| 475.3 GBest | 475 GBest | |
| Cheapest hosted | $0.97 / $3.04 per 1M (OpenRouter) | $0.76 / $2.42 per 1M (OpenRouter) |
| Tracked providers | 23 | 40 |
GLM 5.1 — our take
GLM 5.1 is a large downloadable text model from Z.AI with a permissive MIT licence and a 204,800-token request limit. Its strongest measured skill is coding, though creative writing lags well behind, and no active-parameter count is disclosed.
full breakdown →GLM 5.2 — our take
Available from more hosts than any other model we track, this large downloadable model from Zhipu carries a permissive MIT licence and a one-million-token request limit. It is a strong choice for teams that want top-tier capability without licensing restrictions.
full breakdown →Need more columns? Use theinteractive comparison to add up to four models.