# GLM-5.1 release · 2026-04-07 · snapshot 2026-10-25

Creator: Z AI · 2 effort levels

| Effort level | Input modalities | Intelligence | Total cost | E2E | On the frontier today | ID |
|---|---|---|---|---|---|---|
| GLM-5.1 (Reasoning) | Text | 26.10 | $1487 | 64.4s | no | `glm-5-1` |
| GLM-5.1 (Non-reasoning) | Text | 24.20 | - | 9.19s | no | `glm-5-1-non-reasoning` |

Open weights · on the open-weights frontier today: 0 of 2

## Launch day (2026-04-07)

- Reached the frontier: 1 of 2
- Reached the open-weights frontier: 1 of 2
- Impact (intelligence × log-cost hypervolume gained): 0.27
- Rank: #33 of 46 releases this past year


> Metrics snapshot: 2026-10-25T15:21:57Z. Intelligence index version: unknown. Release timeline, frontier age, release impact and shakeup cards are reconstructions using one selected snapshot's metrics, not a record of what was known at release. Scores, benchmark cost and derived value may change when the index methodology changes. Source documentation advertises v4.3.2; API correspondence is unverified.