MODEL SIGNAL · Z.AI
GLM-5.1
Open-weights model from Z.ai (Zhipu AI) with strong web-dev coding performance. Ranks above Kimi K2.6 on Code Arena WebDev leaderboard (1,534 Elo). Competitive on multilingual tasks.
CATEGORYCode
CONTEXT128K
RELEASEDFebruary 1, 2026
Key Features
- 1,534 Elo on WebDev
- Open weights
- Strong multilingual
- Code generation
- Available on OpenRouter
Read the Model Signal report →
The Model Signal report for GLM-5.1 is still compounding. It synthesizes automatically from Signal + Noise wire coverage and the provider announcement — check back as the wire mentions this model.