GLM-5.2
A highly capable open-weights model known for long-horizon tasks and advanced coding.
Quality
Modality
text
Context
1M tokens
Access
open weights
Fabian's Take
"A fantastic open-weights option for coding. I've been experimenting with it via OpenRouter, and it handles long-horizon tasks surprisingly well. It's a testament to how fast the open-source community is moving."
GLM-5.2 is the latest iteration in the GLM family from Zhipu AI (internationally branded as Z.ai). As an open-weights model under the MIT license, it offers developers a powerful, unrestricted tool for building complex agentic systems.
Long-horizon coding
The standout capability of GLM-5.2 is its performance on long-horizon coding tasks. Unlike earlier models that struggled to maintain context over hundreds of lines of code, GLM-5.2 can track logic across large codebases, making it a strong contender for autonomous coding agents and complex software engineering workflows.
The Verdict
Best for: Long-horizon coding tasks and complex agentic workflows.
Pros
- Excellent performance on coding and agentic benchmarks
- Open-weights under a permissive MIT license
- Massive 1M token context window
Cons
- Less recognized outside of developer circles
- Requires powerful hardware to run the full model locally
Specs
- Pricing $1.40/M input, $4.40/M output
- Cost Tier budget
- ⚡Speed Tier fast
- License MIT
