GLM-5

GLM-5

Open-weights model for long-horizon agentic engineering

164upvotes
Launched February 13, 2026

About GLM-5

GLM-5 is an open-source, large-scale MoE (Mixture of Experts) language model designed for complex, long-horizon agentic tasks and systems engineering. With 744 billion parameters and 40 billion actively engaged, it pushes the boundaries of AI capabilities, making it suitable for advanced research and development in AI-driven automation, decision-making, and system modeling. Its architecture features DeepSeek Sparse Attention, which enhances efficiency in processing extensive sequences, and an innovative 'slime' reinforcement learning infrastructure, enabling more adaptable and goal-oriented AI behavior. As the top open-source contender on Vending Bench 2, GLM-5 is narrowing the gap with proprietary models like Claude Opus 4.5, making it a compelling choice for organizations seeking transparency and customization in their AI solutions. Its focus on agentic and complex system tasks positions it as a versatile tool for developers and researchers aiming to push AI frontiers.

Screenshots

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+4 more screenshots

Pros

  • Open-source with high transparency and customizability
  • Designed for complex, long-horizon, agentic tasks
  • Features advanced sparse attention (DeepSeek) for efficiency
  • Incorporates innovative reinforcement learning infrastructure ('slime')
  • Narrowing the gap with leading proprietary models

Cons

  • Requires significant computational resources to run effectively
  • Steep learning curve for newcomers to large-scale models
  • Limited user-friendly documentation compared to commercial offerings

Use Cases

1Developing autonomous agents with long-term planning capabilities
2Complex system modeling and simulation
3Advanced research in AI decision-making and reinforcement learning
4Custom AI solutions for scientific and engineering challenges
5Open-source experimentation for AI safety and alignment
6Creating scalable, agent-based automation frameworks

Pricing

Being open-source, GLM-5 is freely available for use and modification. Deployment costs depend on infrastructure needs, but there are no licensing fees. Organizations should anticipate infrastructure expenses for training and inference, especially given the model's size.

Quick Info

Upvotes164
Comments4
Launched2/13/2026

Topics

Open SourceArtificial IntelligenceDevelopment

Alternatives

GPT-4 (OpenAI)
Claude Opus 4.5 (Anthropic)
LLaMA (Meta)
GPT-J (EleutherAI)
PaLM (Google)

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