GLM-5.3
Model ● Covered in 24 stories + Follow
GLM-5.3 is Z.ai’s open-weight AI model released in August, with coverage describing its performance on coding/agentic benchmarks and an accompanying licensing framework aimed at commercial hosting. Recent reporting includes security-focused evaluations by Anthropic’s Frontier Red Team, which found GLM-5.3 could sometimes complete exploit-generation tasks and noted that open weights may make safeguards easier to remove or bypass. The model has also been used as a starting point for derivatives and deployment tooling, including compressed “pruned” variants for customer-controlled infrastructure and third-party services that host versions with removed refusals or guardrails.
Updated 1 October 2026
Specifications
No specifications recorded yet.
Latest developments
The Next Top Open Model, Google Voice Agents, DeepSeek Shrinks Caches: Plus a letter on open weight cybersecurity capabilities
The Batch ·
45
Prime Intellect Launches Prime Inference: Serverless and Reserved Serving for Frontier Open Models
MarkTechPost · 5 days ago ·
35
Anthropic Warns China’s GLM-5.3 Builds Exploits Like Mythos, Without the Safeguards
Trending Topics · 1 week ago ·
26
Quoting Anthropic Frontier Red Team
Simon Willison’s Weblog · 1 week ago ·
42
Aikido Security Releases Altar-1: An Open-Weight Security Model Pruned From GLM-5.3 to 328 GB
MarkTechPost · 1 week ago ·
27
Xiaomi’s MiMo-V2.6-Pro Is Now the Strongest Open-Weight AI Model
Trending Topics · 2 weeks ago ·
3
Latest open artifacts (#24): Motif-3, GLM-5.3, Hy4-preview and open model licenses
Interconnects · 4 weeks ago ·
27
Abliteration.ai is making a business out of removing AI guardrails
TechCrunch · 1 month ago ·
49
Q4 2026
- The Next Top Open Model, Google Voice Agents, DeepSeek Shrinks Caches: Plus a letter on open weight cybersecurity capabilities
- Prime Intellect Launches Prime Inference: Serverless and Reserved Serving for Frontier Open Models
Q3 2026
Xiaomi releases the MiMo-V2.6 open-weight omnimodal model family, including 1M-context MiMo-V2.6-Pro and faster variants, with public training materials Open source release
Google launches Gemini 3.8 Flash and related agentic video understanding capabilities for its Gemini Flash models Model release
Z.ai released GLM 5.3 as open-weight frontier AI software and published licensing terms that require larger commercial hosts to undergo a security review. Open source release
Z.ai released and open-sourced GLM-5.3-Flash, a natively multimodal mixture-of-experts GLM model with a 1M-token context Open source release
Together AI reported DeepSWE benchmark results comparing GLM-5.3 with GPT-5.6 Sol and Claude Fable 5, including a proposed two-model routing approach Benchmark result
DeepSeek released DeepSeek V4-Pro for general availability (GA) Model release
Z.ai releases GLM-5.3, a coding-focused AI model that it says improves long-horizon performance Model release
Zhipu AI announced and released the GLM-5.3 open-source large language model Open source release
Z.ai released GLM-5.3, a coding/agent model built on the same base model as GLM-5.2 but improved via scaled post-training Model release
- Anthropic Warns China’s GLM-5.3 Builds Exploits Like Mythos, Without the Safeguards
- Quoting Anthropic Frontier Red Team
- Aikido Security Releases Altar-1: An Open-Weight Security Model Pruned From GLM-5.3 to 328 GB
- Xiaomi’s MiMo-V2.6-Pro Is Now the Strongest Open-Weight AI Model
- Latest open artifacts (#24): Motif-3, GLM-5.3, Hy4-preview and open model licenses
- Abliteration.ai is making a business out of removing AI guardrails
- GLM-5.3’s Exploits, AI Models and Hardware Speed Up, DeepSeek’s New Agent Harness
- GLM-5.3-Flash vs. GLM-5.3: Time and money, not the spec sheet
- Z.ai, Maker of GLMs, Makes $142 Million in Revenue at a $71 Billion Market Value
- Z.ai’s GLM-5.3 goes open weight, but its new license aims at hyperscalers
- GLM-5.3 vs. GLM-5.3 Flash on DeepSWE: Cost, Coding, and Routing
- Z.ai Releases GLM-5.3-Flash: A 320B-A18B Natively Multimodal MoE With a 1M-Token Context
- GLM-5.3 vs. Claude Fable 5 on DeepSWE: Cost, Coding, and Routing
- GLM-5.3 vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing
- The Sequence Frontier Learning - Issue 917: Understanding DeepSeek V4-Pro, GLM-5.3, NVIDIA Nemotron 3.5 Lightning and NeMo Switchyard
- An industrial-scale distillation of models, or subtle benchmaxxing: What developers really think of GLM-5.3
- OpenAI’s Greg Brockman: Z.ai’s GLM-5.3 likely to “significantly accelerate the threat landscape”
- GLM-5.3: How Chinese labs keep stride with the frontier
- Z.ai debuts GLM-5.3 with long-horizon coding, cybersecurity upgrades
- GLM-5.3 didn’t change the base model — where did its coding gains come from?
- Z.ai Ships GLM-5.3 Without Retraining the Base Model: Better at Complex Coding and Long-Horizon Tasks
- GLM-5.3
Relationships
Products & technology
- Z.ai develops this model · 8 sources
- Derived from GLM-5.2 · 4 sources
- Z.ai deploys this model · 2 sources
- Anthropic develops this model · 2 sources
- Develops DeepSWE · 1 source
- Zhipu AI develops this model · 1 source
- Hugging Face supplies this model · 1 source
- GLM-5.2 derived from this model · 1 source
- Z.ai API integrated with this model · 1 source
- Abliteration.ai deploys this model · 1 source
Competition
- Competes with Claude Fable 5 · 1 source
Partnerships
- The New Stack partnered with this model · 1 source