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
October 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
September 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
- 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
August 2026
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
- 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