# Z.ai

Z.ai, a Beijing-based AI company behind the GLM series models, reports that GLM-5.3 achieves state-of-the-art performance across multiple benchmarks including Terminal Bench 3.0, CyberGym, Agents' Last Exam, and Z.ai Code Bench, where it is described as the most capable open-weights model for coding.

Status: provisional
Last verified: 2026-08-28T08:25:44.000Z

## Evidence

- (single_source) Z.ai is an active company.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) Z.ai has 13 prior funding rounds.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) Z.ai has the SEC CIK number 0002109545.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) Z.ai has the stock symbol KNWAY on the OTC market.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) Z.ai is a Technology, Information and Internet company.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) Z.ai is under public ownership.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) GLM-5.3 achieved open-source SOTA on Agents' Last Exam.
  - supports https://z.ai/blog/glm-5.3
    > Call it at Z.ai Z.ai Coding Plan Code with ZCode HuggingFace (Coming Soon)
...
are releasing GL
...
-5.3.
...
uses the same base model as
...
training. Compared with GLM-5.2, it is much better at
...
coding and long
...
horizon tasks:
...
- Stronger Coding: GLM-5.3 is the most capable open-weights model for coding, with a 50% improvement over GLM-5.2 on our in-house Z.ai Code Bench. It also achieve open-source SOTA on public benchmarks including Terminal Bench 3.0 and Agents' Last Exam.
...
- Emergent Cyber Capability: As we scaled post-training, cyber capability developed faster than we expected. GLM-5.3 is state of the art on CyberGym for vulnerability discovery, and its gains are largest further up the exploitation chain, where it more than doubles GLM-5.2 on exploitation benchmarks.

- (single_source) GLM-5.3 showed a 50% improvement over GLM-5.2 on Z.ai's in-house Z.ai Code Bench.
  - supports https://z.ai/blog/glm-5.3
    > Call it at Z.ai Z.ai Coding Plan Code with ZCode HuggingFace (Coming Soon)
...
are releasing GL
...
-5.3.
...
uses the same base model as
...
training. Compared with GLM-5.2, it is much better at
...
coding and long
...
horizon tasks:
...
- Stronger Coding: GLM-5.3 is the most capable open-weights model for coding, with a 50% improvement over GLM-5.2 on our in-house Z.ai Code Bench. It also achieve open-source SOTA on public benchmarks including Terminal Bench 3.0 and Agents' Last Exam.
...
- Emergent Cyber Capability: As we scaled post-training, cyber capability developed faster than we expected. GLM-5.3 is state of the art on CyberGym for vulnerability discovery, and its gains are largest further up the exploitation chain, where it more than doubles GLM-5.2 on exploitation benchmarks.

- (single_source) GLM-5.3 more than doubles GLM-5.2 on exploitation benchmarks.
  - supports https://z.ai/blog/glm-5.3
    > its gains are largest further up the exploitation chain, where it more than doubles GLM-5.2 on exploitation benchmarks.

- (single_source) GLM-5.3 is built on the same base model as GLM-5.2.
  - supports https://z.ai/blog/glm-5.3
    > Call it at Z.ai Z.ai Coding Plan Code with ZCode HuggingFace (Coming Soon)
...
are releasing GL
...
-5.3.
...
uses the same base model as
...
training. Compared with GLM-5.2, it is much better at
...
coding and long
...
horizon tasks:
...
- Stronger Coding: GLM-5.3 is the most capable open-weights model for coding, with a 50% improvement over GLM-5.2 on our in-house Z.ai Code Bench. It also achieve open-source SOTA on public benchmarks including Terminal Bench 3.0 and Agents' Last Exam.
...
- Emergent Cyber Capability: As we scaled post-training, cyber capability developed faster than we expected. GLM-5.3 is state of the art on CyberGym for vulnerability discovery, and its gains are largest further up the exploitation chain, where it more than doubles GLM-5.2 on exploitation benchmarks.

- (single_source) Z.ai has the stock symbol 2513 on the Hong Kong Stock Exchange.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) GLM-5.3 is the most capable open-weights model for coding, with a 50% improvement over GLM-5.2 on Z.ai Code Bench
  - supports https://z.ai/blog/glm-5.3
    > GLM-5.3 is the most capable open-weights model for coding, with a 50% improvement over GLM-5.2 on our in-house Z.ai Code Bench

- (single_source) GLM-5.3 achieves state-of-the-art performance on Agents' Last Exam
  - supports https://z.ai/blog/glm-5.3
    > It also achieve open-source SOTA on public benchmarks including Terminal Bench 3.0 and Agents' Last Exam

- (single_source) GLM-5.3 achieves state-of-the-art performance on Terminal Bench 3.0
  - supports https://z.ai/blog/glm-5.3
    > It also achieve open-source SOTA on public benchmarks including Terminal Bench 3.0

- (single_source) GLM-5.3 is state of the art on CyberGym for vulnerability discovery.
  - supports https://z.ai/blog/glm-5.3
    > GLM-5.3 is state of the art on CyberGym for vulnerability discovery

- (single_source) Z.ai is also known by the aliases z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, and Beijing Zhipu Huazhang Technology Co.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) Z.ai employs 85 people.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) GLM-5.3 is a model released by Z.ai.
  - supports https://z.ai/blog/glm-5.3
    > Call it at Z.ai Z.ai Coding Plan Code with ZCode HuggingFace (Coming Soon)
...
are releasing GL
...
-5.3.
...
uses the same base model as
...
training. Compared with GLM-5.2, it is much better at
...
coding and long
...
horizon tasks:
...
- Stronger Coding: GLM-5.3 is the most capable open-weights model for coding, with a 50% improvement over GLM-5.2 on our in-house Z.ai Code Bench. It also achieve open-source SOTA on public benchmarks including Terminal Bench 3.0 and Agents' Last Exam.
...
- Emergent Cyber Capability: As we scaled post-training, cyber capability developed faster than we expected. GLM-5.3 is state of the art on CyberGym for vulnerability discovery, and its gains are largest further up the exploitation chain, where it more than doubles GLM-5.2 on exploitation benchmarks.

- (single_source) GLM-5.3 is the most capable open-weights model for coding.
  - supports https://z.ai/blog/glm-5.3
    > Call it at Z.ai Z.ai Coding Plan Code with ZCode HuggingFace (Coming Soon)
...
are releasing GL
...
-5.3.
...
uses the same base model as
...
training. Compared with GLM-5.2, it is much better at
...
coding and long
...
horizon tasks:
...
- Stronger Coding: GLM-5.3 is the most capable open-weights model for coding, with a 50% improvement over GLM-5.2 on our in-house Z.ai Code Bench. It also achieve open-source SOTA on public benchmarks including Terminal Bench 3.0 and Agents' Last Exam.
...
- Emergent Cyber Capability: As we scaled post-training, cyber capability developed faster than we expected. GLM-5.3 is state of the art on CyberGym for vulnerability discovery, and its gains are largest further up the exploitation chain, where it more than doubles GLM-5.2 on exploitation benchmarks.

- (single_source) Z.ai is the AI company behind the GLM series models.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) Z.ai has an annual revenue of $6.8M.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) Z.ai is headquartered in Beijing, China.
  - supports https://z.ai/
    > Z.ai (2513) is a Technology, Information and Internet company. Z.ai employs 85 people (+126.2% YoY, +77 people) and has an annual revenue of $6.8M. Headquartered in Beijing, China. Its workforce is distributed across 11 countries (including China, United States, United Kingdom, Singapore, and Hong Kong). with 13 prior funding rounds.
...
Z.ai is the AI company behind the GLM series models, dedicated to inspiring the development of AGI to benefit humanity.
...
, China
- Homepage: z.ai
- Status: active
- Ownership: Public
- Aliases: z.ai, beijing knowledge atlas technology co., ltd., Zhipu AI, Beijing Knowledge Atlas Technology Co Ltd, Beijing Zhipu Huazhang Technology Co.
- SEC CIK: 0002109545
- EIN: 000000000
- Stock Symbols: KNWAY (OTC)
- Stock Symbols: 2513 (Hong Kong Stock Exchange)
-

- (single_source) GLM-5.3 achieved open-source SOTA on Terminal Bench 3.0.
  - supports https://z.ai/blog/glm-5.3
    > Call it at Z.ai Z.ai Coding Plan Code with ZCode HuggingFace (Coming Soon)
...
are releasing GL
...
-5.3.
...
uses the same base model as
...
training. Compared with GLM-5.2, it is much better at
...
coding and long
...
horizon tasks:
...
- Stronger Coding: GLM-5.3 is the most capable open-weights model for coding, with a 50% improvement over GLM-5.2 on our in-house Z.ai Code Bench. It also achieve open-source SOTA on public benchmarks including Terminal Bench 3.0 and Agents' Last Exam.
...
- Emergent Cyber Capability: As we scaled post-training, cyber capability developed faster than we expected. GLM-5.3 is state of the art on CyberGym for vulnerability discovery, and its gains are largest further up the exploitation chain, where it more than doubles GLM-5.2 on exploitation benchmarks.

## Timeline

- 2026-08-27T05:05:24.000Z: GLM-5.3 is the most capable open-weights model for coding with 50% improvement over GLM-5.2 on Z.ai Code Bench GLM-5.3 achieves state-of-the-art performance on Terminal Bench 3.0 GLM-5.3 achieves state-of-the-art performance on Agents' Last Exam GLM-5.3 is state of the art on CyberGym for vulnerability discovery
- 2026-08-28T08:19:15.000Z: Z.ai identified as the AI company behind the GLM series models Z.ai is headquartered in Beijing, China GLM-5.3 achieves state-of-the-art on Terminal Bench 3.0 GLM-5.3 is state of the art on CyberGym for vulnerability discovery GLM-5.3 achieves state-of-the-art on Agents' Last Exam GLM-5.3 is the most capable open-weights model for coding with 50% improvement over GLM-5.2 on Z.ai Code Bench