GLM-5.3
Zhipu's GLM flagship, scoring 32 on the independent index at its max setting.
Z.ai (Zhipu), reasoning, open weights. Checked 30 October 2026.
Where to use it through an API
Fireworksaccounts/fireworks/models/glm-5p3
Z.aiglm-5.3- Ollama Cloud
glm-5.3
The maker publishes its own benchmarks and limits on its model page.
How it compares
The models just above and below it on the Artificial Analysis Intelligence Index.
| Model | Index | Context | Speed |
|---|---|---|---|
| Grok 4.7 | 35 | 500K | 86/s |
| Qwen3.8 Max | 34 | 984K | 40/s |
| DeepSeek V4.1 Flash | 32 | 1M | 179/s |
| GLM-5.3 | 32 | 1M | 72/s |
| Gemini 3.8 Flash | 31 | 1M | 129/s |
| MiniMax M3.1 Flash | 29 | 1M | 118/s |
| GLM-5.3 Flash | 28 | 1M | 71/s |
Use GLM-5.3 with every other AI at once
Put GLM-5.3 in one panel and ChatGPT, Claude, Gemini or any of 300+ models in the others. One message goes to all of them, answers arrive side by side, and test mode times them and hides the names so you judge fairly. Pro is free with a follow on X, and you use your own keys.
Questions
Is there a free GLM-5.3 API?
Not that we found. GLM-5.3 is paid per token through Fireworks and Z.ai and Ollama Cloud.
What is the GLM-5.3 model id?
Fireworks: accounts/fireworks/models/glm-5p3; Z.ai: glm-5.3; Ollama Cloud: glm-5.3.
How does GLM-5.3 score?
32 on the Artificial Analysis Intelligence Index at its max setting, checked 30 October 2026.
Can I use GLM-5.3 with ChatGPT, Claude and Gemini at the same time?
Yes. MultiScreenAI puts GLM-5.3 in one panel and other models in the others, sends one message to all of them and shows the answers side by side.