Open-weight LLMs you can run yourself › GLM 5.3 Flash
Updated · public data
Z.ai · Open weights
GLM 5.3 Flash is an open-weight LLM from Z.ai with 321B parameters. It needs about 194 GB of memory at 4-bit — too big for one consumer device, so most people use it through a hosted provider.
| Parameters | 321B |
| Memory to run | ~194 GB (at 4-bit, rough estimate) |
| Downloads | 6.7M (last 30 days on Hugging Face) |
| Likes | 2.9K |
| License | MIT |
| First uploaded | Aug 25, 2026 |
| Hosted from | $0.05 (per 1M input tokens · cheapest on OpenRouter) |
| Phone | iPhone · Android: too big |
| PC with a GPU | 8 GB: too big · 12 GB: too big · 16 GB: too big · 24 GB: too big · 32 GB: too big |
| PC or laptop, no GPU | 16 GB: too big · 32 GB: too big · 64 GB: too big |
| Mac | 16 GB: too big · 32 GB: too big · 64 GB: too big · 128 GB: too big |
huggingface.co/zai-org/GLM-5.3-Flash
Data: Hugging Face (official accounts), Oct 16, 2026 · memory is a rough estimate (4-bit for LLMs, 8-bit for image and video, plus 10%) · hosted price: OpenRouter