GLM-5.2 is a win for local AI

Reddit r/LocalLLaMA Models

Summary

GLM-5.2, a 753B parameter open-source model with MIT license, offers frontier-level coding capabilities and massive context window. Its distillation potential promises significant improvements for local AI setups.

I know GLM 5.2's massive 753B footprint means none of us are running it at home without an enterprise cluster, but having a true frontier-level, MIT-licensed coding agent out in the wild makes me optimistic. The distillation potential here is massive. Once the community starts fine-tuning smaller 8B and 70B architectures on GLM 5.2's reasoning and synthetic datasets, our daily driver local setups are going to see huge improvements over the next few months. Edit: I did not expect so many people saying they can run it on local hardware. Here is the data spec: Quantization Level Memory Required Minimum Hardware Setup FP8 Weights 744 GB to 890 GB 8x H200 (141GB) or 8x H100 (80GB) server node 4-bit (Q4_K_M) 476 GB to 500 GB Mac Studio cluster or 6x 80GB enterprise GPUs 2-bit (Q2_K_XL) 241 GB to 280 GB Single 256GB Mac Studio (Ultra) or RTX 4090 + 256GB system RAM 1-bit Dynamic 176 GB to 180 GB 192GB Mac Studio or 24GB GPU + 192GB system RAM Model & Dataset Facts Pre-Training Data: Trained on a corpus of 28.5 trillion tokens. Architecture Scale: 753B total parameters, activating roughly 40B parameters per token during inference. Context Capacity: Natively supports a 1,000,000-token context window and up to 131,072 output tokens per response. KV Cache VRAM Scaling (Per 100k / 1M Tokens) Utilizing the 1M context window requires significant additional VRAM strictly for the KV cache. This scaling depends entirely on your cache quantization: 16-bit (FP16/BF16): Adds 15–20 GB per 100k tokens (~150–200 GB extra for the full 1M context). 8-bit (FP8/INT8): Adds 7.5–10 GB per 100k tokens (~75–100 GB extra for the full 1M context). This balances accuracy and memory. 4-bit (INT4): Adds 3.5–5 GB per 100k tokens (~35–50 GB extra for the full 1M context). Drastically lowers memory requirements but can degrade long-context retrieval accuracy. NOTE: I gathered this information online and these are estimates. For full transparency, I did use AI to generate the table and break the data down. I lack the editing patience to format this all myself...I am only human!
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