GLM-5.3
GLM-5.3 is an open-weights language model from Z.ai, released August 14, 2026. It has 753B parameters (mixture-of-experts, 51B active). The context window is 1M tokens. On the Epoch Capabilities Index it scores 157.1, rank 32 of 256 rated models. API price: $1.4 input / $4.4 output per million tokens.
Check it against your own PC →
Can you run GLM-5.3 locally?
Even with 32 GB of VRAM and 32 GB of RAM it is too large to run at a usable speed on a single consumer GPU. Estimates assume 32 GB of DDR5 RAM, a 16K context and llama.cpp-style GGUF quantization. Enter your exact hardware in the live app.
| GPU memory | Verdict | Best quant | VRAM | RAM | tok/s |
|---|---|---|---|---|---|
| 6 GB VRAM | Too large | – | – | – | – |
| 8 GB VRAM | Too large | – | – | – | – |
| 12 GB VRAM | Too large | – | – | – | – |
| 16 GB VRAM | Too large | – | – | – | – |
| 24 GB VRAM | Too large | – | – | – | – |
| 32 GB VRAM | Too large | – | – | – | – |
Ready-made quantizations on Hugging Face: unsloth/GLM-5.3-GGUF · Scantist/GLM-5.3-SLIM-GGUF · huihui-ai/Huihui-GLM-5.3-abliterated-GGUF · autotrust/GLM-5.3-GGUF-DGX-Spark · nvidia/GLM-5.3-NVFP4 · incoai/GLM-5.3-NVFP4
Strengths by category
ModelTape's 0–100 fit on Epoch AI benchmark results.
| Category | Score | Based on |
|---|---|---|
| Reasoning | 22.5 | Chess Puzzles, SimpleBench, Mystery Game Puzzles |
| Math | 52.2 | ProofBench, OTIS Mock AIME 2024-2025, FrontierMath-Tiers-1-3-v2-Private, FrontierMath-Tier-4-v2-Private |
| Coding | 61.8 | FrontierSWE, DeepSWE |
| Knowledge | 73.4 | GPQA diamond, SimpleQA Verified |
Benchmark results
| Benchmark (Epoch AI) | Score |
|---|---|
| GPQA Diamond | 91.5% |
| OTIS Mock AIME | 91.1% |
| FrontierMath (Tiers 1–3) | 72.4% |
| DeepSWE | 69.0% |
| SimpleBench | 59.4% |
| ProofBench | 49.0% |
| SimpleQA Verified | 41.0% |
| Chess Puzzles | 33.7% |
| FrontierSWE | 30.2% |
| FrontierMath-Tier-4-v2-Private | 29.3% |
| Mystery Game Puzzles | 26.2% |
Links
Hugging Face: zai-org/GLM-5.3 · Epoch AI benchmarks
Models with a similar score
GPT-5.6 Terra · Claude Haiku 5.5 · GPT-5.4 Pro · GPT-5.5 · Claude Opus 4.8 · DeepSeek V4.1 Flash 1017 · Gemini 3.8 Flash · Kimi K3
More from Z.ai
GLM-5.3-FlashX · GLM 5.3 Flash BF16 · GLM 5.3 BF16 · GLM-5.3-Flash · GLM-5.2 · GLM-5.1 · GLM-5V-Turbo · GLM-5-Turbo