GLM-5.1
GLM-5.1 is an open-weights language model from Z.ai, released April 7, 2026. It has 754B parameters (mixture-of-experts, 52B active). The context window is 195K tokens. On the Epoch Capabilities Index it scores 150.7, rank 68 of 256 rated models. API price: $1.4 input / $4.4 output per million tokens.
GLM-5.1 is our next-generation flagship model for agentic engineering, with significantly stronger coding capabilities than its predecessor. It achieves state-of-the-art performance on SWE-Bench Pro and leads GLM-5 by a wide margin on NL2Repo (repo generation) and Terminal-Bench 2.0 (real-world terminal tasks).
Check it against your own PC →
Can you run GLM-5.1 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-5.1-GGUF · bartowski/zai-org_GLM-5.1-GGUF · DevQuasar-14/zai-org.GLM-5.1-GGUF · rbinrs/Huihui-GLM-5.1-abliterated-GGUF · vultr/GLM-5.1-GGUF · nvidia/GLM-5.1-NVFP4
Strengths by category
ModelTape's 0–100 fit on Epoch AI benchmark results.
| Category | Score | Based on |
|---|---|---|
| Reasoning | 15.2 | Chess Puzzles, SimpleBench |
| Math | 41.2 | ProofBench, OTIS Mock AIME 2024-2025, FrontierMath-Tier-4-2025-07-01-Private, FrontierMath-Tiers-1-3-v2-Private |
| Knowledge | 70.9 | GPQA diamond, SimpleQA Verified |
Benchmark results
| Benchmark (Epoch AI) | Score |
|---|---|
| OTIS Mock AIME | 93.3% |
| GPQA Diamond | 90.1% |
| SWE-bench Verified | 74.2% |
| SimpleBench | 46.1% |
| FrontierMath (Tiers 1–3) | 38.8% |
| SimpleQA Verified | 34.0% |
| ProofBench | 22.2% |
| FrontierMath-Tier-4-2025-07-01-Private | 20.8% |
| Chess Puzzles | 15.8% |
Links
Announcement · Hugging Face: zai-org/GLM-5.1 · Epoch AI benchmarks
Models with a similar score
Mistral Large 4 · Qwen3.7-Max · GPT-5.2 · DeepSeek V4 Flash 0731 · GLM-5.3-Flash · Muse Spark · GLM-5.2 · Gemini 3 Pro
More from Z.ai
GLM-5.3-FlashX · GLM 5.3 Flash BF16 · GLM 5.3 BF16 · GLM-5.3-Flash · GLM-5.3 · GLM-5.2 · GLM-5V-Turbo · GLM-5-Turbo