GLM 5.1: The First Open-Source AI That Works for 8 Hours StraightGLM 5.1 is a massive breakthrough in open-source AI, capable of working autonomously for up to eight hours to solve complex tasks without human intervention. Discover how this model outperforms GPT-4 and Claude in benchmarks and learn how to leverage its long-horizon capabilities for your business.00:00 - Intro: A New AI Shift00:17 - 8 Hours of Autonomous Work00:58 - Benchmarking GLM 5.1 vs GPT & Claude02:23 - Experiment 1: 6x Performance Boost03:32 - Experiment 2: Hardware Optimization04:09 - Experiment 3: Building a Desktop from Scratch05:32 - How to Access & Run GLM 5.106:29 - The Future of Long-Horizon AI
Full transcript
GLM 5.1 AI just shot the world, GLM 5.1 just dropped and it's doing something no open source AI model has done before. I want to talk about what makes this different because there's a real shift happening here and if you're running a business right now you need to understand what it means for you. Most AI models give you a quick answer and stop. You ask, it answers, done.
That's been the game for years. GLM 5.1 doesn't work like that. Zaire built this thing to just keep going for hours on its own without you touching it. We're talking up to 8 hours of autonomous work on a single task.
Planning, testing, finding problems, fixing them, improving over and over and over again until the job is done. And I keep saying this, the models that can run long horizon tasks are the ones that will actually replace expensive processes in your business. And GLM 5.1 is a big leap in that direction. Let me give you the numbers first.
On SWE Bench Pro, which is the gold standard benchmark for real coding tasks, GLM 5.1 scores 58.4. That puts it above GPT 5.4 at 57.7, above Claude Opus and also above Gemini 3.1 Pro which is at 54.2. And it's fully open source under the MIT license. On NL2 Repo, which tests how well a model can build entire software repositories from a natural language description, GLM 5.1 scores 42.7.
Claude Opus 4.6 scores 49.8 there. But GLM 5.1 beats every other model in that comparison, including GPT 5.4 at 41.3. On Terminal Bench 2.0, which tests real-world terminal tasks, GLM 5.1 scores 69.0. That's competitive with the best models in the world.
Now here's where it gets really interesting. Most AI models hit a wall. You give them more time, more compute, more tries. And after a certain point, the results stop improving.
They've used up their bag of tricks essentially. They plateau. GLM 5.1 was built specifically to avoid that. The longer it runs, the better the result.
And they proved this with three real experiments. Here's the first one. They gave GLM 5.1 a vector database optimization problem. The goal, get as many queries per second as possible whilst keeping accuracy above 95%.
The previous best result in a short session was 3,547 queries per second. Solid number. They let GLM 5.1 run for over 600 iterations, thousands of tool calls. It kept improving, kept finding new strategies, kept testing and adjusting.
The final result was 21,500 queries per second. That's 6x of an improvement over what a short session could achieve. And it did it without being told how. It looked at its own benchmark logs, figured out where the bottleneck was, pushed its approach and kept going.
If you want to learn exactly how to set up AI agents like this in your business and build 30-day action plans around tools like GLM 5.1, there are 2,800 business owners in the AI Profit Boarding right now doing exactly that. You have four weekly coaching calls, daily tutorials, a full 30-day roadmap built around long horizon AI automation. Link in the description or go to the AIProfitBoarding.com to get access. Here's the second experiment.
They ran GLM 5.1 on KernelBench Level 3, which tests how well a model can take existing code and make it run faster on hardware. Across 50 problems, GLM 5.1 achieved a 3.6 geometric mean speedup. For context, Torch.compile, one of the most respected optimization tools in the world, achieves 1.49x with its best settings. GLM 5.1 did more than twice that, and it kept finding improvements well into a run of over 1,000 tool calls.
The third experiment is the one that actually made me stop and think. They gave GLM 5.1 one prompt, build a Linux-style desktop environment as a web application. No starter code, no design mockups, no intermediate guidance, just build it. Most models, including earlier versions, produce a basic skeleton, declare it done, and stop.
They don't have a mechanism to ask themselves what's missing. ZAI wrapped GLM 5.1 in a simple loop. After each round of work, the model reviewed its own output, identified what could be improved, and kept going for 8 hours straight. The end result was a complete working desktop in the browser.
File browser, terminal, text editor, system monitor, calculator, games, all integrated, all functional, all built autonomously. Think about what that means for your business. Not just faster answers, actual autonomous execution of complex projects. A freelancer using a tool like this could hand off a research project, a campaign brief, a competitive analysis, and come back to a finished product.
An agency owner could run five client processes simultaneously. An e-commerce operator could automate product research, copy creation, and data analysis all at once. The bottleneck is no longer the AI. The bottleneck is knowing how to give it the right task and the right setup.
And that's what separates people who are going to win with these tools from people who are going to keep tinkering. Now GLM 5.1 is open source, MIT licensed, free to use, free to run, free to build on. You can access it through ZAI's API, run it locally with VLM or SGLANG, or plug it into, you know, straight into something like Cloud Code or OpenCloud right now. In the settings file, you could change the model name to GLM 5.1 and you're running it.
And it's also available through ZAI's coding plan, which gives you access to GLM 5.1 and the full model stack for around $27 a quarter on the lite plan. It's pretty remarkable when you compare what you'd normally pay for API access at this performance level. One thing worth knowing, the quota runs at 3x during peak hours and 2x off peak. But through the end of April, they're running a promotion where off peak usage bills are running at 1x.
So if you're going to try it, now's the time. Here's what this all adds up to. The AI models that matter are no longer the ones to give the fastest single answer. They're the ones that can take a goal, run with it for hours, correct themselves, and actually deliver something finished.
GLM 5.1 is one of the first open source models to genuinely compete at that level. A year ago, asking an AI to autonomously optimize anything at 600 iterations would have been science fiction. Now it's a benchmark result you can read on a hugging face model card. The pace of this is not slowing down.
If anything, the gap between people who understand how to run these long horizon agents and people who don't is going to get wider fast. The businesses that figure out how to plug models like GLM 5.1 into the actual workflows, lead gen, content, research, client delivery, are going to operate at a different level than everyone else. It's not about replacing your team, it's about running processes that were previously impossible or prohibitively expensive. And the window to get ahead of this is right now.
Inside the AI profit boardroom, we're already building out tutorials specifically on long horizon AI agents like this. How to set them up, how to stretch your tasks so the model actually finishes them, and how to connect tools like GLM 5.1 to real client work. There's a 30-day roadmap, four coaching calls every week, and 2,700 members, a lot of them already running agentic workflows for client delivery, lead gen, and content at scale. You can connect with people near you using the member app, get help 24-7, and get step-by-step walkthroughs on exactly how to use models like this in your business today.
Link in the comment or go to theaiprofitboardroom.com. Thanks for watching.
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