@Sentdex: Zai was gracious enough to give me a key to test out GLM 5.2. I used it on a few simple tasks and quickly realized this…
Summary
Sentdex reports that GLM 5.2 from Zai is the first open model that can replace GPT-5.5 and Opus 4.8 across many tasks, with strong coding and agentic performance and a 1M context window.
View Cached Full Text
Cached at: 06/16/26, 11:41 PM
Zai was gracious enough to give me a key to test out GLM 5.2. I used it on a few simple tasks and quickly realized this model is on another level.
I committed to using GLM 5.2 solely for the weekend and yesterday on everything from simple data analysis, random queries, side projects, and real work, and I can honestly say this is the first open model that I could comfortably replace Opus 4.8/GPT 5.5 with. It’s THAT good. When I say everything, I mean everything. I never needed to fallback to GPT 5.5 or Opus 4.8. This really blew my mind.
I was unable to find any task where I knew GPT 5.5 or Opus 4.8 could solve, but GLM 5.2 could not, and I actually found a few cases where GLM 5.2 was better. I am not trying to overhype anything here. It’s just my actual experience with this model. It was of course only 3ish days of usage, maybe cracks would form in time, but the perf is staggering imo.
I see it’s an “inferior” model on the benchmarks even Zai has shared, but I am not so sure and I think this is the first time I’ve experienced that with an open model. I am not saying it’s necessarily better, but I believe it’s a replacement that you could run on-prem, which is crazy to me.
It was to the point where I was double triple quadruple checking that I wasn’t accidentally running Opus or GPT. I ran thru both Hermes and my own custom coding agent harness with extremely great success.
I cannot believe this is only a 754B model that’s also an open MIT licensed model. Do not sleep on this one, and definitely try it out.
Get it locally if you can!
Can I find a way to run it locally? That’s a different question, but I will be trying to get it done because this model is epic.
Z.ai (@Zai_org): Introducing GLM-5.2: Frontier Intelligence, Open Weights
- Significant improvements in coding and agentic tasks
- Strong long-horizon capabilities with a 1M context window
- Two levels of reasoning effort: GLM-5.2 (max) pushes the limits, while GLM-5.2 (high) strikes a strong
Similar Articles
GLM-5.2: Built for Long-Horizon Tasks
Z.AI introduces GLM-5.2, a flagship model designed for long-horizon tasks with a solid 1M-token context, improved coding capabilities, and an MIT open-source license, showing competitive performance against leading models like Opus 4.8 and GPT-5.5.
If you haven't already, switch to GLM-5.2
Z.ai released GLM-5.2, offering performance comparable to last-gen GPT/Opus at a fraction of the cost, making it suitable for home automation and coding setups.
zai-org/GLM-5.2 is here!
Z.AI releases GLM-5.2, a new flagship model with a solid 1M-token context, enhanced coding capabilities with flexible thinking effort, and improved architecture via IndexShare. It is released under an MIT open-source license.
Quick thoughts on GLM-5.2 (Bonus: Censorship question answers)
A detailed user review of GLM-5.2 accessed via API, praising its long-context coherence, adaptive reasoning, and frontier-level text performance comparable to GPT-5.5, while noting the lack of native vision and high local compute requirements.
@AdinaYakup: GLM 5.2 is here 753B ( smaller than you expect? ) 1M context MIT license GLM IndexShare: reuses the indexer across laye…
GLM 5.2 is released as a 753B parameter open-source model with 1M context length, MIT license, and achieves 99.2 on AIME 2026, outperforming GPT-5.5, Gemini 3.1 Pro, and Claude Opus 4.8.