Official Z.ai platform to experience our new, MIT-licensed GLM models (Base, Reasoning, Rumination). Simple UI focuses on model interaction. Free.
This is the 8th launch from Z.ai. View more
GLM-5
Launching today
A 744B MoE model (40B active) built for complex systems & agentic tasks. #1 open-source on Vending Bench 2, narrowing the gap with Claude Opus 4.5. Features DeepSeek Sparse Attention and "slime" RL infra.
Free
Launch Team
Flowtica Scribe
Hi everyone!
To put it simply: This is the Pony Alpha on @OpenRouter.
GLM-5 is a monster. It scales to 744B params, with 40B active, and integrates @DeepSeek’s Sparse Attention (DSA) to keep costs down while maintaining long context.
But the real story is agentic capability.
On Vending Bench 2, simulating a business over a year, it ranks #1 among open-source models with a balance of $4,432. That is comparable to Claude Opus 4.5 ($5k range).
They built a new async RL infra called "slime" to fix post-training inefficiency, and it shows.
Also, Z.ai has evolved. You can now toggle Agent mode, instead of just Chat, to let it actually execute tasks. Give it a Spin!
Product Hunt
Flowtica Scribe
@curiouskitty I'd say these:
If your agent loop runs for hours, you need Opus-level planning but likely can't justify the API bill. GLM-5 hits that specific "smart enough + cost-effective" sweet spot.
Since it's open weights, you can deploy it on your own infra (or your preferred provider) for sensitive codebases that can't leave your VPC.