GLM-5.3
Zhipu's flagship coding/reasoning model with a 1M-token context, open-weighted about two weeks after launch.
This entry is marked for review. Check the original sources before relying on its details.
Overview
Zhipu AI (operating internationally as Z.ai) released GLM-5.3 on August 14, 2026, built via scaled post-training on the GLM-5 architecture for coding, reasoning, and agentic tool-use workloads, under a custom license requiring hosts with over $10B in trailing-12-month revenue to pass a Z.ai security review. Zhipu open-weighted a GLM-5.3-Flash variant on Hugging Face (zai-org) around August 26, 2026, under the MIT license.
This is a sourced directory entry. Features and capabilities are reported in the linked sources; this entry does not document independent Aymorphic testing.
Key features
- 1M-token context window
- MIT-licensed GLM-5.3-Flash weights (released ~2 weeks after launch)
- Tied with Kimi K3 on the Artificial Analysis Intelligence Index at a score of 60
- Flash variant for lower-cost deployment
Use cases
- Agentic coding workloads
- Tool-driven reasoning tasks
Pricing
MIT license for GLM-5.3-Flash weights. Third-party hosted pricing (RunInfra): $0.11/million input, $0.03/million cached input, $0.45/million output tokens; native Z.ai GLM Coding Plan rate still unknown.
Pricing reflects the source record and may change. Confirm current terms with the provider.
Dates and sources
- Released
- 14 Aug 2026
- Record updated
- 10 Oct 2026
- Record last checked
- 10 Oct 2026