GLM-5.3

Recent signals

• Mistral releases the weights for Mistral Large 4, or Le Chonk, and says it rivals top open models such as GLM-5.3 on the Artificial Analysis Coding Agent Index (Radhika Rajkumar/ZDNET) Oct 29, 2026
• Open models have real benefits. Do they outweigh the risks? Oct 13, 2026
• GLM-5.3's open release has yet to produce major attacks despite Anthropic's warnings about its Mythos-level cyber risk, undercutting calls to ban open models (Nathan Lambert/Interconnects AI) Oct 6, 2026
• Together Link: open models in the harness you already use. Start with one command today. Oct 4, 2026
• Anthropic says GLM-5.3 can autonomously build end-to-end cyber exploits, like Claude Mythos Preview, but was released without robust safeguards against misuse (Anthropic) Sep 29, 2026
• MiMo-V2.6-Pro ties Grok 4.7 (xHigh) and beats GLM-5.3 (Max) on Artificial Analysis' Intelligence Index, making it the benchmark's top-scoring open-weight model (Carl Franzen/VentureBeat) Sep 21, 2026
• Z.ai releases GLM-5.3's weights under a new license requiring companies with $10B+ in revenue over 12 months to pass Z.ai's security review to host the model Aug 29, 2026
• Tencent releases Hy4 Preview, a 770B-parameter open model with a 1M context window, and says it narrowly beat GLM-5.3 and Kimi K3 in internal engineering tests Aug 29, 2026
• Z.ai Releases GLM-5.3-Flash: A 320B-A18B Natively Multimodal MoE With a 1M-Token Context Aug 26, 2026
• Z.ai prices GLM-5.3 API access at $1.40/1M input tokens and $4.40/1M output tokens, unchanged from GLM-5.2; Kimi K3 costs $3/1M input and $15/1M output tokens Aug 19, 2026
• Z.ai's GLM-5.3 scores 60 on the Artificial Analysis Intelligence Index, seven points above GLM-5.2, on par with Kimi K3, but below Opus 5's 63 and Fable 5's 62 Aug 19, 2026
• Z.ai debuts GLM-5.3, which uses the same base model as GLM-5.2 with scaled post-training for stronger coding skills, and says it'll release weights in two weeks (Z.ai) Aug 14, 2026