Z.ai launches GLM 5.3 FlashX with up to 200 tokens/s generation

Skip to content

Alex Getman @alexgetmancom · 18 Sep 2026, 15:09 UTC · Updated 31 Oct 2026, 20:59 UTC

🚨 Z.ai launches GLM 5.3 FlashX at up to 200 tokens/s

It is essentially the same 320B GLM 5.3 Flash, but with a heavily optimized inference stack and up to 5× faster generation.

Runs on 100,000+ Chinese AI chips. API costs 2.5× more than Flash.

Screenshot of Z.ai's GLM 5.3 FlashX model page, describing it as a high-speed serving option with 320B total parameters, 18B activated parameters, and a 1M-token context window for multimodal coding tasks.

Русская версия Markdown

Related posts

26 Aug⚡️ GLM 5.3 Flash pushes the Pareto frontier With an intelligence index around 57.5, the model costs about $0.09 per task and already sits on the Pareto frontier. Until September 9, Z AI offers a 50% discount, so during the promo the price drops to roughly $0.05 per task…

26 Aug🚨 GLM 5.3 FLASH IS OUT The first natively multimodal model in the GLM 5 series. 320B total parameters, with just 18B active. It beats GLM 5.2 across most benchmarks and gets close to Claude Opus 4.8 on coding and agentic tasks, while costing around 10x less. And yes, ox alpha…

Claude Z.ai GLM

26 Aug🚨 CONFIRMED: OX ALPHA IS A NEW GLM MODEL Bloomberg got confirmation directly from Z.AI that Ox Alpha is a new iteration of the GLM series. Z.AI also said the name was inspired by the Chinese film Niu Lai, or Ox Comes. Model weights will be released tonight.

23 AugTheo made his AI models tier list, so I made mine

Anthropic DeepSeek Google Meta Moonshot AI OpenAI xAI Z.ai Claude DeepSeek Gemini GLM GPT Grok Kimi Muse