GLM 5.3 Flash
Use it free in free-pi
~0.7x usage
npx free-pi-cli
/model glm-5.3-flashAbout GLM-5.3 Flash
GLM-5.3-Flash is a native multimodal model from Z.ai, suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture is designed to keep long-context behavior accurate. It became available in August 2026.
The model accepts text, image, and video input and produces text. Its context window is about one million tokens, and a response can be up to about 940,000 tokens. It supports reasoning with an effort setting, tool calling, and structured outputs. With tool calling, the free-pi agent can read and edit files, run commands, and use free-pi's built-in web search and documentation lookup tools.
It scores 71.5 on the Artificial Analysis Coding Index and 50.9 on the Agentic Index, along with 41.8 on the Intelligence Index. Its coding and agentic scores are higher than the default DeepSeek V4 Flash 0731 (69.1 and 41). On Design Arena it ranks 10th in SVG, 12th in ASCII art, and 14th in UI components.
In free-pi it is free to use with no API key and no card. It counts as about 0.7x usage, so it uses somewhat more of your daily allowance than the default model.
When to pick it
For agent-style coding work and tasks that include images or video, pick GLM-5.3 Flash. It is a good second model to try when the default DeepSeek V4 Flash is stuck on a task, at a moderate allowance cost.
For allowance that lasts longer, pick the default model or Solar Pro 4. For the hardest problems, pick a premium model such as GPT-6.1 Sol.