Install

GLM 5.3 Flash as a coding agent in your terminal

GLM 5.3 Flash by Z.ai, one of 250+ models you can use in Darce, the open source AI coding agent you can undo.

ModelGLM 5.3 Flash
VendorZ.ai
Model idz-ai/glm-5.3-flash
Context window1.05M tokens
Price per 1M tokens$0.15 input · $0.50 output (OpenRouter)
Can dotool calling · reads images · reasoning
CategoryFast and cheap

Strengths

A fast, inexpensive GLM 5.3 variant.

OpenRouter's description:

GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while...

Use GLM 5.3 Flash as a coding agent in your terminal

Start Darce in your project with GLM 5.3 Flash:

npm install -g darce-cli
darce --model z-ai/glm-5.3-flash

Already in a session? Type /model z-ai/glm-5.3-flash, or open the picker with Ctrl+P. Darce then reads your code, edits files and runs commands with GLM 5.3 Flash; risky commands ask first, and /undo reverses any change, including what shell commands did. No account yet? npx darce-cli lets you try it free. Which plan includes which models is on the pricing page.

Make it your default or a gear

In ~/.darcerc, set it as the starting model or add it to the gears you move between with Shift+↑ / Shift+↓ (see configuration):

{
  "router": { "default": "z-ai/glm-5.3-flash" },
  "gears": ["qwen/qwen3-coder", "z-ai/glm-5.3-flash"]
}

Compare it on your own code

Benchmarks rarely match your repository. Race GLM 5.3 Flash against two other models on a real task and keep the best diff:

/derby --models z-ai/glm-5.3-flash,z-ai/glm-5.3,z-ai/glm-5.1 fix the failing test

Read more about /derby and /swarm.

Related models

  • GLM 5.3 (Z.ai): 1.05M tokens, $0.039 / $4.80 per 1M tokens
  • GLM 5.1 (Z.ai): 205k tokens, $0.97 / $3.04 per 1M tokens
  • Claude Haiku 5.5 (Anthropic): 1M tokens, $0.10 / $0.50 per 1M tokens
  • GPT-6 Luna (OpenAI): 1.05M tokens, $0.10 / $0.50 per 1M tokens
  • Gemini 3.8 Flash (Google): 1.05M tokens, $0.75 / $3.75 per 1M tokens
  • Gemini 3.5 Flash Lite (Google): 1.05M tokens, $0.30 / $2.50 per 1M tokens

All models · Getting started · Claude Code alternative

Model data from OpenRouter, refreshed daily. Prices are OpenRouter's list rates and show relative cost; your Darce allowance is used in proportion to them.