Z.ai

GLM 5.3 Flash

glm-5.3-flash

Z.ai's natively multimodal GLM-5.3, taking image and video alongside text. A hybrid sparse and linear attention architecture keeps its long-context behaviour steady, and it is fast on coding and long-horizon agent work.

Input: Text + Vision
Context window: 262K tokens
Precision: 4 bits
Price per 1M tokens: Coming soon
Integration: OpenAI-compatible API

ReasoningConfigurable effort

Playground

GLM 5.3 Flash

Preview unavailable

Explore this model in the app

The inline preview isn’t available right now. Check the chat app for availability.

Open chat ↗

Limited free previewContinue in chat ↗

Use it in your app

API documentation ↗

Client Libraries

curl https://api.elastix.ai/v1/chat/completions \
  -H "Authorization: Bearer $ELASTIX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-5.3-flash",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'