GLM-5.1 is Z.AI's latest flagship model, meticulously engineered for long-horizon autonomous tasks. Capable of working continuously on a single assignment for up to 8 hours, it autonomously manages the entire workflow—from initial planning and execution to iterative optimization and the delivery of production-grade results. While its general capabilities and coding proficiency are on par with Claude Opus 4.6, GLM-5.1 excels particularly in sustained execution, complex engineering optimization, and real-world development scenarios. This makes it the ideal foundational model for powering advanced autonomous agents and long-horizon coding assistants.
Use your MyRouter API key with an OpenAI-compatible base URL, then pick the example that matches your stack.
Direct HTTP request for quick testing.
curl https://api.myrouter.ai/openai/v1/chat/completions \
-H "Authorization: Bearer $MYROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "zai-org/glm-5.1",
"messages": [
{
"role": "user",
"content": "Hello from MyRouter"
}
]
}'