GLM-5.3 API

z-ai/glm-5.3

Use GLM-5.3 by Z.ai through the Solo Router API: 1M-token context, coding and streaming. $1.82 per million input tokens and $5.72 per million output tokens, billed from prepaid credit.

Example request

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

More from Z.ai

Model	Context	Input / 1M	Output / 1M	Cached / 1M
GLM-5.3 Flash z-ai/glm-5.3-flash	1M	$0.195	$0.65	$0.039
GLM-5.2 z-ai/glm-5.2	1M	$1.82	$5.72	$0.273

Frequently asked questions