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Vichar

GLM-5.3

Zhipu GLM-5.3 flagship coding model, post-trained on the GLM-5.2 base with stronger agentic coding and emergent cybersecurity capabilities and a 1M context window.

Context window

1M

tokens

Max output

128k

tokens

Input

$0.90

per 1M tokens

Output

$3.00

per 1M tokens

Quick start

1curl https://api.vichar.io/v1/chat/completions \
2 -H "Authorization: Bearer $VICHAR_API_KEY" \
3 -H "Content-Type: application/json" \
4 -d '{
5 "model": "glm-5.3",
6 "messages": [{"role": "user", "content": "Hello"}]
7 }'

Supported parameters

  • temperature
  • max_tokens
  • top_p
  • frequency_penalty
  • presence_penalty
  • stop
  • stream
  • tools
  • tool_choice
  • response_format
  • reasoning