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Models / Z.ai

Z.aiAvailable on TokenCenter

GLM 5.3 FlashX

z-ai/glm-5.3-flashx

GLM-5.3-FlashX is the high-speed variant of Z.ai's GLM-5.3-Flash, a native multimodal model delivering inference speeds of up to 200 tokens/s.

Key facts

Input price
$0.37 / 1M tokens
Output price
$1.25 / 1M tokens
Context window
1M tokens
Max output
131K tokens
Accepts
Text, Images, Video
Returns
Text

Example: 1,000 requests with 1,000 input and 500 output tokens each would cost about $0.99 (1M input tokens × $0.37 + 0.5M output tokens × $1.25). Estimate your own usage.

Prices are the provider’s own per-token rates with zero markup, from our price list as of Oct 18, 2026. If a call has extra provider charges (images, audio, web search, cached prompts), you pay the reported cost.

Get API keyTry in chatCompare

Call it from your code

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

Works with any OpenAI-compatible SDK: set the base URL to https://api.tokenctr.com/v1. Quickstart

Supported request parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formattemperaturetool_choicetoolstop_ktop_p