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Models / Z.ai

Z.aiAvailable on TokenCenter

GLM 5.3 Prime

z-ai/glm-5.3-prime

GLM-5.3-Prime is the high-speed variant of Z.ai's GLM-5.3, inheriting its full capabilities while delivering 1.5–2× the output throughput through inference acceleration.

Key facts

Input price
$2.80 / 1M tokens
Output price
$8.80 / 1M tokens
Context window
1M tokens
Max output
131K tokens
Accepts
Text
Returns
Text

Example: 1,000 requests with 1,000 input and 500 output tokens each would cost about $7.20 (1M input tokens × $2.80 + 0.5M output tokens × $8.80). 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-prime", "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

frequency_penaltyinclude_reasoninglogprobsmax_tokenspresence_penaltyreasoningreasoning_effortresponse_formatseedstoptemperaturetool_choicetoolstop_ktop_logprobstop_p