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GLM-5.3

by Z.AI · Language Models

Context 1M tokensReasoning / thinking

Overview

Z.AI GLM-5.3 flagship reasoning model for complex software engineering and long-horizon agent tasks, with a 1M-token context window.

Context window1M tokens
Max output131K tokens
Input → Outputtext → text
CapabilitiesReasoning / thinking

Pricing

$1.813 in · $5.698 out / 1M

UsageRate (USD)Unit
Input tokens$1.81per 1M tokens
Cached input (cache hit)$0.34per 1M tokens
Output tokens$5.7per 1M tokens

TuneRouter live platform pricing · currency: USD · pre-deduction settled by actual usage

Call it in 30 seconds

OpenAI-compatible · base URL https://api.tunerouter.com/v1/

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

Model ID: glm-5.3 · works with OpenAI SDKs — just point base_url at api.tunerouter.com

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