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GLM 5.3 Prime

Tools
z-ai/glm-5.3-prime

1M context · Sep 2026 · 2 upstreams

GLM 5.3 Prime is the top reasoning tier of Z.ai's GLM 5.3 line, above the Flash and FlashX cuts, with a 1M-token context window. It sits alongside z-ai/glm-5.3 and z-ai/glm-5.3-flash as a separately priced official variant rather than a packaging of them, so it keeps its own listing row.

Bring your own keyAnyRouter has no platform route for GLM 5.3 Prime. Requests use your key and bill your provider account. AnyRouter adds no fee.
context
1M
input / 1M (list)
$2.80
output / 1M (list)
$8.80
routes
2
speed, 24h
—

Upstreams

2
  1. 1OpenRouterYour key · not addedyour planTPS —TTFT ——
  2. 2Nous ResearchYour key · not addedyour planTPS —TTFT ——
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Try it

Send a prompt

Details

Owner
Zhipu AI
Kind
Chat
Released
Sep 2026
Context
1M
Data policy
Provider retention
Endpoint
/api/v1/chat/completions

Quick start

curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "z-ai/glm-5.3-prime",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'