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RelayRouter
Model catalog
Z.ai
35% offprompt cache

GLM 5.3 Flash

glm-5.3-flash

GLM 5.3 Flash — 1.04858M token context, up to 131,072 output tokens, text / image / video input, prompt caching.

Try in playgroundGet an API key

Input / output per 1M

$0.098/$0.325

official $0.15 / $0.5

Network fee$0.0010
ProviderZ.ai
ModalityText, Image, Video

Context

1.0M

Max output

131.1K

Input / 1M

$0.098

Output / 1M

$0.325

Pricing

Input / 1M$0.098$0.15
Output / 1M$0.325$0.5
Network fee$0.0010per request

35% below the official upstream price.

Request

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