Text model

GLM-5.1

z-ai/glm-5.1

z-ai/glm-5.1 is a language model from Z.ai you can call on the OceanToken API at $1.40 per 1M input tokens and $4.40 per 1M output tokens, with a 205K-token context window and up to 128K output tokens; it supports reasoning, tool calling.

At a glance

Call it

Base URL https://api.oceantoken.ai/v1, your OceanToken key as the bearer token, and the model ID above as model. The OpenAI SDKs work unchanged; see your first request.

curl https://api.oceantoken.ai/v1/chat/completions \
  -H "Authorization: Bearer $OCEANTOKEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "z-ai/glm-5.1", "messages": [{"role": "user", "content": "Hello"}]}'

Compared with similar models

Text models on OceanToken closest to z-ai/glm-5.1 in price. Every price is what you pay, in US dollars, with no platform fee on top.

More from Z.ai

• GLM-4.5 z-ai/glm-4.5
• GLM-4.5 Air z-ai/glm-4.5-air
• GLM-4.5v z-ai/glm-4.5v
• GLM-4.6 z-ai/glm-4.6
• GLM-4.6v z-ai/glm-4.6v
• GLM-4.7 z-ai/glm-4.7
• GLM-4.7 Flash z-ai/glm-4.7-flash
• GLM-5 z-ai/glm-5

All Z.ai models on OceanToken

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Prices and capabilities on this page were read from the live OceanToken catalog on 2026-10-18 (UTC), when the documentation was built. If a price has changed since, the console's Models page shows the current one.