Text model
GLM-5.3 Flash
z-ai/glm-5.3-flash
z-ai/glm-5.3-flash is a language model from Z.ai you can call on the OceanToken API at $0.15 per 1M input tokens and $0.50 per 1M output tokens, with a 1.05M-token context window and up to 944K output tokens; it supports reasoning, tool calling, image input.
At a glance
| Model ID | z-ai/glm-5.3-flash |
|---|---|
| Type | Text |
| Publisher | Z.ai |
| Context window | 1,048,576 tokens |
| Max output | 943,717 tokens |
| Input price | $0.15 per 1M tokens |
| Output price | $0.50 per 1M tokens |
| Cached input price | $0.03 per 1M tokens |
| Capabilities | reasoning, tool calling, image input |
| Endpoint | /v1/chat/completions, /v1/responses |
| API shape | OpenAI-compatible |
| In the catalog since | 2026-08-26 |
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-5.3-flash", "messages": [{"role": "user", "content": "Hello"}]}'
Compared with similar models
Text models on OceanToken closest to z-ai/glm-5.3-flash in price. Every price is what you pay, in US dollars, with no platform fee on top.
| Model | Publisher | Context | Price (per 1M tokens) |
|---|---|---|---|
| GLM-5.3 Flash | Z.ai | 1,048,576 | $0.15 / $0.50 |
GPT-6 Lunaopenai/gpt-6-luna | OpenAI | 1.05M | $0.10 / $0.50 |
Qwen3 30B A3Bqwen/qwen3-30b-a3b | Qwen | 41K | $0.12 / $0.50 |
Cydonia 24B V4.1thedrummer/cydonia-24b-v4.1 | Thedrummer | 131K | $0.30 / $0.50 |
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
Use it
Create an account All models and prices
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.