GLM 5.3 Flash via the Tokenator API
What the model is for
GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while reducing compute overhead.
Specification
| Full name | GLM 5.3 Flash |
| API ID | glm-5.3-flash |
| Model vendor | Z-AI |
| Type | Text model (chat / completions) |
| Context window | 1M tokens |
| Max output | 131.1K tokens |
| Image input | yes |
| Tokenator usage multiplier | 1.5× – 1.7× |
| Input modalities | text, image, video |
| Aliases | cursor-glm-5.3-flash |
| Supported API formats | /v1/chat/completions /v1/responses /v1/messages |
| Upstream providers | 3 |
| Current status | available |
| Data updated | 2026-10-11 |
Benchmarks
| Intelligence index | 41.8 |
| Coding index | 71.5 |
| Agentic index | 50.9 |
Artificial Analysis data loaded into the catalog for this model.
Upstream providers
| Provider | Multiplier |
|---|---|
| Chinese Partner #1 | 1.6× |
| AiPartners Ltd | 1.5× |
| Unified LLM API | 1.7× |
A request goes to the first available provider by priority; if it fails, Tokenator switches to the next one.
Example request
curl https://api.tokenator.top/v1/chat/completions \ -H "Authorization: Bearer sk-your-tokenator-key" \ -H "Content-Type: application/json" \ -d '{ "model": "glm-5.3-flash", "messages": [{"role": "user", "content": "Hello"}] }'
Compatible tools
The model can be used in any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code, Cherry Studio, DeepSeek Harness, Hermes, Pi, OpenClaw.
See also
FAQ about GLM 5.3 Flash
What is the API ID of GLM 5.3 Flash?
glm-5.3-flash — put this into the model field of your request.
What context window does GLM 5.3 Flash have?
1M tokens; max output is 131.1K tokens.
How many tokens will a request cost?
(input + output) × 1.5× – 1.7×. See the documentation for details.
Which tools support this model?
Any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code. Setup guides are in the integrations section.