GLM 5.3 Flash
z-ai/glm-5.3-flash
GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks.
Key facts
- Input price
- $0.048 / 1M tokens
- Output price
- $0.20 / 1M tokens
- Context window
- 1M tokens
- Max output
- 944K tokens
- Accepts
- Text, Images, Video
- Returns
- Text
Example: 1,000 requests with 1,000 input and 500 output tokens each would cost about $0.15 (1M input tokens × $0.048 + 0.5M output tokens × $0.20). Estimate your own usage.
Prices are the provider’s own per-token rates with zero markup, from our price list as of Oct 18, 2026. If a call has extra provider charges (images, audio, web search, cached prompts), you pay the reported cost.
Call it from your code
curl https://api.tokenctr.com/v1/chat/completions \
-H "Authorization: Bearer $TOKENCENTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "z-ai/glm-5.3-flash", "messages": [{"role": "user", "content": "Hello!"}]}'Works with any OpenAI-compatible SDK: set the base URL to https://api.tokenctr.com/v1. Quickstart
Benchmarks
Artificial Analysis
- Intelligence index
- 41.8
- Coding index
- 71.5
- Agentic index
- 50.9
Design Arena
| Category | Rank | Elo | Win rate |
|---|---|---|---|
| Models: SVG | 10 | 1286 | 56.9% |
| Models: ASCII art | 12 | 1268 | 54.9% |
| Models: UI components | 13 | 1318 | 54.9% |
| Models: 3D | 16 | 1317 | 56.3% |
| Models: Code | 21 | 1285 | 49.4% |
| Models: Game dev | 21 | 1284 | 47.3% |
| Models: Websites | 26 | 1274 | 48.5% |
| Models: Data visualization | 29 | 1263 | 50.5% |
Source: Artificial Analysis indexes and Design Arena results as published in OpenRouter’s model data, fetched Oct 15, 2026. Higher is better. Not measured by TokenCenter. See all rankings.