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Models / GLM-5.3-FlashX
GLM-5.3-FlashX
GLM-5.3-Flash family · Provider: zhipu-ai · Status: active
GLM-5.3-FlashX is a GLM-5.3-Flash model developed by zhipu-ai, a Chinese AI company headquartered in Beijing Zhipu Huazhang Technology Co., Ltd. (北京智谱华章科技股份有限公司), Beijing, China and closed weights.
| Key fact | Value |
|---|---|
| Model ID | glm-5.3-flashx |
| Architecture | Not publicly disclosed |
| Context window | Unknown |
| Open weights | No |
| License | proprietary |
| Self-hosting | No |
| API available | Yes |
| API pricing | $0.37 input / $1.25 output per 1M tokens (USD) · provider pricing page |
Capabilities
| Capability | Supported |
|---|---|
| Reasoning | Unknown |
| Coding | Unknown |
| Math | Unknown |
| Chinese | Unknown |
| English | Unknown |
| Multilingual | Unknown |
| Vision | Unknown |
| Audio | Unknown |
| Video | Unknown |
| Tool calling | Unknown |
| Function calling | Unknown |
| Structured output | Unknown |
| Agent capability | Unknown |
| RAG | Unknown |
| Computer use | Unknown |
Known limitations
- Context window, capabilities and benchmark results are not published on the official Z.ai pricing page; not publicly documented as of 2026-09-27
GLM-5.3-FlashX is Zhipu AI’s international-region Flash-tier API model, a sibling of GLM-5.3-Flash with a different price point ($0.37 input / $1.25 output per 1M tokens vs $0.15 / $0.50 for GLM-5.3-Flash). Z.ai’s official navigation labels the pair “GLM-5.3-Flash/FlashX” as a new offering; the two are billed as separate SKUs on the Z.ai platform.
Provider
Pricing
Related models (same family)
API
Model family timeline
| Model | Released | Status |
|---|---|---|
| GLM-5.3-FlashX (this page) | — | active |
| GLM-5.3-Flash | 2026-08-26 | active |
Data interpretation
| Field | Value | Evidence type |
|---|---|---|
| Open weights | No | Official |
| License | proprietary | Official |
| API pricing | $0.37 / $1.25 per 1M tokens (USD) | Official |
| Family position | 2 models in the GLM-5.3-Flash family | China AI Hub analysis |
Evidence types: Official = vendor documentation, pricing pages or model cards. Vendor-reported = benchmark scores published by the vendor. China AI Hub analysis = derived from the database itself. See the sourcing policy.
Sources
Confidence and source hierarchy per the sourcing policy. Facts change; check the source before relying on this page.
What is the context window of GLM-5.3-FlashX?
The context window of GLM-5.3-FlashX has not been publicly disclosed.
Is GLM-5.3-FlashX open weight?
No — GLM-5.3-FlashX is not open weight.
How much does GLM-5.3-FlashX cost through the API?
$0.37 per 1M input tokens and $1.25 per 1M output tokens (USD).
Where does China AI Hub get its GLM-5.3-FlashX data?
From 1 source (official pages first), last verified 2026-09-27. Benchmark scores are labeled by source type; see the sourcing policy for details.