Z.ai: GLM 5.3 FlashX
by Z.aiZ.ai: GLM 5.3 FlashX is a large language model from Z.ai. It costs $0.370 per million input tokens and $1.25 per million output tokens. Its context window is 1.0M tokens.
- Input / 1M tokens
- $0.370
- Output / 1M tokens
- $1.25
- Cached input / 1M
- $0.090
- Context window
- 1.0M
On repeated prefixes
tokens
Who serves it cheapest
1 hosts serve GLM 5.3 FlashX. Same weights, same API - the price difference is pure margin and routing.
| Provider | Input / 1M | Output / 1M | Context | Throughput | Uptime 24h |
|---|---|---|---|---|---|
| Z.AICheapestfp8 | $0.370 | $1.25 | 1.0M | - | 100.0% |
About GLM 5.3 FlashX
GLM-5.3-FlashX is the high-speed variant of Z.ai's GLM-5.3-Flash, a native multimodal model delivering inference speeds of up to 200 tokens/s. Built on the same hybrid sparse and linear attention architecture...
Specifications
| Model ID | z-ai/glm-5.3-flashx |
|---|---|
| Provider | Z.ai |
| Context window | 1.0M tokens |
| Max output | 131K tokens |
| Input modalities | text, image, video |
| Output modalities | text |
| Knowledge cutoff | - |
| Open weights | No |
| Released | September 18, 2026 |
Cheaper alternatives
Models that cost less than GLM 5.3 FlashX while keeping at least half its context window and every input modality it supports.
Frequently asked
How much does Z.ai: GLM 5.3 FlashX cost?
$0.370 per million input tokens and $1.25 per million output tokens. Cached input reads cost $0.090 per million tokens.
What is the context window of Z.ai: GLM 5.3 FlashX?
1.0M tokens, with up to 131K tokens of output per request.
Confirm against the source: Z.ai official pricing.