Z.ai · Released Sep 18, 2026
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...
- Released
- Sep 18 2026
- Context window
- 1M 131K out
- Input / 1M tokens
- $0.37
- Output / 1M tokens
- $1.25
Where to run it
Providers
Only Z.AI serves GLM 5.3 FlashX on OpenRouter right now.
| Provider | Input | Output | Cache read | Context | Max output | Uptime | vs. best |
|---|---|---|---|---|---|---|---|
| Z.AIFP8 | $0.37 | $1.25 | $0.09 | 1M | 131K | 100%24h | Cheapest |
Benchmarks
Benchmark scores
No benchmark scores yet — Epoch AI hasn't evaluated GLM 5.3 FlashX. Scores appear here automatically once it does.
Specs
Details
- Model ID
z-ai/glm-5.3-flashx- Developer
- Z.ai
- Release date
- Sep 18, 2026 ·
- Context window
- 1,048,576 tokens
- Max output
- 131,072 tokens
- API price
- $0.37 / $1.25 per 1M input / output tokens
- Providers
- 1
- Input types
- text, image, video
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- No
- Free tier
- No
Release date, prices and providers from OpenRouter's catalog; buying directly from a provider can cost a little differently. Uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.