GLM 5.3 FlashX pricing and routing profile
GLM 5.3 FlashX from Z.ai lists at $0.37 per million input tokens and $1.25 per million output tokens, with a 1,048,576-token context window. Prices from OpenRouter's catalogue on 2026-09-28.
Tool callingReasoning control
Cost per 1,000 requests
| Request shape | List cost |
|---|---|
| Classification or routing (600 tokens in, 10 out) | $0.234 |
| Chat reply (2,000 in, 400 out) | $1.24 |
| Retrieval-augmented answer (8,000 in, 500 out) | $3.58 |
Before prompt caching. Try your own shape in the cost calculator.
Can Gimbix route to it first?
Not as a first-answer model through OpenRouter: no host returns token log probabilities for GLM 5.3 FlashX. It can still be the model Gimbix falls back to when a cheaper model is unsure.
Cheaper models that can answer first
Models priced below GLM 5.3 FlashX that expose a confidence signal. Whether they answer your traffic as well is what a Gimbix pilot measures.
| Model | Input / output per 1M | Cheaper on a chat reply |
|---|---|---|
| Muse Glimmer 30B | $0.30 / $1.20 | 13% |
| MiniMax M3 | $0.30 / $1.20 | 13% |
| MiniMax M2.7 | $0.30 / $1.20 | 13% |
| MiniMax M2 | $0.30 / $1.20 | 13% |
| DeepSeek V3 0324 | $0.29 / $1.14 | 16% |
| Qwen3 Coder 480B A35B | $0.30 / $1.00 | 19% |
Questions
How much does GLM 5.3 FlashX cost?
GLM 5.3 FlashX lists at $0.37 per million input tokens and $1.25 per million output tokens on OpenRouter as of 2026-09-28. A typical chat reply of 2,000 input and 400 output tokens costs about $1.24 per 1,000 requests.
What is the context window of GLM 5.3 FlashX?
1,048,576 tokens.
Can a cheaper model replace GLM 5.3 FlashX?
Sometimes. Gimbix proves it on your own traffic before routing: the cheaper model must match GLM 5.3 FlashX on one half of your requests and make at most three answers worse on the other.