GLM 5.3 FlashX API pricing
As of October 22, 2026, Z.ai GLM 5.3 FlashX costs $0.37 per million input tokens and $1.25 per million output tokens on Z.ai's own API, with cached input at $0.09 per million.
GLM 5.3 FlashX benchmarks and specs · Every Z.ai model's price
- Input, per million tokens$0.37
- Output, per million tokens$1.25
- Cached input, per million$0.09
- Context window1.05M tokens
- Max output131K tokens
- Output speedNot measured
What a request costs
Three fixed token mixes at the list price, without cache or batch discounts. For a whole month, use the calculator.
| Workload | Tokens | One request | 1,000 requests | Fits the context window |
|---|---|---|---|---|
| Chat turn | 1K input + 500 output tokens | $0.0010 | $0.995 | Yes |
| Repository review | 50K input + 3K output tokens | $0.022 | $22.25 | Yes |
| Agent loop | 200K input + 10K output tokens | $0.086 | $86.50 | Yes |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | Not computable | Not computable |
Price history
We have read Z.ai's own price every day since October 21, 2026. It has not changed yet; any change will be listed here with its date.
- October 21, 2026 First recorded: $0.37 input, $1.25 output
Cheaper models as good as GLM 5.3 FlashX
GLM 5.3 FlashX has no overall or coding score, so we make no quality claim against it.
GLM 5.3 FlashX pricing questions
- How much does GLM 5.3 FlashX cost per million tokens?
- $0.37 per million input tokens and $1.25 per million output tokens, as listed on OpenRouter on October 22, 2026.
- Does GLM 5.3 FlashX support prompt caching?
- Yes. OpenRouter lists cached input at $0.09 per million tokens, against $0.37 for uncached input.
- Has the price of GLM 5.3 FlashX changed?
- Not since we started recording it daily on October 21, 2026.