Home › Compare › Z.ai: GLM 5.3 Flash vs Z.ai: GLM 5.3 FlashX
Z.ai: GLM 5.3 Flash vs Z.ai: GLM 5.3 FlashX: API Pricing Compared
Comparing Z.ai: GLM 5.3 Flash and Z.ai: GLM 5.3 FlashX: on combined input+output list price, Z.ai: GLM 5.3 Flash is cheaper at $0.65 vs $1.62 per 1M tokens — a difference of $0.97 (60%). Z.ai: GLM 5.3 Flash costs $0.15 in / $0.5 out with a 1,048,576-token context; Z.ai: GLM 5.3 FlashX costs $0.37 in / $1.25 out with a 1,048,576-token context.
| Z.ai: GLM 5.3 Flash | Z.ai: GLM 5.3 FlashX | |
|---|---|---|
| Input /1M | $0.15 | $0.37 |
| Output /1M | $0.5 | $1.25 |
| Cached input /1M | $0.03 | $0.09 |
| Context window | 1,048,576 | 1,048,576 |
| Max output tokens | 943,717 | 131,072 |
| Cost @ 10M in + 2M out / mo | $2.5 | $6.2 |
Estimate your own workload in the cost calculator, or open the full pages for Z.ai: GLM 5.3 Flash and Z.ai: GLM 5.3 FlashX.
Frequently asked questions
Which is cheaper, Z.ai: GLM 5.3 Flash or Z.ai: GLM 5.3 FlashX?
Z.ai: GLM 5.3 Flash is cheaper on combined list price: $0.65 vs $1.62 per 1M tokens (input + output). At 10M input + 2M output tokens per month, Z.ai: GLM 5.3 Flash costs $2.5 and Z.ai: GLM 5.3 FlashX costs $6.2.
Which has the larger context window, Z.ai: GLM 5.3 Flash or Z.ai: GLM 5.3 FlashX?
Z.ai: GLM 5.3 Flash has a context window of 1,048,576 tokens; Z.ai: GLM 5.3 FlashX has 1,048,576 tokens. The larger one is Z.ai: GLM 5.3 Flash.
Price snapshot October 22, 2026, refreshed daily.