Home › Compare › Z.ai: GLM 5.3 vs Z.ai: GLM 5.3 Flash
Z.ai: GLM 5.3 vs Z.ai: GLM 5.3 Flash: API Pricing Compared
Comparing Z.ai: GLM 5.3 and Z.ai: GLM 5.3 Flash: on combined input+output list price, Z.ai: GLM 5.3 Flash is cheaper at $0.1613 vs $1.479 per 1M tokens — a difference of $1.318 (89%). Z.ai: GLM 5.3 costs $0.079 in / $1.4 out with a 1,048,576-token context; Z.ai: GLM 5.3 Flash costs $0.0413 in / $0.12 out with a 1,048,576-token context.
| Z.ai: GLM 5.3 | Z.ai: GLM 5.3 Flash | |
|---|---|---|
| Input /1M | $0.079 | $0.0413 |
| Output /1M | $1.4 | $0.12 |
| Cached input /1M | $0.078 | $0.00375 |
| Context window | 1,048,576 | 1,048,576 |
| Max output tokens | 943,718 | 943,718 |
| Cost @ 10M in + 2M out / mo | $3.59 | $0.653 |
Estimate your own workload in the cost calculator, or open the full pages for Z.ai: GLM 5.3 and Z.ai: GLM 5.3 Flash.
Frequently asked questions
Which is cheaper, Z.ai: GLM 5.3 or Z.ai: GLM 5.3 Flash?
Z.ai: GLM 5.3 Flash is cheaper on combined list price: $0.1613 vs $1.479 per 1M tokens (input + output). At 10M input + 2M output tokens per month, Z.ai: GLM 5.3 costs $3.59 and Z.ai: GLM 5.3 Flash costs $0.653.
Which has the larger context window, Z.ai: GLM 5.3 or Z.ai: GLM 5.3 Flash?
Z.ai: GLM 5.3 has a context window of 1,048,576 tokens; Z.ai: GLM 5.3 Flash has 1,048,576 tokens. The larger one is Z.ai: GLM 5.3.
Price snapshot October 21, 2026, refreshed daily.