GLM Flash Latest vs GLM 5.3 Flash: cost comparison
Prices updated 2026-10-28 · computed from live provider data
Short answer: GLM 5.3 Flash is cheaper on a
3:1 input/output blend — $0.053 per million tokens versus
$0.053, a 0% difference.
Both offer the same 1,048,576-token context window, so cost is the deciding factor.
Head to head
| GLM Flash Latest | GLM 5.3 Flash | |
|---|---|---|
| Input, per 1M tokens | $0.046 | $0.046 |
| Output, per 1M tokens | $0.074 | $0.074 |
| Blended 3:1, per 1M | $0.053 | $0.053 |
| Context window | 1,048,576 | 1,048,576 |
| Vendor | ~z-ai | z-ai |
Monthly cost at real volumes
| Workload (input / output) | GLM Flash Latest | GLM 5.3 Flash |
|---|---|---|
| 1M in / 250K out | $0.065 | $0.065 |
| 10M in / 2.5M out | $0.646 | $0.646 |
| 100M in / 25M out | $6.46 | $6.46 |
Which should you pick?
Because the context windows are identical, the cheaper option is the better default. Choose GLM 5.3 Flash unless you are already standardised on ~z-ai tooling and want to avoid a second integration.