GLM 5.3 Flash is cheaper than Gemini Pro 1.0 at $0.15/M vs $0.5/M input tokens.
| Spec | Gemini Pro 1.0 | GLM 5.3 Flash |
|---|---|---|
| Input price | $0.5/M tokens | $0.15/M tokens |
| Output price | $1.5/M tokens | $0.5/M tokens |
| Context window | 33K tokens | 1.3M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | Dec 2023 | Aug 2026 |
Not enough votes to call it. On the specs, GLM 5.3 Flash has the edge: newer, bigger context window.
GLM 5.3 Flash costs 3.0x less per token.
GLM 5.3 Flash is cheaper on both: 3.3× input, 3.0× output.
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Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.