# GLM-5.3 vs GLM-5.3-Flash (slim)

> GLM-5.3-Flash and GLM-5.3 score within a point of each other for open-weight models you run yourself, 65.1 and 64.6 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

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GLM-5.3-Flash and GLM-5.3 score within a point of each other on agent readiness, 65.1 (B) and 64.6 (B). GLM-5.3 leads on capability. Both do open-weight models you run yourself.

- GLM-5.3: B 64.6, rank #17 of 100 open-weight models · https://www.anchorterminal.com/tools/glm-5-3.min.md
- GLM-5.3-Flash: B 65.1, rank #16 of 100 open-weight models · https://www.anchorterminal.com/tools/glm-5-3-flash.min.md
- GLM-5.3, good for Teams with an 8-GPU server who want an open coding and long-horizon agent model with a 1M-token context, or agents that call it through Z.ai or a hosted provider Ahead on Capability, 80 against 75.
- GLM-5.3-Flash, good for Teams with a multi-GPU server who want an MIT-licensed multimodal agent model with a 1M-token context, or agents that call it through a hosted provider Ahead on Reach, 60 against 55; Risk, 55 against 50.

| Category | GLM-5.3 | GLM-5.3-Flash |
| --- | --- | --- |
| Capability (35%) | 80 | 75 |
| Reach (25%) | 55 | 60 |
| Risk (20%) | 50 | 55 |
| Agent interface (10%) | 70 | 70 |
| Documentation and upkeep (10%) | 58 | 58 |

| Fact (where they differ) | GLM-5.3 | GLM-5.3-Flash |
| --- | --- | --- |
| Vendor | Z.ai (Zhipu AI) | Z.ai |
| Licence | GLM-5.3 License (MIT-style, with a security review for the largest model-as-a-service operators) | MIT |
| Last release | 2026-10-14 | 2026-08-26 |