by zai-org

GLM-5.3.

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GLM-5.3 uses the same base model as GLM-5.2 — every gain comes from post-training. Compared with GLM-5.2, it is much better at complex coding and long-horizon tasks

Where to use it

Cheapest hosted endpoints.

Provider	Access	$/M in	$/M out
Fireworks AI	hosted inference	—	—	Launch ↗

FAQ

Frequently asked.

How do I run GLM-5.3?

GLM-5.3 is open-weight, so you can self-host on rented GPUs. See the Run It Yourself tab for GPU configurations + cost estimates, or use one of the hosted inference providers listed on this page.

Where can I access GLM-5.3?

GLM-5.3 is available via Fireworks AI. Each access option lists its own pricing (per million tokens or hourly hosting).

How much does it cost to run GLM-5.3?

Self-hosting cost depends on the GPU you rent and the throughput you need. See the Run It Yourself tab for GPU configurations and hourly cost estimates.

Is GLM-5.3 open-source or proprietary?

GLM-5.3 is open-weight under the license. You can download and self-host it.