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by zai-org

GLM 5.3 Flash.

multimodal open weights 1M ctx

GLM-5.3-Flash is the first natively multimodal model in the GLM-5 series with 320B total parameters and 18B active parameters. It incorporates several architectural improvements over GLM-5.2 including a hybrid architectu

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 Flash?
GLM 5.3 Flash 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 Flash?
GLM 5.3 Flash 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 Flash?
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 Flash open-source or proprietary?
GLM 5.3 Flash is open-weight under the license. You can download and self-host it.