Zai Releases GLM-5.3-Flash: 320B Open Source Model with 1M Context
markjeffrey · x · 2026-08-27
Zai has released GLM-5.3-Flash (previously Ox Alpha), a 320B-A18B model featuring a 1M-token context window and native multimodality, released under the MIT License.
- Specs: 320B total parameters with 18B active parameters (MoE).
- Cost: Available at highly competitive rates on engy.ai: $0.15/M input tokens and $0.50/M output tokens.
- Ecosystem: Includes weight downloads, API access, and developer tools like Coding Plan, ZCode, and AutoClaw.
Related event: Zhipu Open-Sources GLM-5.3-Flash: 320B MoE Multimodal at 1/10th the Cost(48 posts)→
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