GLM-5.3-Flash

Z.ai (Zhipu AI)Open weights

GLM-5.3-Flash by Z.ai (Zhipu AI) costs — per 1M input tokens and — per 1M output tokens, with a —-token context window.

Pricing

Input (per 1M tokens)

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Output (per 1M tokens)

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Cached input (per 1M)

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Specifications

Provider: Z.ai (Zhipu AI)
Context window: —
Parameters: 320B
Released: Aug 2026
Open weights: Yes
Frontier model: No

Benchmarks

Epoch Capabilities Index: 151.9
GPQA Diamond: 90.2

Compare GLM-5.3-Flash with…

GLM-5.3-Flash vs Pareto Latest$7.50/1M GLM-5.3-Flash vs Llama 3.3 70B Versatile$0.79/1M GLM-5.3-Flash vs Claude Opus 5$25.00/1M GLM-5.3-Flash vs MiMo-V2-Pro$3.00/1M GLM-5.3-Flash vs GPT-4o mini$0.60/1M GLM-5.3-Flash vs o3-pro$40.00/1M

FAQ

How much does GLM-5.3-Flash cost?

GLM-5.3-Flash is priced at — per 1M input tokens and — per 1M output tokens. Output tokens cost more than input.

What is GLM-5.3-Flash's context window?

GLM-5.3-Flash supports a context window of — tokens — the maximum prompt plus response length it can handle in a single request.

Is GLM-5.3-Flash open weight?

Yes — GLM-5.3-Flash has openly available weights.

Data as of 2026-10-14. Source: Epoch AI, Data on AI Models (CC BY 4.0), epoch.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.