GLM-5.3

Z.ai (Zhipu AI)

GLM-5.3 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)

—

Output (per 1M tokens)

—

Cached input (per 1M)

—

Specifications

Provider: Z.ai (Zhipu AI)
Context window: —
Parameters: 744B
Released: Aug 2026
Open weights: No
Frontier model: No

Benchmarks

Epoch Capabilities Index: 155.6
GPQA Diamond: 90.9

Compare GLM-5.3 with…

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

FAQ

How much does GLM-5.3 cost?

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

What is GLM-5.3's context window?

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

Is GLM-5.3 open weight?

No — GLM-5.3 is a closed/proprietary model accessed via API.

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.