GLM 5.3
language modelZ.ai
GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves…
Key facts
| Made by | Z.ai |
|---|---|
| Type | language model |
| Released | August 18, 2026 |
| Reads at once | 1,048,576 tokens |
| Price (API, per million tokens) | $0.07 in · $1.4 out |
| Input → output | text → text |
| Downloads (recent) | 2.2M |
| Likes on Hugging Face | 2.3K |
Questions about GLM 5.3
Who makes GLM 5.3?
GLM 5.3 is made by Z.ai.
When was GLM 5.3 released?
We first saw GLM 5.3 listed on August 18, 2026.
How much does GLM 5.3 cost?
Through OpenRouter it costs $0.07 per million input tokens and $1.4 per million output tokens. Prices change, so check the provider before you build on it.
How much text can GLM 5.3 read at once?
Up to 1,048,576 tokens, roughly 786.4K words.
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Modelcast collects this page automatically from public sources (Hugging Face, OpenRouter). Facts are copied from those sources, not written by the maker. Not affiliated with Z.ai.