GLM 5.1
language modelZ.ai
GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...
Key facts
| Made by | Z.ai |
|---|---|
| Type | language model |
| Released | April 7, 2026 |
| Reads at once | 204,800 tokens |
| Price (API, per million tokens) | $0.97 in · $3.04 out |
| Input → output | text → text |
Questions about GLM 5.1
Who makes GLM 5.1?
GLM 5.1 is made by Z.ai.
When was GLM 5.1 released?
We first saw GLM 5.1 listed on April 7, 2026.
How much does GLM 5.1 cost?
Through OpenRouter it costs $0.97 per million input tokens and $3.04 per million output tokens. Prices change, so check the provider before you build on it.
How much text can GLM 5.1 read at once?
Up to 204,800 tokens, roughly 153.6K words.
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