EVERYDAY INTELLIGENCE · Z.ai
GLM 5.1
GLM 5.1 is a reasoning, tool-using model from Z.ai in the GLM family, living in Blossom Valley (everyday intelligence). It reads text and writes text, with a 205K-token context window and up to 131K tokens of output. On OpenRouter it costs $1.40 per million input tokens and $4.40 per million output tokens.
See GLM 5.1 in 3DOpen in the WorktableView on OpenRouter
Specifications
- Provider
- Z.ai
- Family
- GLM
- Province
- Blossom Valley
- Context window
- 205K tokens
- Maximum output
- 131K tokens
- Input / 1M tokens
- $1.40
- Output / 1M tokens
- $4.40
- Accepts
- text
- Produces
- text
- Reasoning
- Yes
- Tool use
- Yes
- Added to OpenRouter
- 2026-04-07
- Model ID
z-ai/glm-5.1- Price history
- —All recorded prices
From the 2026-10-24 catalog snapshot. Prices are US dollars per million tokens.
More GLM models
- GLM 5 Turbo203K · $1.20 / $4.00
- GLM 5205K · $1.00 / $3.20
- GLM 4.7205K · $0.540 / $1.98
- GLM 4.6205K · $0.550 / $2.20
- GLM 4.5131K · $0.600 / $2.20