Merge GatewayGLM-5.1 model ID, context window & pricing
glm
Quick facts
Model ID zai/glm-5.1
Source Merge Gateway
Context Window 200000
Pricing $1.40 input / $4.40 output per 1M tokens
Capabilities tool calling, reasoning, structured output, temperature control
Model overview
GLM-5.1 is an AI model from Merge Gateway with 200000 token context window and text input support.
Published pricing is $1.40 input and $4.40 output per 1M tokens.
- Workloads that use text inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID zai/glm-5.1
Provider Merge Gateway
Family glm
Status -
Knowledge Cutoff -
Release Date 2026-03-27
Input Modalities text
Output Modalities text
Context Window 200000
Input Limit -
Output Limit 131072
Tool Calling Yes
Reasoning Yes
Structured Output Yes
Temperature Control Yes
Open Weights No
Input Cost / 1M tokens $1.40
Output Cost / 1M tokens $4.40
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.26
Cache Write Cost / 1M tokens $0.00