GLM 4.5

Name: Z.ai GLM 4.5
Price: 0.6 USD
Availability: InStock
Author: Z.ai

z-ai/glm-4.5

GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly enhanced capabilities in reasoning, code generation, and agent alignment. It supports a hybrid inference mode with two options, a "thinking mode" designed for complex reasoning and tool use, and a "non-thinking mode" optimized for instant responses. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. Learn more in our docs

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Input price: $0.60USD / 1M tokens
Output price: $2.20USD / 1M tokens
Context window: N/A
Max output: 98.3K

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Prompt

98.3K max output

Input$0.60/MOutput$2.20/MCache read$0.11/M

OutputReady

Your response will appear here

Choose an example or write a prompt, then click Run.

Model card

Specifications

Pricing

Input: $0.60 / 1M tokens
Output: $2.20 / 1M tokens
Cache read: $0.11 / 1M tokens

Context & modalities

Max output: 98,304 tokens
Input: Text
Output: Text

Capabilities

Chat: Supported
Vision: Not supported
Reasoning: Supported
Structured output: Supported
Function calling: Supported
Audio input: Not supported

Access

Provider: Z.ai
Model ID: z-ai/glm-4.5
Execution: sync
Base URL: https://api.sandbase.ai
API: Chat Completions API
Endpoint: /v1/chat/completions

Start building

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API

Chat Completions API endpoint

https://api.sandbase.ai/v1/chat/completions

Model ID

z-ai/glm-4.5

# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/chat/completions" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "z-ai/glm-4.5",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 2048
}
SANDBASE_JSON
)
printf '%s\n' "$result"

Choose your model

Compare models

All language models

Model	Context	Input / 1M	Output / 1M	Released
GLM 4.5This model `Z.ai`	—	$0.60	$2.20	Jul 25, 2025
GLM 5.5 `Z.ai`	—	Coming soon	Coming soon	Coming soon
GLM 5.3 FlashX `Z.ai`	1M	$0.37	$1.25	Sep 18, 2026
GLM 5.3 Flash `Z.ai`	1M	$0.15	$0.50	Aug 26, 2026
GLM 5.3 `Z.ai`	1M	$1.40	$4.40	Aug 18, 2026
GLM 5.2 `Z.ai`	1M	$1.40	$4.40	Jun 16, 2026

Questions

FAQ

How do I call Z.ai GLM 4.5 through SandBase?

Create a SandBase API key, then send requests with the model ID "z-ai/glm-4.5" to Chat Completions API (/v1/chat/completions) at https://api.sandbase.ai. The request examples on this page show the exact payload.

How much does Z.ai GLM 4.5 cost?

$0.60 per 1M input tokens and $2.20 per 1M output tokens, billed per request from your SandBase balance. Discounts, when available, are shown in the pricing on this page.

Which features does Z.ai GLM 4.5 support?

Z.ai GLM 4.5 supports reasoning, function calling, structured output. See Specifications above for the full list.

Do I need a separate Z.ai account?

No. One SandBase API key and balance gives you access to Z.ai GLM 4.5 and the other models in the catalog; you do not need to sign up with Z.ai separately.