GLM 4.5V
Z.aiReleased Aug 11, 2025
GLM-4.5V is a vision-language foundation model for multimodal agent applications. Built on a Mixture-of-Experts (MoE) architecture with 106B parameters and 12B activated parameters, it achieves state-of-the-art results in video understanding,...
- Context window
- 66K tokens
- Max output
- 16K tokens
- Input
- text, image
- Output
- text
- Tokenizer
- Other
- Knowledge cutoff
- Dec 31, 2024
- Released
- Aug 11, 2025
- Reasoning
- optional
Pricing
Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.
| Per 1M tokens | Provider | + 3% fee | You pay |
|---|---|---|---|
| Input | $0.600 | $0.018 | $0.618 |
| Output | $1.80 | $0.054 | $1.85 |
| Cache read | $0.110 | $0.0033 | $0.113 |
Supported parameters
- frequency_penalty
- include_reasoning
- max_tokens
- presence_penalty
- reasoning
- repetition_penalty
- response_format
- seed
- stop
- temperature
- tool_choice
- tools
- top_k
- top_p
Call it
OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model z-ai/glm-4.5v.
curl https://api.openkey.ai/v1/chat/completions \
-H "Authorization: Bearer $OPENKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "z-ai/glm-4.5v",
"messages": [{"role": "user", "content": "Hello"}]
}'import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.openkey.ai/v1",
api_key=os.environ["OPENKEY_API_KEY"],
)
completion = client.chat.completions.create(
model="z-ai/glm-4.5v",
messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.openkey.ai/v1",
apiKey: process.env.OPENKEY_API_KEY,
});
const completion = await client.chat.completions.create({
model: "z-ai/glm-4.5v",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);Questions
- How much does GLM 4.5V cost via API?
- Through OpenKey, GLM 4.5V costs $0.618 per 1M input tokens and $1.85 per 1M output tokens. That is the provider price ($0.600 / $1.80) plus a flat 3% fee — nothing else.
- What is GLM 4.5V's context window?
- GLM 4.5V accepts up to 66K tokens of context and returns up to 16K tokens per request.
- Is GLM 4.5V OpenAI-compatible?
- Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "z-ai/glm-4.5v" using any OpenAI SDK — only the base URL and API key change.
- What inputs does GLM 4.5V support?
- GLM 4.5V accepts text, image input and produces text output. Its knowledge cutoff is Dec 31, 2024.
More from Z.ai
All Z.ai models →GLM 5.2
GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering,...
ctx 1.0Min $0.958out $3.09
GLM 5.1
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...
ctx 203Kin $1.00out $4.43
GLM 5V Turbo
GLM-5V-Turbo is Z.ai’s first native multimodal agent foundation model, built for vision-based coding and agent-driven tasks. It natively handles image, video, and text inputs, excels at long-horizon planning, complex coding,...
ctx 203Kin $1.24out $4.12
GLM 5 Turbo
GLM-5 Turbo is a new model from Z.ai designed for fast inference and strong performance in agent-driven environments such as OpenClaw scenarios. It is deeply optimized for real-world agent workflows...
ctx 262Kin $1.24out $4.12