> ## Documentation Index
> Fetch the complete documentation index at: https://docs.laozhang.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# July 2025 Announcement Archive

> LaoZhang API model launch, retirement, and pricing announcements from July 2025.

## 📅 July 2025

### ⚠️ GPT-4.5-Preview Model Discontinued

**July 14, 2025**

**GPT-4.5-Preview Officially Discontinued**

* 📌 Discontinued model: `gpt-4.5-preview`
* 🔄 Recommended alternative: `gpt-4.1`
* 📅 Effective date: July 14, 2025
* 📖 Official announcement: [OpenAI Deprecations](https://platform.openai.com/docs/deprecations)

> Developers please update code as soon as possible, replace `gpt-4.5-preview` with `gpt-4.1` to avoid service interruption.

### 🚀 Kimi K2 Model Launch

**July 15, 2025**

**Kimi K2 Preview Version Launch**

* 📌 Model name: `kimi-k2-0711-preview`
* 💰 Price advantage: 15% lower than official price
* 📊 Actual charges follow the real-time console price
* 🌟 Features: Better Chinese understanding and generation capabilities

### 🤖 Grok-4 Model Launch

**July 12, 2025**

**xAI Grok-4 Official Integration**

* 📌 Call name: `grok-4`
* 🧠 Special feature: Built-in reasoning mode
* 📖 Recommended to check official documentation for detailed usage

### 💸 Claude Pricing Update

**July 8, 2025**

**Claude Models Significant Discount**

* 🎉 All series models reduced by **20%**
* ✅ No speed limit, no account ban
* 📊 Actual charges follow the real-time console price
* 🚀 Providing more economical AI services to users

***

[Back to the June–August 2025 archive index](/en/announcements/changelog-archive-2025-06-08)