docs: clarify that OpenAI/Anthropic services are also supported

- README.md: Multi-Provider Support now explicitly mentions OpenAI and Anthropic
- AGENTS.md: Project overview clarifies DeepSeek is the default demo
- FAQ (en/zh): Lists OpenAI and Anthropic as first-class supported providers
- Configuration docs (en/zh): api field now explains it's a protocol format,
  not a service provider, and can point to any compatible endpoint
- npm/README.md: API key section mentions OpenAI/Anthropic config option

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: zhenruyan

AGENTS.md

@@ -2,7 +2,7 @@
 
 ## Project Overview
 
-VibeCoding is a terminal-based AI coding assistant written in Go, inspired by [pi.dev](https://pi.dev). It supports multiple LLM providers (DeepSeek, and custom providers), sandboxed execution via bubblewrap, and a rich TUI built with BubbleTea.
+VibeCoding is a terminal-based AI coding assistant written in Go, inspired by [pi.dev](https://pi.dev). It supports multiple LLM providers (DeepSeek as the default demo, plus OpenAI, Anthropic, and any custom provider via OpenAI/Anthropic-compatible APIs), sandboxed execution via bubblewrap, and a rich TUI built with BubbleTea.
 
 ## Tech Stack
 

README.md

@@ -10,7 +10,7 @@
 
 ## Features
 
-- **Multi-Provider Support**: DeepSeek (deepseek-v4-flash, deepseek-v4-pro), and custom providers
+- **Multi-Provider Support**: DeepSeek (default), OpenAI, Anthropic, and any custom provider via OpenAI/Anthropic-compatible APIs
 - **SSE Streaming**: Real-time token streaming for fast response delivery
 - **Think Mode**: Extended thinking/reasoning support (DeepSeek reasoning)
 - **Three Modes**:

docs/en/configuration.md

@@ -115,9 +115,13 @@ Multi-provider configuration. Each provider contains:
 
 #### api field
 
+The `api` field specifies the **protocol format**, not the service provider. You can point any provider to any compatible endpoint:
+
 - `openai-chat`: OpenAI Chat Completions API format
 - `anthropic-messages`: Anthropic Messages API format
 
+For example, DeepSeek offers both formats at different endpoints, and you can also use these formats to connect to the actual OpenAI or Anthropic services.
+
 If not specified, auto-detected based on `baseUrl`:
 - Contains "anthropic" → `anthropic-messages`
 - Others → `openai-chat`

docs/en/faq.md

@@ -4,13 +4,15 @@
 
 ### Q: What is VibeCoding?
 
-A: VibeCoding is a terminal AI coding assistant that supports DeepSeek and custom APIs, providing code writing, debugging, refactoring, and other features.
+A: VibeCoding is a terminal AI coding assistant that supports DeepSeek (default), OpenAI, Anthropic, and any custom API via OpenAI/Anthropic-compatible protocols, providing code writing, debugging, refactoring, and other features.
 
 ### Q: Which LLMs are supported?
 
 A:
-- DeepSeek: deepseek-v4-flash, deepseek-v4-pro
-- Custom: Any OpenAI or Anthropic compatible API
+- DeepSeek (default): deepseek-v4-flash, deepseek-v4-pro
+- OpenAI: GPT-4o, o1, etc.
+- Anthropic: Claude Sonnet, Opus, etc.
+- Custom: Any OpenAI-Chat or Anthropic-Messages compatible API endpoint
 
 ### Q: How to install?
 

docs/zh/configuration.md

@@ -115,9 +115,13 @@ VibeCoding 使用两个配置文件:
 
 #### api 字段
 
+`api` 字段指定的是 **协议格式**，而非服务商。你可以将任意提供商指向任意兼容的端点：
+
 - `openai-chat`: OpenAI Chat Completions API 格式
 - `anthropic-messages`: Anthropic Messages API 格式
 
+例如，DeepSeek 在不同端点提供两种格式，你也可以用这些格式去连接真正的 OpenAI 或 Anthropic 服务。
+
 如果未指定，会根据 `baseUrl` 自动检测:
 - 包含 "anthropic" → `anthropic-messages`
 - 其他 → `openai-chat`

docs/zh/faq.md

@@ -4,13 +4,15 @@
 
 ### Q: VibeCoding 是什么?
 
-A: VibeCoding 是一个终端 AI 编码助手，支持 DeepSeek 和自定义 API，提供代码编写、调试、重构等功能。
+A: VibeCoding 是一个终端 AI 编码助手，支持 DeepSeek（默认）、OpenAI、Anthropic 以及任何通过 OpenAI/Anthropic 兼容协议的自定义 API，提供代码编写、调试、重构等功能。
 
 ### Q: 支持哪些 LLM?
 
 A:
-- DeepSeek: deepseek-v4-flash, deepseek-v4-pro
-- 自定义: 任何 OpenAI 或 Anthropic 兼容 API
+- DeepSeek (默认): deepseek-v4-flash, deepseek-v4-pro
+- OpenAI: GPT-4o, o1 等
+- Anthropic: Claude Sonnet, Opus 等
+- 自定义: 任何 OpenAI-Chat 或 Anthropic-Messages 兼容 API 端点
 
 ### Q: 如何安装?
 

npm/README.md

@@ -34,8 +34,10 @@ vibecoding --mode yolo    # Full access
 Set your API key:
 
 ```bash
-# DeepSeek
+# DeepSeek (default)
 export DEEPSEEK_API_KEY=sk-...
+
+# Or configure OpenAI / Anthropic / any compatible API in settings.json
 ```
 
 ## More Information