Chat Completions
Create chat completions (OpenAI compatible)
BaseURL：https://ai.amethyst.ltd/v1
创建对话补全
POST /chat/completions请求体（OpenAI 格式）：
model: 模型 IDmessages: 消息数组（role:system/user/assistant，content）- 其他参数如
temperature、top_p、max_tokens等保持兼容
示例：
curl https://ai.amethyst.ltd/v1/chat/completions \
-H "Authorization: Bearer $AI_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-4o-mini",
"temperature": 0.7,
"messages": [
{ "role": "user", "content": "用一句话介绍 Amethyst。" }
]
}'响应示例（结构遵循 OpenAI）：
{
"id": "chatcmpl_xxx",
"object": "chat.completion",
"created": 1710000000,
"model": "gpt-4o-mini",
"choices": [
{
"index": 0,
"message": { "role": "assistant", "content": "..." },
"finish_reason": "stop"
}
],
"usage": {
"prompt_tokens": 10,
"completion_tokens": 20,
"total_tokens": 30
}
}