curl --request POST \
  --url https://api.gravixlayer.com/v1/vectors/{index_id}/upsert/text \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "id": "custom_text_vector",
  "text": "Text to be embedded with specific model",
  "embedding_model": "baai/bge-large-en-v1.5",
  "metadata": {
    "model_used": "bge-large",
    "content_type": "text"
  },
  "delete_protection": false
}'

{
  "id": "custom_text_vector",
  "status": "upserted"
}