計費與定價

# 示例：影片生成計費
response = client.post("/v1/videos/generations", json={
    "model": "veo3.1",
    "prompt": "A sunset over the ocean"
})
# 現在可能會預留預估費用；最終帳單會在任務成功後出現。

poll_url = response.json()["poll_url"]
task_id = response.json()["task_id"]
# 輪詢 poll_url 查看狀態；結算後會出現 billing_transaction_id。

# Rough estimation
def estimate_tokens(text):
    return len(text) / 4  # Approximate for English

# Actual count (for OpenAI models)
import tiktoken
encoder = tiktoken.encoding_for_model("gpt-4o")
tokens = encoder.encode("Your text here")
print(f"Token count: {len(tokens)}")

{
  "usage": {
    "prompt_tokens": 50,
    "completion_tokens": 100,
    "total_tokens": 150
  }
}