Billing Transparency

Get cost details and usage details in every call

Infron uses a transparent billing system to ensure every call is precisely metered and billed. Pricing differs across models, and the same model may be priced differently across providers.

Model Prices

Model prices for each provider are listed on the model detail page.

Billing Items

You can enable usage accounting in your requests by including the usage parameter:

Usage Accounting

Python

import requests
import json

response = requests.post(
  url="https://llm.onerouter.pro/v1/chat/completions",
  headers={
    "Authorization": "Bearer <API_Keys>",
    "Content-Type": "application/json"
  },
  data=json.dumps({
    "model": "gemini-3.1-pro-preview", 
    "messages": [
      {
        "role": "user",
        "content": "What is the meaning of life?"
      }
    ],
    "usage": {
      "include": True
    }
  })
)
print(response.json())

cURL

When usage accounting is enabled, the response will include

• usage object with detailed token information

• cost object with the total amount charged to your account.

• cost_details object with the breakdown of the total cost.

usage

Item	Description
total_tokens
prompt_tokens	Total tokens of input prompts
completion_tokens	Total tokens of model-generated output
prompt_tokens_cache_read
prompt_tokens_cache_write
reasoning_tokens	Total tokens of reasoning prompts
native_web_search_requests
plugin_web_search_requests
input_images
input_videos
input_audios
output_images
output_videos
output_audio

cost_details

Item	Description
prompt_cost	Cost for processing input prompts
completion_cost	Cost for model-generated output
image_cost	Cost for image processing or generation
video_cost	Cost for video processing or generation
audio_cost	Cost for audio processing or generation
native_web_search_cost	Cost for invoking native web search functionality
plugin_web_search_cost	Cost for invoking plugin web search functionality
tools_cost	Cost for invoking tool callings
prompt_cache_read_cost	Cost for cache read operations
prompt_cache_write_cost	Cost for cache write operations
prompt_cache_write_5_min	Cost for 5-minute cache write operations
prompt_cache_write_1_h	Cost for 1-hour cache write operations
reasoning_cost	Cost for internal reasoning computations
discount_rate	Effective discount rate
is_byok	Whether is byok
byok_cost	Cost for byok