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Budget Routing

LiteLLM Supports setting the following budgets:

  • Provider budget - $100/day for OpenAI, $100/day for Azure.
  • Model budget - $100/day for gpt-4 https://api-base-1, $100/day for gpt-4o https://api-base-2
  • Tag budget - $10/day for tag=product:chat-bot, $100/day for tag=product:chat-bot-2

Provider Budgets​

Use this to set budgets for LLM Providers - example $100/day for OpenAI, $100/day for Azure.

Quick Start​

Set provider budgets in your proxy_config.yaml file

Proxy Config setup​

model_list:
    - model_name: gpt-3.5-turbo
      litellm_params:
        model: openai/gpt-3.5-turbo
        api_key: os.environ/OPENAI_API_KEY

router_settings:
  provider_budget_config: 
    openai: 
      budget_limit: 0.000000000001 # float of $ value budget for time period
      time_period: 1d # can be 1d, 2d, 30d, 1mo, 2mo
    azure:
      budget_limit: 100
      time_period: 1d
    anthropic:
      budget_limit: 100
      time_period: 10d
    vertex_ai:
      budget_limit: 100
      time_period: 12d
    gemini:
      budget_limit: 100
      time_period: 12d
  
  # OPTIONAL: Set Redis Host, Port, and Password if using multiple instance of LiteLLM
  redis_host: os.environ/REDIS_HOST
  redis_port: os.environ/REDIS_PORT
  redis_password: os.environ/REDIS_PASSWORD

general_settings:
  master_key: sk-1234

Make a test request​

We expect the first request to succeed, and the second request to fail since we cross the budget for openai

Langchain, OpenAI SDK Usage Examples

curl -i http://localhost:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "gpt-4o",
    "messages": [
      {"role": "user", "content": "hi my name is test request"}
    ]
  }'

How provider budget routing works​

  1. Budget Tracking:

    • Uses Redis to track spend for each provider
    • Tracks spend over specified time periods (e.g., "1d", "30d")
    • Automatically resets spend after time period expires

  2. Routing Logic:

    • Routes requests to providers under their budget limits
    • Skips providers that have exceeded their budget
    • If all providers exceed budget, raises an error

  3. Supported Time Periods:

    • Seconds: "Xs" (e.g., "30s")
    • Minutes: "Xm" (e.g., "10m")
    • Hours: "Xh" (e.g., "24h")
    • Days: "Xd" (e.g., "1d", "30d")
    • Months: "Xmo" (e.g., "1mo", "2mo")

  4. Requirements:

    • Redis required for tracking spend across instances
    • Provider names must be litellm provider names. See Supported Providers

Monitoring Provider Remaining Budget​

Get Budget, Spend Details​

Use this endpoint to check current budget, spend and budget reset time for a provider

Example Request

curl -X GET http://localhost:4000/provider/budgets \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234"

Example Response

{
    "providers": {
        "openai": {
            "budget_limit": 1e-12,
            "time_period": "1d",
            "spend": 0.0,
            "budget_reset_at": null
        },
        "azure": {
            "budget_limit": 100.0,
            "time_period": "1d",
            "spend": 0.0,
            "budget_reset_at": null
        },
        "anthropic": {
            "budget_limit": 100.0,
            "time_period": "10d",
            "spend": 0.0,
            "budget_reset_at": null
        },
        "vertex_ai": {
            "budget_limit": 100.0,
            "time_period": "12d",
            "spend": 0.0,
            "budget_reset_at": null
        }
    }
}

Prometheus Metric​

LiteLLM will emit the following metric on Prometheus to track the remaining budget for each provider

This metric indicates the remaining budget for a provider in dollars (USD)

litellm_provider_remaining_budget_metric{api_provider="openai"} 10

Model Budgets​

Use this to set budgets for models - example $10/day for openai/gpt-4o, $100/day for openai/gpt-4o-mini

Quick Start​

Set model budgets in your proxy_config.yaml file

model_list:
  - model_name: gpt-4o
    litellm_params:
      model: openai/gpt-4o
      api_key: os.environ/OPENAI_API_KEY
      max_budget: 0.000000000001 # (USD)
      budget_duration: 1d # (Duration. can be 1s, 1m, 1h, 1d, 1mo)
  - model_name: gpt-4o-mini
    litellm_params:
      model: openai/gpt-4o-mini
      api_key: os.environ/OPENAI_API_KEY
      max_budget: 100 # (USD)
      budget_duration: 30d # (Duration. can be 1s, 1m, 1h, 1d, 1mo)


Make a test request​

We expect the first request to succeed, and the second request to fail since we cross the budget for openai/gpt-4o

Langchain, OpenAI SDK Usage Examples

curl -i http://localhost:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "gpt-4o",
    "messages": [
      {"role": "user", "content": "hi my name is test request"}
    ]
  }'

✨ Tag Budgets​

info

✨ This is an Enterprise only feature Get Started with Enterprise here

Use this to set budgets for tags - example $10/day for tag=product:chat-bot, $100/day for tag=product:chat-bot-2

Quick Start​

Set tag budgets by setting tag_budget_config in your proxy_config.yaml file

model_list:
  - model_name: gpt-4o
    litellm_params:
      model: openai/gpt-4o
      api_key: os.environ/OPENAI_API_KEY

litellm_settings:
  tag_budget_config:
    product:chat-bot: # (Tag)
      max_budget: 0.000000000001 # (USD)
      budget_duration: 1d # (Duration)
    product:chat-bot-2: # (Tag)
      max_budget: 100 # (USD)
      budget_duration: 1d # (Duration)

Make a test request​

We expect the first request to succeed, and the second request to fail since we cross the budget for openai/gpt-4o

Langchain, OpenAI SDK Usage Examples

curl -i http://localhost:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "gpt-4o",
    "messages": [
      {"role": "user", "content": "hi my name is test request"}
    ],
    "metadata": {"tags": ["product:chat-bot"]}
  }'

Multi-instance setup​

If you are using a multi-instance setup, you will need to set the Redis host, port, and password in the proxy_config.yaml file. Redis is used to sync the spend across LiteLLM instances.

model_list:
    - model_name: gpt-3.5-turbo
      litellm_params:
        model: openai/gpt-3.5-turbo
        api_key: os.environ/OPENAI_API_KEY

router_settings:
  provider_budget_config: 
    openai: 
      budget_limit: 0.000000000001 # float of $ value budget for time period
      time_period: 1d # can be 1d, 2d, 30d, 1mo, 2mo
  
  # 👇 Add this: Set Redis Host, Port, and Password if using multiple instance of LiteLLM
  redis_host: os.environ/REDIS_HOST
  redis_port: os.environ/REDIS_PORT
  redis_password: os.environ/REDIS_PASSWORD

general_settings:
  master_key: sk-1234

Spec for provider_budget_config​

The provider_budget_config is a dictionary where:

  • Key: Provider name (string) - Must be a valid LiteLLM provider name
  • Value: Budget configuration object with the following parameters:
    • budget_limit: Float value representing the budget in USD
    • time_period: Duration string in one of the following formats:
      • Seconds: "Xs" (e.g., "30s")
      • Minutes: "Xm" (e.g., "10m")
      • Hours: "Xh" (e.g., "24h")
      • Days: "Xd" (e.g., "1d", "30d")
      • Months: "Xmo" (e.g., "1mo", "2mo")

Example structure:

provider_budget_config:
  openai:
    budget_limit: 100.0    # $100 USD
    time_period: "1d"      # 1 day period
  azure:
    budget_limit: 500.0    # $500 USD
    time_period: "30d"     # 30 day period
  anthropic:
    budget_limit: 200.0    # $200 USD
    time_period: "1mo"     # 1 month period
  gemini:
    budget_limit: 50.0     # $50 USD
    time_period: "24h"     # 24 hour period