Blended Model Cost Calculator
Estimate cost when routing traffic between two models.
Results update automatically as you type.
Result
$0.00161 blended per request
$161.00/month routing 80% to GPT-4o mini
- GPT-4o mini / request
- $0.000450
- GPT-5 / request
- $0.00625
- Blended / request
- $0.00161
- Blended / month
- $161.00
Many apps route easy requests to a cheap model and hard ones to a premium model. Set the split to see your blended per-request and monthly cost.
How this is calculated
This calculator uses the api cost formulas described in our methodology. All figures are estimates for planning; verify current pricing with each provider before relying on them.
Worked example (defaults)
With the default inputs above, here is the result:
Result
$0.00161 blended per request
$161.00/month routing 80% to GPT-4o mini
- GPT-4o mini / request
- $0.000450
- GPT-5 / request
- $0.00625
- Blended / request
- $0.00161
- Blended / month
- $161.00
Frequently asked questions
What is model routing?+
Sending each request to the cheapest model that can handle it, escalating to a stronger model only when needed.
How do I pick the split?+
Start from your data on how often the cheap model is sufficient, then tune based on quality metrics.