OpenAI · Pricing & cost calculator
Reasoning at a fraction of o1 cost. Good for coding + well-scoped problems.
Input tokens
$0.00300
per 1,000 tokens
Output tokens
$0.01200
per 1,000 tokens
Context window
128,000
tokens max
Prices sourced from OpenAI's public API rate card. Last reviewed April 2026.
Drag the sliders. The math runs in your browser.
Per request
$0.010500
at 1,500/500 tokens
Monthly spend
$105
10,000 requests × $0.010500
o1-mini costs $0.00300 per 1,000 input tokens and $0.01200 per 1,000 output tokens as of the current OpenAI API pricing.
o1-mini is already one of the cheapest options in its tier. For budget-critical workloads, consider caching common requests to save more.
The three highest-leverage ways: (1) route requests to a cheaper model where possible, (2) cache identical requests so you don't pay twice for the same response, (3) set hard monthly budgets that block requests when exceeded. TrackCost automates all three at the gateway layer.
o1-mini supports up to 128,000 tokens of context. For comparison with other models, use the TrackCost savings calculator.