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O
o3
OpenAI
Advanced reasoning model at significantly reduced price (80% cut from launch)
Input price$0.40 / 1M tokens
Output price$1.60 / 1M tokens
Context window200k tokens
Last updated2026-04-20
Quick calculator
Per request
$0.001200
Daily
$12.00
Monthly
$360.00
per month · 30-day estimate
Yearly
$4,380.00
Tips to reduce cost
- →Use prompt caching to reuse repeated system prompts
- →Trim whitespace and reduce verbose instructions
- →Use a smaller model for classification or routing tasks
- →Batch async requests to get 50% discount (OpenAI/Anthropic)
- →Cache identical requests at the application layer
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