OpenAI o3 API Pricing
OpenAI · 256K context window · Best for advanced reasoning, math, scientific tasks
Last updated April 25, 2026 · Data refreshed every 6 hours
Input
$60.00
Output
$240.00
Context
256K
Vendor
OpenAI
All prices in USD per million tokens. Live as of April 25, 2026.
Cost Examples
| Workload | Tokens | Cost |
|---|---|---|
| 1M chat messages (~500 tok in / 500 tok out) | 1000M | $150000.00 |
| Process 10K PDFs (~2K tok each, output 200 tok) | 22M | $1680.00 |
| Generate 100K tweets (~280 tok out, 50 tok prompt) | 33M | $7020.00 |
| 1 chatbot conversation per user × 10K users (~5K tok each) | 50M | $7500.00 |
| Summarize 1K technical articles (~5K in / 500 out) | 6M | $420.00 |
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