openai
OpenAI: o3 API Pricing
OpenAI: o3 costs $2.00 per 1M input tokens and $8.00 per 1M output tokens (cache reads: $0.500). Context window: 200K. Prices verified 2026-08-23 · source
Input / 1M tokens
$2.00
Output / 1M tokens
$8.00
Context window
200K
Max output
100K
What would OpenAI: o3 cost you per month?
| Workload | Requests/mo | Avg tokens (in/out) | Est. monthly cost |
|---|---|---|---|
| Light chatbot | 10,000 | 800 / 400 | $48.00 |
| Coding agent | 5,000 | 8,000 / 2,000 | $160.00 |
| RAG pipeline | 30,000 | 4,000 / 500 | $360.00 |
| Doc summarizer | 2,000 | 20,000 / 1,000 | $96.00 |
Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.
About OpenAI: o3
o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....