o3 Pro API Pricing
OpenAI · Frontier · Proprietary · released 2025-06. Prices in USD per 1 million tokens. Data snapshot: 2026-08-14.
- Input: $20.00 per 1M tokens
- Output: $80.00 per 1M tokens
- Batch API (input/output): $10.00 / $40.00
- Prompt-cache read: not published
- Context window: 200K
Cost per request by business use case
List price vs optimized (prompt caching on the cached input share, batch API for async workloads — only where the provider publishes those rates).
| Use case | Tokens (in/out) | Cost/req (list) | Cost/req (optimized) | Monthly @100K req |
|---|---|---|---|---|
| Support Ticket | 1,500 / 500 | $0.070 | $0.070 | $7.0K |
| Knowledge Q&A | 2,000 / 800 | $0.104 | $0.104 | $10.4K |
| Meeting Summary | 10,000 / 1,200 | $0.296 | $0.148 | $14.8K |
| Marketing Content | 2,500 / 1,800 | $0.194 | $0.194 | $19.4K |
| Coding Task | 3,000 / 2,000 | $0.220 | $0.220 | $22.0K |
| Invoice Processing | 1,500 / 600 | $0.078 | $0.039 | $3.9K |
| Call Summary | 2,000 / 700 | $0.096 | $0.048 | $4.8K |
| Agent Workflow | 6,000 / 3,000 | $0.360 | $0.360 | $36.0K |
These are list prices — real cost also depends on caching, batching, negotiated discounts, marketplace agreements, and existing contracts. Get a FinOps review from OptimNow or compare all models.