GPT-5.1-Codex-Mini API Pricing
OpenAI · Mid-tier · Proprietary · released 2025-11. Prices in USD per 1 million tokens. Data snapshot: 2026-08-14.
- Input: $0.25 per 1M tokens
- Output: $2.00 per 1M tokens
- Batch API (input/output): not published
- Prompt-cache read: $0.03
- Context window: 400K
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 | $0.0014 | $0.0012 | $118 |
| Knowledge Q&A | 2,000 / 800 | $0.0021 | $0.0018 | $179 |
| Meeting Summary | 10,000 / 1,200 | $0.0049 | $0.0047 | $468 |
| Marketing Content | 2,500 / 1,800 | $0.0042 | $0.0041 | $412 |
| Coding Task | 3,000 / 2,000 | $0.0047 | $0.0044 | $442 |
| Invoice Processing | 1,500 / 600 | $0.0016 | $0.0015 | $148 |
| Call Summary | 2,000 / 700 | $0.0019 | $0.0019 | $186 |
| Agent Workflow | 6,000 / 3,000 | $0.0075 | $0.0066 | $658 |
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.