GPT-5.6 Terra Pro API Pricing
OpenAI · Mid-tier · Proprietary · released 2026-07. Prices in USD per 1 million tokens. Data snapshot: 2026-08-14.
- Input: $1.00 per 1M tokens
- Output: $6.00 per 1M tokens
- Batch API (input/output): $1.00 / $6.00
- Prompt-cache read: $0.10
- Context window: 1M
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 | $0.0045 | $0.0037 | $369 |
| Knowledge Q&A | 2,000 / 800 | $0.0068 | $0.0055 | $554 |
| Meeting Summary | 10,000 / 1,200 | $0.017 | $0.016 | $1.6K |
| Marketing Content | 2,500 / 1,800 | $0.013 | $0.013 | $1.3K |
| Coding Task | 3,000 / 2,000 | $0.015 | $0.014 | $1.4K |
| Invoice Processing | 1,500 / 600 | $0.0051 | $0.0047 | $469 |
| Call Summary | 2,000 / 700 | $0.0062 | $0.0060 | $602 |
| Agent Workflow | 6,000 / 3,000 | $0.024 | $0.020 | $2.0K |
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.