Models › OpenAI
gpt-5.6-terra API pricing
$2.00 per 1M input tokens and $12.00 per 1M output tokens (prompts up to 272K tokens). Verified 2026-11-01 against the official price list.
Current prices
| Mode | Input | Output | Cache read | Cache write (30 min) | Cache write (12 h) |
|---|---|---|---|---|---|
| Standardprompts ≤ 272K tokens | $2.00 | $12.00 | $0.20 | $2.50 | $5.00 |
| Standardprompts > 272K tokens | $4.00 | $18.00 | $0.40 | $5.00 | $10.00 |
| Batch APIprompts ≤ 272K tokens | $1.00 | $6.00 | $0.10 | $1.25 | $2.50 |
| Batch APIprompts > 272K tokens | $2.00 | $9.00 | $0.20 | $2.50 | $5.00 |
| Flexprompts ≤ 272K tokens | $1.00 | $6.00 | $0.10 | $1.25 | $2.50 |
| Flexprompts > 272K tokens | $2.00 | $9.00 | $0.20 | $2.50 | $5.00 |
| Fast modeprompts ≤ 272K tokens | $4.00 | $24.00 | $0.40 | $5.00 | $10.00 |
| Fast modeprompts > 272K tokens | $8.00 | $36.00 | $0.80 | $10.00 | $20.00 |
USD per 1M tokens.
Price history
- 2026-10-21 Cache write (12 h) (Batch API, prompts ≤ 272K tokens): — → $2.50
- 2026-10-21 Cache write (12 h) (Batch API, prompts > 272K tokens): — → $5.00
- 2026-10-21 Cache write (12 h) (Fast mode, prompts ≤ 272K tokens): — → $10.00
- 2026-10-21 Cache write (12 h) (Fast mode, prompts > 272K tokens): — → $20.00
- 2026-10-21 Cache write (12 h) (Flex, prompts ≤ 272K tokens): — → $2.50
- 2026-10-21 Cache write (12 h) (Flex, prompts > 272K tokens): — → $5.00
- 2026-10-21 Cache write (12 h) (Standard, prompts ≤ 272K tokens): — → $5.00
- 2026-10-21 Cache write (12 h) (Standard, prompts > 272K tokens): — → $10.00
- 2026-10-21 Cache write (30 min) (Batch API, prompts ≤ 272K tokens): — → $1.25
- 2026-10-21 Cache write (30 min) (Batch API, prompts > 272K tokens): — → $2.50
- 2026-10-21 Cache write (30 min) (Fast mode, prompts ≤ 272K tokens): — → $5.00
- 2026-10-21 Cache write (30 min) (Fast mode, prompts > 272K tokens): — → $10.00
- 2026-10-21 Cache write (30 min) (Flex, prompts ≤ 272K tokens): — → $1.25
- 2026-10-21 Cache write (30 min) (Flex, prompts > 272K tokens): — → $2.50
- 2026-10-21 Cache write (30 min) (Standard, prompts ≤ 272K tokens): — → $2.50
- 2026-10-21 Cache write (30 min) (Standard, prompts > 272K tokens): — → $5.00
Source
- https://developers.openai.com/api/docs/pricing — official OpenAI price list, last verified 2026-11-01