Models › OpenAI
gpt-5.6-luna API pricing
$0.20 per 1M input tokens and $1.20 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 | $0.20 | $1.20 | $0.02 | $0.25 | $0.50 |
| Standardprompts > 272K tokens | $0.40 | $1.80 | $0.04 | $0.50 | $1.00 |
| Batch APIprompts ≤ 272K tokens | $0.10 | $0.60 | $0.01 | $0.125 | $0.25 |
| Batch APIprompts > 272K tokens | $0.20 | $0.90 | $0.02 | $0.25 | $0.50 |
| Flexprompts ≤ 272K tokens | $0.10 | $0.60 | $0.01 | $0.125 | $0.25 |
| Flexprompts > 272K tokens | $0.20 | $0.90 | $0.02 | $0.25 | $0.50 |
| Fast modeprompts ≤ 272K tokens | $0.40 | $2.40 | $0.04 | $0.50 | $1.00 |
| Fast modeprompts > 272K tokens | $0.80 | $3.60 | $0.08 | $1.00 | $2.00 |
USD per 1M tokens.
Price history
- 2026-10-21 Cache write (12 h) (Batch API, prompts ≤ 272K tokens): — → $0.25
- 2026-10-21 Cache write (12 h) (Batch API, prompts > 272K tokens): — → $0.50
- 2026-10-21 Cache write (12 h) (Fast mode, prompts ≤ 272K tokens): — → $1.00
- 2026-10-21 Cache write (12 h) (Fast mode, prompts > 272K tokens): — → $2.00
- 2026-10-21 Cache write (12 h) (Flex, prompts ≤ 272K tokens): — → $0.25
- 2026-10-21 Cache write (12 h) (Flex, prompts > 272K tokens): — → $0.50
- 2026-10-21 Cache write (12 h) (Standard, prompts ≤ 272K tokens): — → $0.50
- 2026-10-21 Cache write (12 h) (Standard, prompts > 272K tokens): — → $1.00
- 2026-10-21 Cache write (30 min) (Batch API, prompts ≤ 272K tokens): — → $0.125
- 2026-10-21 Cache write (30 min) (Batch API, prompts > 272K tokens): — → $0.25
- 2026-10-21 Cache write (30 min) (Fast mode, prompts ≤ 272K tokens): — → $0.50
- 2026-10-21 Cache write (30 min) (Fast mode, prompts > 272K tokens): — → $1.00
- 2026-10-21 Cache write (30 min) (Flex, prompts ≤ 272K tokens): — → $0.125
- 2026-10-21 Cache write (30 min) (Flex, prompts > 272K tokens): — → $0.25
- 2026-10-21 Cache write (30 min) (Standard, prompts ≤ 272K tokens): — → $0.25
- 2026-10-21 Cache write (30 min) (Standard, prompts > 272K tokens): — → $0.50
Source
- https://developers.openai.com/api/docs/pricing — official OpenAI price list, last verified 2026-11-01