BiWu.AiGPT-5.6 Luna API Pricing
GPT-5.6 Luna is an OpenAI model (1.05M context · 128K output). On the official OpenAI API, it costs $0.20 per 1M input tokens and $1.20 per 1M output tokens, with cached input at $0.02.
Prices checked Oct 10, 2026
Input / 1M tokens
$0.20
Output / 1M tokens
$1.20
Cached input / 1M
$0.02
Providers and plans
1
Official GPT-5.6 Luna API price
Source: OpenAI API. Prices per 1 million tokens.
| Token type | Price per 1M tokens |
|---|---|
| Input | $0.20 |
| Output | $1.20 |
| Cached input (cache read) | $0.02 |
| Cache write | $0.25 |
GPT-5.6 Luna prices by provider
Per-token prices listed for this model by the official API and other providers, per 1M tokens.
| Provider | Type | Input | Output | Cached input |
|---|---|---|---|---|
| OpenAI API | Official API | $0.20 | $1.20 | $0.02 |
GPT-5.6 Luna API pricing FAQ
How much does GPT-5.6 Luna cost per 1M tokens?
On the official OpenAI API, GPT-5.6 Luna costs $0.20 per 1M input tokens and $1.20 per 1M output tokens. Cached input costs $0.02 per 1M tokens. Prices checked Oct 10, 2026.
How much does prompt caching save on GPT-5.6 Luna?
Cached input is billed at $0.02 per 1M tokens, 90% less than the standard input price of $0.20. Writing to the cache costs $0.25 per 1M tokens.
What does a typical GPT-5.6 Luna API request cost?
A request with 10,000 input tokens and 1,000 output tokens costs about $0.0032 at the official rates ($0.20 × 0.01 + $1.20 × 0.001).
How does GPT-5.6 Luna compare with other OpenAI models?
1 of the 11 OpenAI models listed here has a lower output price than GPT-5.6 Luna. The cheapest is GPT-6 Luna at $0.50 per 1M output tokens.
Other OpenAI models
BiWu.Ai lists public API prices for reference and does not sell API access. Free and low-cost providers may have rate limits, queues, regional restrictions or changing terms. Check the provider's pricing page before you build on it.