All modelsCalculate what your real prompts cost on GPT-5.6 Luna
GPT-5.6 Luna
OpenAI model, released 9 Jul 2026.
$0.2
per 1M input tokens
$1.20
per 1M output tokens
$0.02
per 1M cached-read tokens
Price history
input $/1M output $/1M9 Jul 2026 → 17 Aug 2026
Specifications
- Lab
- OpenAI
- Released
- 9 Jul 2026
- Context window
- 1.1M tokens
- Max output
- 128k tokens
- Input modalities
- file, image, text
- Output modalities
- text
- Knowledge cutoff
- 2026-02-16
- Open source
- No
Benchmarks
| Benchmark | Category | Score | As of |
|---|---|---|---|
| LMArena (Chatbot Arena) | coding | 1464.5 (1455.4–1473.6) | 12 Aug 2026 |
| LMArena (Chatbot Arena) | overall | 1428.3 (1422.7–1433.9) | 12 Aug 2026 |
LMArena (Chatbot Arena) data © their authors, CC-BY-4.0
Frequently asked questions
How much does GPT-5.6 Luna cost?
GPT-5.6 Luna costs $0.2 per 1M input tokens and $1.20 per 1M output tokens (list price, updated every 6 hours).
What is GPT-5.6 Luna's context window?
GPT-5.6 Luna supports a 1.1M-token context window with up to 128k output tokens.