Calculator › Price table › GPT-5.6 Luna
✓ Prices checked against official pricing pages on October 19, 2026GPT-5.6 Luna pricing
OpenAI's GPT-5.6 Luna (API model gpt-5.6-luna) list prices, what typical workloads cost, and how it compares.
$0.20per 1M input tokens
$0.02per 1M cached input tokens
$1.20per 1M output tokens
- Prompts over 272,000 tokens are billed at $0.40 input / $0.04 cached / $1.80 output per 1M tokens for the whole request.
- Batch processing: 50% off input and output ($0.10 / $0.60 per 1M tokens).
Source: OpenAI pricing, checked October 19, 2026.
What GPT-5.6 Luna costs for typical workloads
| Workload | Tokens per request | Per request | Per 1,000 requests |
|---|---|---|---|
| Chatbot reply | 1,500 input / 400 output tokens | $0.00078 | $0.78 |
| RAG answer | 8,000 input / 600 output tokens | $0.00232 | $2.32 |
| Agent step | 30,000 input (80% cached) / 800 output | $0.00264 | $2.64 |
| Summarize a long report | 60,000 input / 1,200 output tokens | $0.0134 | $13.44 |
| Classify a ticket | 400 input / 10 output tokens | $0.000092 | $0.092 |
GPT-5.6 Luna cost calculator
| Model | Input /1M | Output /1M | Per request | Per month |
|---|---|---|---|---|
| GPT-5.6 LunaOpenAI | $0.20 | $1.20 | $0.00078 | $23.40 |
| GPT-5 nanoOpenAI | $0.05 | $0.40 | $0.000235 | $7.05 |
| GPT-6 LunaOpenAI | $0.10 | $0.50 | $0.00035 | $10.50 |
| Claude Haiku 5.5Anthropic | $0.10 | $0.50 | $0.000455 | $13.65 |
| GPT-5.4 nanoOpenAI | $0.20 | $1.25 | $0.0008 | $24.00 |
| DeepSeek V4.1 FlashDeepSeek | $0.30 | $1.20 | $0.00093 | $27.90 |
| Gemini 3.1 Flash-LiteGoogle | $0.25 | $1.50 | $0.000975 | $29.25 |
| GPT-5 miniOpenAI | $0.25 | $2.00 | $0.00118 | $35.25 |
| Gemini 3.5 Flash-LiteGoogle | $0.30 | $2.50 | $0.00145 | $43.50 |
| Grok Build 0.1xAI | $1.00 | $2.00 | $0.0023 | $69.00 |
| Gemini 3.8 FlashGoogle | $0.75 | $3.75 | $0.00262 | $78.75 |
| Grok 4.3xAI | $1.25 | $2.50 | $0.00287 | $86.25 |
| GPT-5.4 miniOpenAI | $0.75 | $4.50 | $0.00292 | $87.75 |
| Claude Haiku 4.5Anthropic | $1.00 | $5.00 | $0.0035 | $105.00 |
| DeepSeek V4 ProDeepSeek | $1.32 | $3.96 | $0.00356 | $106.92 |
| Grok 4.5xAI | $2.00 | $6.00 | $0.0054 | $162.00 |
| Grok 4.7xAI | $2.00 | $6.00 | $0.0054 | $162.00 |
| GPT-5OpenAI | $1.25 | $10.00 | $0.00588 | $176.25 |
| Gemini 4 ArgonGoogle | $2.00 | $10.00 | $0.007 | $210.00 |
| GPT-6 SolOpenAI | $2.00 | $10.00 | $0.007 | $210.00 |
| GPT-6.1 SolOpenAI | $2.00 | $10.00 | $0.007 | $210.00 |
| Gemini 3.1 Pro (preview)Google | $2.00 | $12.00 | $0.0078 | $234.00 |
| GPT-5.6 TerraOpenAI | $2.00 | $12.00 | $0.0078 | $234.00 |
| Claude Sonnet 5Anthropic | $2.00 | $10.00 | $0.0091 | $273.00 |
| Claude Sonnet 5.5Anthropic | $2.00 | $10.00 | $0.0091 | $273.00 |
| GPT-5.4OpenAI | $2.50 | $15.00 | $0.00975 | $292.50 |
| GPT-5.6 SolOpenAI | $4.00 | $20.00 | $0.014 | $420.00 |
| Claude Opus 5.5Anthropic | $4.00 | $20.00 | $0.0182 | $546.00 |
| GPT-5.5OpenAI | $5.00 | $30.00 | $0.0195 | $585.00 |
| Claude Opus 5Anthropic | $5.00 | $25.00 | $0.0227 | $682.50 |
| GPT-6 AstraOpenAI | $10.00 | $50.00 | $0.035 | $1,050 |
| Claude Fable 5Anthropic | $10.00 | $50.00 | $0.0455 | $1,365 |
| Claude Fable 5.1Anthropic | $10.00 | $50.00 | $0.0455 | $1,365 |
30,000 requests a month · prices per 1M tokens, USD · month = 30 days
Alternatives to GPT-5.6 Luna
Cost per 1,000 chatbot replies (1,500 input / 400 output tokens).
- GPT-5 nano (OpenAI): $0.235, 3.3× cheaper
- GPT-6 Luna (OpenAI): $0.35, 2.2× cheaper
- Claude Haiku 5.5 (Anthropic): $0.455, 1.7× cheaper
- GPT-5.4 nano (OpenAI): $0.80, 1.0× more expensive
- DeepSeek V4.1 Flash (DeepSeek): $0.93, 1.2× more expensive
- Gemini 3.1 Flash-Lite (Google): $0.975, 1.3× more expensive
- GPT-5 mini (OpenAI): $1.18, 1.5× more expensive
- Gemini 3.5 Flash-Lite (Google): $1.45, 1.9× more expensive
Other OpenAI models
- GPT-6 Astra · $10.00 / $50.00
- GPT-6.1 Sol · $2.00 / $10.00
- GPT-6 Sol · $2.00 / $10.00
- GPT-6 Luna · $0.10 / $0.50
- GPT-5.6 Sol · $4.00 / $20.00
- GPT-5.6 Terra · $2.00 / $12.00
- GPT-5.5 · $5.00 / $30.00
- GPT-5.4 · $2.50 / $15.00
- GPT-5.4 mini · $0.75 / $4.50
- GPT-5.4 nano · $0.20 / $1.25
- GPT-5.2 · $1.75 / $14.00
- GPT-5 · $1.25 / $10.00
- GPT-5 mini · $0.25 / $2.00
- GPT-5 nano · $0.05 / $0.40
- GPT-4.1 · $2.00 / $8.00
- GPT-4.1 mini · $0.40 / $1.60
- GPT-4.1 nano · $0.10 / $0.40
- GPT-4o · $2.50 / $10.00
- GPT-4o mini · $0.15 / $0.60
- o3 · $2.00 / $8.00
- o4-mini · $1.10 / $4.40