AI Model Comparison
GPT-5.6 Luna vs GPT-5.6 Terra
Compare API pricing for GPT-5.6 Luna and GPT-5.6 Terra. See input and output token prices and understand which model may cost less for your workload.
Pricing comparison
| Metric | GPT-5.6 Luna | GPT-5.6 Terra |
|---|---|---|
| Input / 1M | $0.20 | $2.00 |
| Output / 1M | $1.20 | $12.00 |
Which model is cheaper?
For input tokens, GPT-5.6 Luna costs 10.0× less than GPT-5.6 Terra.
For output tokens, GPT-5.6 Luna costs 10.0× less than GPT-5.6 Terra.
The best choice depends on your workload, token usage, model capabilities, and the quality requirements of your application.
Frequently asked questions
Which is cheaper, GPT-5.6 Luna or GPT-5.6 Terra?
Compare both input and output token prices because the cheaper model can depend on your workload.
How can I calculate the actual API cost?
Use the model calculator to enter your requests, input tokens, and output tokens.