GPT-5.6 Luna API pricing (OpenAI)
$0.2 input / $1.2 output per 1M tokens. Context —; our tier 1; verified; last checked 2026-10-13.
| Input $/1M | Output $/1M | Context | Tier | Verified | Checked |
|---|---|---|---|---|---|
| $0.2 | $1.2 | — | 1 | verified | 2026-10-13 |
Official source: https://platform.openai.com/docs/pricing. Provider page: OpenAI API pricing.
Example monthly bills by job
| Job | Example volume | This model |
|---|---|---|
| Simple Q&A / chat | 10M in / 2M out | $4.40 |
| Coding | 20M in / 5M out | Does not qualify (needs tier ≥2) |
| Long documents | 100M in / 2M out | Does not qualify (needs tier ≥2, context ≥500,000) |
| Hard reasoning | 10M in / 10M out | Does not qualify (needs tier ≥3) |
Cost only, not quality. “Tier” is our rough capability judgment (1 = light, 4 = frontier), not a benchmark. Standard pay-as-you-go text prices only.
See every model on the full price table, all models, or see what you'd save switching from GPT-5.6 Luna in the savings calculator.