gpt-5.6-luna API Pricing
gpt-5.6-luna on OpenAI costs $0.20 per 1M input tokens and $1.20 per 1M output tokens (as of ).
| Input | $0.20 / 1M tokens |
|---|---|
| Output | $1.20 / 1M tokens |
| Cached input (read) | $0.02 |
| Cache write | $0.25 |
| Batch input / output | $0.10 / $0.60 |
| Above 200K tokens (input / output) | — |
| Context window | 922K tokens |
| Max output | 128K tokens |
| Supports | vision, tool calling, reasoning, prompt caching |
| Deprecation date | None listed |
| API model id | gpt-5.6-luna |
| In our records since |
What it costs for common jobs
Estimated from the list price above (no caching or batch discount).
| Job | Estimated cost |
|---|---|
| 1,000 chat replies (2,000 tokens in, 500 out each) | $1.00 |
| Summarising 100 long documents (50,000 in, 1,000 out each) | $1.12 |
| 1 million classification calls (300 in, 5 out each) | $66.00 |
Try your own numbers in the LLM API cost calculator.
Price history
- Between and : batch input price changed from $0.50 to $0.10 per 1M tokens.
- Between and : cached input price changed from $0.10 to $0.02 per 1M tokens.
- Between and : output price changed from $6.00 to $1.20 per 1M tokens.
- Between and : input price changed from $1.00 to $0.20 per 1M tokens.
Similarly priced models
| Model | Provider | Input / 1M | Output / 1M | Cached input / 1M | Context |
|---|---|---|---|---|---|
| gpt-5.4-nano | OpenAI | $0.20 | $1.25 | $0.02 | 272K |
| gpt-4o-mini | OpenAI | $0.15 | $0.60 | $0.07 | 128K |
| gpt-4o-mini-audio-preview- | OpenAI | $0.15 | $0.60 | — | 128K |
| gpt-4o-mini-search-preview | OpenAI | $0.15 | $0.60 | $0.07 | 128K |
| gpt-5-mini | OpenAI | $0.25 | $2.00 | $0.03 | 272K |
| gpt-6-luna | OpenAI | $0.10 | $0.50 | $0.01 | 922K |
| gpt-4.1-mini | OpenAI | $0.40 | $1.60 | $0.10 | 1.04758M |
| gpt-4.1-nano | OpenAI | $0.10 | $0.40 | $0.03 | 1.04758M |