Compatibility alias that routes to GPT 5.6 Luna, the latest supported GPT Luna model.
Specification
most-agreed values
Context
1.1M
Max output
128K
Released
2026-09-11
Knowledge cutoff
2026-02-16
Retires
—
Open weights
no
Input
text, image, pdf
Output
text
Price
US dollars per million tokens · most-agreed
Input
$0.10
Output
$0.50
Cache read
$0.01
Cache write
$0.125
Available from 3 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| kilo | $0.10 | $0.50 | $0.01 | $0.125 | 1.1M | 128K | — |
| nano-gpt | $0.10 | $0.50 | $0.01 | $0.125 | 1.1M | 128K | — |
| openrouter | $0.10 | $0.50 | $0.01 | $0.125 | 1.1M | 128K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-12 | kilo | Cache read | $0.02 |
| 2026-09-23 | kilo | Cache read | $0.01 |
| 2026-09-12 | nano-gpt | Cache read | $0.02 |
| 2026-09-25 | nano-gpt | Cache read | $0.01 |
| 2026-09-12 | openrouter | Cache read | $0.02 |
| 2026-09-19 | openrouter | Cache read | $0.02 |
| 2026-09-23 | openrouter | Cache read | $0.01 |
| 2026-10-10 | openrouter | Cache read | $0.01 |
| 2026-09-12 | kilo | Cache write | $0.25 |
| 2026-09-23 | kilo | Cache write | $0.125 |
| 2026-09-12 | nano-gpt | Cache write | $0.25 |
| 2026-09-25 | nano-gpt | Cache write | $0.125 |
| 2026-09-12 | openrouter | Cache write | $0.25 |
| 2026-09-19 | openrouter | Cache write | $0.25 |
| 2026-09-23 | openrouter | Cache write | $0.125 |
| 2026-10-10 | openrouter | Cache write | $0.125 |
| 2026-09-12 | kilo | Input | $0.20 |
| 2026-09-23 | kilo | Input | $0.10 |
| 2026-09-12 | nano-gpt | Input | $0.20 |
| 2026-09-25 | nano-gpt | Input | $0.10 |
| 2026-09-12 | openrouter | Input | $0.20 |
| 2026-09-19 | openrouter | Input | $0.20 |
| 2026-09-23 | openrouter | Input | $0.10 |
| 2026-10-10 | openrouter | Input | $0.10 |
| 2026-09-12 | kilo | Output | $1.20 |
| 2026-09-23 | kilo | Output | $0.50 |
| 2026-09-12 | nano-gpt | Output | $1.20 |
| 2026-09-25 | nano-gpt | Output | $0.50 |
| 2026-09-12 | openrouter | Output | $1.20 |
| 2026-09-19 | openrouter | Output | $1.20 |
| 2026-09-23 | openrouter | Output | $0.50 |
| 2026-10-10 | openrouter | Output | $0.50 |
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