Every line, version by version
GPT-6 astra vs GPT-6 luna: prices per token, context window, benchmark scores, and what changed between the two versions.
Prices are read live from the provider pricing pages, so this table cannot go stale.
| Version | Tier | Status | Released | Input | Output | Cached | Context | Blended /1M | Sample /mo |
|---|---|---|---|---|---|---|---|---|---|
GPT-6 astraLatest 6 Price your own usage | Flagship | Active | 2026-09-03 | $10.00 | $50.00 | $1.00 | 1,050K | $30.00 | $57.50Long context ≥272,000 |
GPT-6 lunaCheapest 6 Price your own usage | Lite | Active | — | $0.100 | $0.500 | $0.010 | 1,050K | $0.300 | $0.575Long context ≥272,000 |
Sample cost = 1M input + 500K output tokens per month at list price. A model with a long-context band is priced on that band — the rule is printed in the row. Use the calculator below for your own workload.
Only one version of this line has a verifiable score set so far, so there is nothing to compare it against yet.
Adjust the monthly volume — every version of the line recomputes instantly.
List price only: cached input, batch discounts and off-peak rates are not included. The sample column prices 1M input + 500K output tokens per month.