alt Hacker NewsWtf is GPT-6 Sol, I though GPT-6 is Astra?
Replies
ssl-3 • today at 9:51 PM
It's just another step on the timeline.
GPT-5.6-Sol, GPT-5.6-Terra, and GPT-5.6-Luna were released in July of 2026.
The first release from the GPT-6 series was GPT-6-Astra. GPT-6-Astra happened on around September 3, 2026, and the previously-mentioned GPT-5.6-* widgets remained available.
Today, September 22, 2026, we now also have GPT-6-Sol and GPT-6-Luna added into the mix.
As I write this, all of the model identifiers I've mentioned are available to select for use within Codex.
hersko • today at 7:49 PM
Just released 6-Sol and 6-luna a few hours ago
Number is generation Name is the size (Luna smallest to Astra largest)