LaunchAI ModelsJuly 13, 2026
OpenAI launches GPT-5.6 with Sol, Terra, Luna

GPT-5.6 families Sol, Terra, and Luna are now generally available on Amazon Bedrock and in Codex. Luna outperforms GPT-5.5 at its highest reasoning setting while costing 25x less.
15 sources
OpenAI GPT-5.6 Sol, Terra, and Luna are now generally available on Amazon Bedrockaws.amazon.com
Previewing GPT-5.6 Sol: a next-generation modelopenai.com
Summary of METR's predeployment evaluation of GPT-5.6 Solmetr.org
RT @nickbaumann_: a la this:x.com
Codex just got better for developersyoutube.com
[AINews] OpenAI launches GPT 5.6 Sol/Terra/Luna, Codex becomes ChatGPT superapplatent.space
GPT 5.6 Has 72 Possible Configurations. What's A Good Default?sebastianraschka.com
OpenAI GPT-5.6: AI Could Do Anything, Then It Met ARC-AGI-3thealgorithmicbridge.com
Quoting OpenAIsimonwillison.net
This was one of those impressive AI thresholds for me. I gave GPT-5.6 Sol in Codex control over my c...bsky.app
OpenAI unveils GPT-5.6 Sol, Terra and Luna models — but only accessible to limited preview partners for now, per US Govventurebeat.com