teaser

1 article tagged with teaser

April 23, 2026
model releaseOpenAI+1

OpenAI teases GPT-5.5 in cryptic Base64-encoded message 'NS41'

OpenAI posted the cryptic message 'NS41' on X, which decodes to '5.5' through Base64 encoding or mathematical interpretation. The teaser suggests an imminent announcement for GPT-5.5, though no release date, pricing, or technical specifications have been disclosed.