Models & Releases

OpenAI's GPT-5.6 rumor: 1.5M-token context window could redefine AI workflows

1.5 million tokens in a single prompt – what could you do with that?

Deep Dive

A new rumor from Knightli suggests OpenAI's GPT-5.6 may have a 1.5 million token context window. The original post asks whether subscription plans will see a proportional increase and expresses hope for a larger context window. No further details are confirmed.

Key Points
  • Rumored 1.5M token context window for GPT-5.6 – more than 10x current GPT-5 limit of 128K.
  • If confirmed, would rival Google's Gemini 1.5 Pro (1M tokens) as the largest API context window.
  • OpenAI has not commented; implications for pricing and subscription tiers remain unclear.

Why It Matters

A 1.5M context window could eliminate prompt chunking, enabling AI to analyze entire codebases, legal libraries, or research corpora in one go.