Leaked Codex update suggests GPT-5.5s uses 'cavemanmaxxed' CoT reasoning, reducing tokens by up to 80%?

Leaked Codex update suggests GPT-5.5s uses 'cavemanmaxxed' CoT reasoning, reducing tokens by up to 80%.

Technique strips verbose chain-of-thought explanations to minimal logic steps, potentially cutting API costs by 5–10x?

Technique strips verbose chain-of-thought explanations to minimal logic steps, potentially cutting API costs by 5–10x.

compressed reasoning may miss edge cases or reduce transparency.

Media & Culture

r/Singularity May 11, 2026

⚡A Reddit leak suggests OpenAI’s next model cuts token costs by 5x using aggressive chain-of-thought reasoning.

Deep Dive

Key Points

Leaked Codex update suggests GPT-5.5s uses 'cavemanmaxxed' CoT reasoning, reducing tokens by up to 80%.
Technique strips verbose chain-of-thought explanations to minimal logic steps, potentially cutting API costs by 5–10x.
Unconfirmed rumor raises safety concerns: compressed reasoning may miss edge cases or reduce transparency.

If real, this could slash AI costs 5x, making advanced reasoning affordable for mainstream apps.