GPT-5.5 "Spud" leak hints at massive reasoning jump
Internal leaks and A/B test results for OpenAI's next-frontier model, codenamed "Spud," suggest a major leap in autonomous agency and complex reasoning. Users report seeing a high-performance "Crest Pro Alpha" checkpoint in ChatGPT that significantly outpaces current models in coding and multi-step tasks.
The "Spud" leak marks OpenAI's pivot toward high-value professional agency over creative consumer features, likely sacrificing Sora's compute to win the enterprise reasoning race. Internal memos suggest pre-training finished in late March 2026, with a release expected by early May. OpenAI reportedly halted Sora development to prioritize "Spud" GPU requirements, aiming to outperform Claude Opus 4.7 and Gemini 3.1 in coding-heavy tasks. Designed for high-value professional work, the model prioritizes reliability and deep intent understanding for autonomous agents. This release is a direct response to Anthropic's "Mythos" tier, signaling a new era of frontier model competition focused on agency.
DISCOVERED
3h ago
2026-04-20
PUBLISHED
3h ago
2026-04-20
RELEVANCE
AUTHOR
WorldofAI