AI Productivity Pulse

OpenAI GPT-5.5 Spud Release

OpenAI GPT-5.5 Spud Release

Key Questions

What is GPT-5.5 also known as?

GPT-5.5 is referred to as the Spud release and powers ChatGPT 5.5. It excels in complex knowledge work, coding, office, and agentic tasks.

How does GPT-5.5 compare to GPT-5.4?

GPT-5.5 handles tasks with fewer tokens at the same speed as 5.4, offering higher autonomy. Early evals on LiveBench are incoming.

What powers the Codex superapp?

GPT-5.5 powers the Codex superapp for enhanced productivity. It shifts from chatbot to full agent capabilities.

What are the strengths of ChatGPT 5.5?

ChatGPT 5.5 excels in agent AI coding and digital productivity tasks. Tests show improved performance in real-world applications.

Is GPT-5.5 a chatbot or an agent?

OpenAI's GPT-5.5 is no longer just a chatbot; it's an agent optimized for complex workflows. It revolutionizes coding and productivity tools.

GPT-5.5/ChatGPT 5.5 excels complex knowledge work/coding/office/agentic tasks fewer tokens same speed as 5.4 higher autonomy; early evals LiveBench incoming; powers Codex superapp productivity.

Sources (3)
Updated Apr 25, 2026