🤖 GPT-5.5 “Spud” launches with focus on long agent tasks

OpenAI released GPT-5.5, also called Spud, with upgrades in agent coding and tool use. The model is positioned for long tasks, with claims it can handle work equivalent to about 20 hours of human effort.

On SWE Pro it scores 58.6%, below Opus 4.7 at 64.3%. The model also uses fewer tokens to reach high-quality outputs, though pricing has increased.

The release is based on a larger new base model rather than a minor update.

📊 @tech