GPT-5.6 Sol ships with five reasoning levels from "Light" to "xhigh," plus "Max" and "Ultra" modes that deploy multiple sub-agents in parallel. OpenAI's Vaibhav Srivastav recommends starting low and only scaling up when needed. The article OpenAI staffer maps out which of GPT-5.6 Sol's five reasoning levels fits which task complexity appeared first on The Decoder .
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