Will's Blog: OpenAI says "GPT-5.5 matches GPT-5.4 per-token latency in real-world serving, while performing at a much higher level of intelligence" (OpenAI)

23 April 2026

OpenAI says "GPT-5.5 matches GPT-5.4 per-token latency in real-world serving, while performing at a much higher level of intelligence" (OpenAI)

OpenAI:
OpenAI says “GPT-5.5 matches GPT-5.4 per-token latency in real-world serving, while performing at a much higher level of intelligence” — A new class of intelligence for real work — We're releasing GPT-5.5, our smartest and most intuitive to use model yet …

Posted from: this blog via Microsoft Power Automate.