I put GPT-5.5 through a 10-round test: It scored 93/100, losing points only for exuberance

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ZDNET's key takeaways

• GPT-5.5 delivers polished, useful answers across tasks.
• Strong performance across writing, coding, and reasoning tasks.
• Overeagerness hurts accuracy and instruction following.

OpenAI has released GPT-5.5, which can be reductively described as better and faster than GPT-5.4. The new large language model shows improvements in agentic coding, conceptual clarity, scientific research ability, and accuracy during knowledge work.

This release follows closely on the heels of the introduction of ChatGPT Images 2.0 earlier this week, which combines AI intelligence with image generation. And if it also feels like we just discussed the release of GPT-5.4, you're not wrong.

Also: ChatGPT just made it easy to find and edit all the AI images you've ever generated

As the following chart shows, the release cadence for OpenAI releases has ...