Based on 6 capability dimensions
3 versions
Multimodal Diffusion Transformer architecture. Best text in images of any SD model. Improved composition and detail.
Higher resolution images. Better image composition and faces. Two stage model pipeline for better quality.
Open source image generation released publicly. Runs locally on consumer hardware. Sparked the open source AI art revolution.
5 versions
GPT-5.5 is described as OpenAI's smartest model yet, offering faster performance and increased capabilities. It is built for complex tasks including coding, research, and data analysis across tools.
Reasoning model that thinks before answering. Excels at complex math, science and coding problems.
Omni model. Faster and cheaper than GPT-4. Real-time audio and vision. Emotional voice responses.
Massive capability jump. Multimodal inputs introduced. Passed bar exam in top 10 percentile.
Initial ChatGPT launch. Shocked the world with conversational AI. Reached 1 million users in 5 days.