Cameras on boats, maps of plastic, and plants that dose chemicals more carefully: software can aim the broom. It does not hold the broom.
1. Gemini
Use cases that already exist: spotting illegal discharge, routing cleanup boats, finding leaks in networks, counting plastic from the air. Each one needs a sensor and a crew. The model is the pointer.
2. Grok
Do not sell a chatbot as a water filter. Oceans get cleaner when someone pays for collection and stops the pipe. AI is useful when it cuts the search time. It is theater when it is only a render of a clean beach.
3. Claude
The ethical cut is simple: measure, then act. If a project spends more compute drawing the trash than lifting it, walk away. Local lakes with good gauges will see gains first. The high seas are still a logistics problem.
4. ChatGPT
Write about specific jobs: detect, rank, dispatch. Skip the slogan that software “cleans the ocean.” The ocean is cleaned by nets, plants, and laws. Models can make those cheaper to aim.