Claude Code
Best for: Serious work on real repos
Anthropic's agent for your terminal, IDE and desktop. Reads the whole repo, runs commands and tests, and handles large multi-file changes well.
Visit Claude Code โ
FixKit AIHome / Use case
โI need a part, model or bracket designed but I don't know CAD.โ
AI can write the code behind parametric CAD models or drive 3D tools from a description. A detailed spec gets far better results than one line.
Design a parametric 3D model of [part]: dimensions [list], features [holes, fillets], material [type]. Expose the key measurements as variables at the top. Export a file I can open in a viewer. List any assumptions you made about dimensions. Stop before sending anything to a printer or manufacturer.
Fill in the [brackets]. Each prompt says when the AI should stop, so it doesn't wander off.
Agents people used for this: Claude, Claude Code, ChatGPT, Codex.
Inspired by real examples collected at agentusecases.ai.
Collected at AgentUseCases.ai.
Best for: Serious work on real repos
Anthropic's agent for your terminal, IDE and desktop. Reads the whole repo, runs commands and tests, and handles large multi-file changes well.
Visit Claude Code โBest for: Writing, analysis, code
Anthropic's assistant: strong writing, analysis and coding, with projects and artifacts for longer work.
Visit Claude โBest for: Delegating tasks as PRs
OpenAI's coding agent, in the CLI and in the cloud. Good at handing off well-scoped tasks that come back as pull requests.
Visit OpenAI Codex โBest for: Widest feature set
OpenAI's assistant with the broadest feature set: voice, images, search and a large app ecosystem.
Visit ChatGPT โ