I will build a small custom ai tool or workflow automation app


About this gig
Most AI demos work once. Then a real user pastes messy data, the API fails, the output format breaks, or nobody knows how to deploy it. That's why I build small AI tools that are meant to survive real use.
Good fits:
- Essay or document feedback tools
- Scoring and evaluation systems
- Content analyzers
- Data extraction tools
- Internal assistants
- Simple AI dashboards
- AI features for an existing app
What I deliver:
- A working AI tool built around your use case
- Clean UI when needed
- AI API integration with Gemini, OpenAI-style APIs, Claude, or similar models
- Error handling and fallback behavior
- Basic documentation
- Deployment support depending on the package
What makes this different:
- I do not just paste an API into a page.
- I design around weird inputs, rate limits, failed responses, and unclear user behavior.
- I can build bilingual English/Spanish tools.
- My portfolio includes a live IELTS essay feedback app with rubric-based analysis, quote-based feedback, multilingual explanations, and model verification.
Message me before ordering if your workflow is unclear. I will tell you what is realistic, what package fits, and what I would avoid.
Get to know Nahuel
Custom AI tools and automations for small workflows
- FromUruguay
- Member sinceMar 2025
Languages
English, Spanish
My Portfolio
FAQ
Can you integrate AI into my existing app?
Yes, if the app uses a stack I can work with. Send the tech stack, repository situation, and what the AI feature should do before ordering.
Which AI models can you use?
I can work with Gemini, OpenAI-style APIs, Claude-style APIs, and some open-source or API-compatible models. The best choice depends on budget, quality needs, and speed.
Do I need to provide an API key?
Usually yes for production use. I can help you understand where to create the key, but ongoing API usage costs belong to the buyer.
Is the Basic package enough for a real business tool?
Basic is for a small prototype. If real users will depend on the tool, choose Standard or ask me for a custom quote.
Do you offer fine-tuning or model training?
Not in this gig. This gig focuses on practical AI integrations and tools using existing models through APIs.
What do you need from me before starting?
I need the workflow, example inputs, desired output, target users, preferred AI provider, and any existing app or deployment details.
Does Basic include database or storage?
No. Basic is for a small AI prototype with one clear workflow. Database, storage, login, dashboards, or persistent history belong in Standard/Premium unless agreed before ordering.

