I will build custom gpt actions openai assistant and ai automation


About this gig
Need an AI that actually understands your business? Generic ChatGPT isn't enough for professional results. I will build a Personalized Custom GPT (AI Agent) tailored to your specific goals.
What I offer:
- Advanced Prompting: Unique personality and precise behavioral logic.
- Knowledge Integration: Ill upload your PDFs/Docs so the AI learns your data (RAG).
- Tool Access: Web browsing, DALL-E 3, and Code Interpreter setup.
- Custom Actions: Connecting your GPT to external APIs (Premium).
- Testing: I stress-test the model to ensure accuracy and minimize hallucinations.
Ideal for:
- Businesses: Support bots, lead gen, or internal training.
- Creators: Content assistants and SEO experts.
- Professionals: Research tools for legal, medical, or tech data.
The Process:
- Consultation: We define the goal and review your data.
- Build: I craft the instructions and index your files.
- Review: Fine-tuning based on your feedback.
- Delivery: You get a ready-to-use link.
Note: You must have a ChatGPT Plus subscription to use Custom GPTs.
Let's automate your workflow. Order now and get your specialized AI agent!
Get to know Alex Nexus
AI Automation and Private LLM Expert
- FromRomania
- Member sinceApr 2026
- Avg. response time2 days
Languages
English, Romanian
Other AI Development Services I Offer
FAQ
Do I need to provide my own OpenAI API key?
For a standard Custom GPT (built inside ChatGPT Plus), you don't need an API key. However, if we build an OpenAI Assistant for your website or a complex custom pipeline, you will need to provide an OpenAI API key. I will guide you step-by-step on how to set it up securely.
Is my proprietary business data safe and secure?
Absolutely. If we use Custom GPTs or OpenAI Assistants via the API, OpenAI states that data sent through the API is NOT used to train their models. Your business documents, prompts, and customer interactions remain strictly private to your account.
What exactly is a "Custom Action" in the Premium package?
A Custom Action allows the GPT to talk to the outside world. Instead of just chatting, the AI can trigger real-world tasks—like fetching data from your CRM, sending an automated email, updating a Google Sheet, or communicating with a custom Python FastAPI backend.
Can you integrate the AI with my specific CRM or internal database?
Yes! As long as your CRM or software has an accessible API (like HubSpot, Salesforce, Notion, or custom databases), I can build the custom schemas and webhooks required to connect your AI assistant to it.

