CHATGPT AGENCY TO PUT AI INSIDE YOUR BUSINESS
Hack'celeration is a ChatGPT agency that turns OpenAI's models into real business assets. The team ships Custom GPTs for non-technical teams, Assistants and Responses API integrations for product, and ChatGPT Enterprise rollouts for 50 to 500 employees. Average outcomes: 45% less time on support handling, 28% faster sales cycles, full audit trail of every prompt.
Want ChatGPT actually used by your team, not just licensed?
Why hire a ChatGPT agency that delivers real adoption
Most companies bought ChatGPT Enterprise or Team licenses in 2024-2025. Adoption is still under 30% in most of them. The reason is simple: people do not know what to ask. Hack'celeration closes that gap with role-specific Custom GPTs, prompt libraries, internal documentation hooks, and 4 to 6 live training sessions tailored to each department.
On the product side, the team ships OpenAI API integrations: Assistants, Responses API, function calling, vision, code interpreter, file search. 50+ projects delivered in 2024-2025, on Node, Python and direct REST. The team also covers Azure OpenAI for clients that need EU data residency or Microsoft contracts. A field note: cost on OpenAI dropped 70% between GPT-4 and GPT-4o-mini, but most teams still run pricey GPT-4 calls because no one re-audited prompts. A 1-day prompt audit pays for itself in days. Crosslinks: Anthropic agency, OpenAI agency, AI agent agency, AI agency.
What the team delivers on ChatGPT and OpenAI
ChatGPT Enterprise rollout. SSO via Okta or Entra ID, workspace setup, role assignment, data retention policies. The team builds 8 to 15 Custom GPTs for your teams (sales, support, marketing, ops, RH) with grounded prompts and references to your internal docs uploaded as files or via RAG. Adoption tracking via the admin API.
Custom GPTs and prompt libraries. A Custom GPT is only as useful as its prompt and its knowledge base. The team writes clear system prompts, uploads relevant docs (limited to 20 files per GPT, hence the curation matters), and tests against 30 to 50 real user questions per GPT. Quick win: a sales GPT that pulls from your latest deck and your top 10 customer case studies turns junior reps into account executives within days.
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OpenAI API integration. Assistants API or Responses API for stateful agents, function calling for tool use, vision for document analysis, structured outputs (JSON mode, schemas) for reliable parsing. Streaming for chat UX, batch API for offline jobs at 50% cost. The team picks GPT-4o for quality, GPT-4o-mini for cost, GPT-5 for reasoning-heavy tasks.
RAG, fine-tuning, evals. RAG pipelines on Pinecone, Weaviate, Qdrant or pgvector with hybrid search (BM25 + embeddings). Fine-tuning when needed (rare for most B2B use cases). Eval suites via Promptfoo and OpenAI Evals to prevent prompt regressions. The team also implements prompt caching where applicable to cut input token cost by up to 50%. Crosslink: LangChain agency for orchestration patterns.
How the team rolls ChatGPT out in 6 weeks
Week 1: audit of current usage (if any), identification of top 5 use cases per department, security review. Week 2: ChatGPT Enterprise or Team setup with SSO, workspace structure, retention policies. Week 3 to 4: first 6 to 8 Custom GPTs built and tested with pilot users. Week 5: API integrations on the 1 or 2 priority product use cases (Assistants or Responses API, function calling, RAG if needed). Week 6: company-wide training (4 sessions of 1 hour, recorded), monthly office hours scheduled. Quick win: build a Custom GPT that answers HR questions from your handbook. Saves 3 to 5 hours per week of HR time and gets non-technical staff using ChatGPT correctly.
ChatGPT use cases by department
Sales. Custom GPTs for proposal writing, account research, email drafts, call summaries. Integration with HubSpot (HubSpot agency) and Salesforce (Salesforce agency) via Assistants API. Sales reps shave 6 to 10 hours per week on admin work.
Customer support. Assistants that read your help docs, draft replies in Zendesk or Intercom, and escalate complex tickets to a human. Tier 1 deflection rates of 35 to 55% on common questions, with maintained CSAT when human handoff is clean. Crosslink: Zendesk agency.
Marketing, ops, RH. Custom GPTs for editorial workflows, briefs, social posts, RH onboarding, internal policy questions. The team also ships internal Slack bots powered by GPT-4o-mini that answer questions from your Confluence or Notion in real time. Crosslink: Notion agency, AI agent agency.
A ChatGPT agency that tracks every release
OpenAI ships fast. 2025 brought GPT-5, the new Responses API, Realtime API for voice, computer use, and a re-priced Assistants API. The team tracks each release and updates client integrations within 1 to 2 weeks of GA. Old code on the legacy Assistants v1 API still runs at most clients today; migration to Responses API often cuts cost by 30 to 50% and latency by 25 to 40%.
The team also builds multi-provider routers: ChatGPT for general chat and image generation, Claude for long-document reasoning, Gemini for multimodal video, DeepSeek for high-volume cheap text. Single SDK abstraction in your codebase, model picked per task. This is now the standard architecture for serious AI products. Crosslinks: Anthropic agency, Gemini agency, DeepSeek agency.