SEQUESTO vs ChatGPT, Claude and Copilot: They Draft an Answer. SEQUESTO Runs the Whole Bid.

For drafting, yes: ChatGPT, Claude and Copilot write a capable first answer. A bid is more than the draft. Someone has to read the tender pack and track its deadlines, assign the questions, keep each answer within the buyer's limits, fill the buyer's forms, gather the certificates and record who approved what. With a general assistant the team does that itself, or builds and maintains a process to do it. In SEQUESTO, James does it inside the bid: reads the tender pack and turns the key dates into tracked deadlines, assigns the work and follows up on what is missing, writes the full response, the executive summary and the cover letter, tailors CVs and references, builds the presentation from your template, fills the buyer's Word, Excel, PDF and PowerPoint files, and gathers the certificates and attachments into one zip, named the buyer's way.

Every answer needs checking before it goes into a tender. On G2, inaccurate answers are the complaint ChatGPT users mention most (1,028 mentions), and the vendors say so themselves: OpenAI calls ChatGPT's output a first draft, not a final source, Anthropic says users should not rely on Claude as a single source of truth, and Microsoft says Copilot's responses aren't guaranteed to be 100% factual. Once submitted, a response can become a contractual commitment. James drafts from your approved documents and shows, for every answer, the sources it used and how it was built, so the reviewer checks an answer against its source rather than against memory. The final wording and the sign-off stay with a person, and every approval is logged.

ChatGPT Enterprise answers the main security questions about the tool itself: no training on business data by default, audit logs through OpenAI's Compliance API, and data residency in Europe for new workspaces. It shares projects across the team. In our view, what it leaves to the team is the bid: the question list, an owner and a deadline per question, the buyer's limits, the forms, the attachments and the sign-off. Whether that is enough depends on how many bids the team answers and how many people work on each one.

Building on ChatGPT or Claude gets a team to a drafting tool quickly. What then has to be built and kept running is the bid around each answer: permissions per contributor, review and sign-off per question, a knowledge base kept current, an audit trail that satisfies a buyer's security review, checks on answer quality as the models change, and someone to maintain it when its builder moves on. A build suits a team with real engineering capacity and a simple, stable process. SEQUESTO is the buy option, and it works with the assistant you keep: an assistant that supports MCP can connect to SEQUESTO's MCP server, and SEQUESTO's REST API connects your own systems.

For drafting, often yes, and it is already where the team works: Copilot drafts in Word from the files a writer can open and can read an uploaded tender document. What it leaves to the team is the bid itself: the list of questions, an owner and a deadline on each, the buyer's forms, the attachments and the sign-off. A team can build some of that in Copilot Studio and then maintain it. SEQUESTO does it inside the bid and works alongside Microsoft 365, with SharePoint feeding the Knowledge Hub and Teams carrying notifications and approvals.

For bid work the three are close: all three draft well, share work across a team on their business plans and keep audit logs on their top plans. Copilot works inside Word and Outlook on the Microsoft 365 content each person can already open, which suits a team whose past bids live in SharePoint. On data location, Copilot keeps EU traffic inside Microsoft's EU Data Boundary, except for the Anthropic models it offers, and ChatGPT Enterprise can store a new workspace's data in Europe. Each leaves the bid itself for the team to organise. In our view, the choice between them matters less than the process around whichever one the team uses. SEQUESTO data is hosted in the EU or the US, as the customer chooses, on every plan.

You check its reply against the file yourself, because the list is only an answer in a chat. In SEQUESTO, James extracts the questions, requirements, evaluation criteria and word limits into the bid as tracked items, each with an owner and a status. A question nobody has answered stays visible before submission, James checks every requirement against the finished document, and the answers go back into the buyer's own file, in the same sections and order.

The difference is what each action is logged against. ChatGPT Enterprise and Claude Enterprise keep audit logs of conversations, and Microsoft Purview records each Copilot interaction with the files it read. SEQUESTO logs every action against the bid it belongs to: every file created, moved, shared or deleted, every comment, edit and approval and every access change, with the person who did it and when. One answer can be traced from the buyer's question to the version that went out.