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Pentimenti vs Copilot and ChatGPT for bids

A general assistant is a fast writer with no memory of your business and no view of the tender. For a one-off paragraph or a rewrite it is the right tool and your team already has it. For a public tender with a requirement list, a compliance matrix and a confidentiality clause it is the wrong one: it only knows what you paste in, starts blank every time, cannot track requirements or cite where an answer came from, and on a consumer plan your tender material leaves your control. Pentimenti reads the whole tender, drafts from your own approved content, builds the compliance matrix and traces every answer to its source, with a named person approving before anything goes out.

Side by side

What each tool does on a real tender

 Copilot / ChatGPTPentimenti
Reads the actual tenderOnly what you paste or attach; no structured view of requirements, weights or knock-outsIngests the full tender pack and extracts every requirement with its page and weight
Drafts from your winning contentStarts blank each time; Copilot can draw on files in your tenant but does not know which bids wonDrafts from your past proposals, CVs, references and product documentation, and learns which content won
Requirement-by-requirement complianceNo compliance matrix; you track coverage yourselfAutomatic compliance matrix, every requirement mapped to the section that answers it
Source attributionNone for generated text; you cannot see which document an answer came fromEvery answer traced to the page it came from, for review and audit
Confidential tender dataDepends on the plan: consumer ChatGPT may use inputs for training; Microsoft 365 Copilot and ChatGPT Enterprise keep data inside your tenantGDPR compliant, data never used for training, EU-only hosting tier and a single-tenant EU option
Finds new tenders for youNoYes, TenderScout monitors TED, Udbud.dk and Doffin and matches notices to your capabilities
Human approval built inWhatever process you wrap around itA named person approves every section before submission; Atlas does the legwork
Best forQuick ad-hoc drafting, rewriting, summarising a document you already haveWinning complex tenders end to end, with proof for every answer

Where Copilot and ChatGPT are genuinely good

Both are excellent writers. Give Copilot a paragraph and a tone and it rewrites it well; give ChatGPT a page of notes and it produces a clean summary in seconds. Inside Word and Outlook, Copilot is the fastest way to tidy an email or restructure a section you have already written. If your team answers a handful of short RFIs a year and has the content at hand, that may be all you need.

They are also already licensed in most organisations, which makes them the default starting point. The question is not whether they can write, it is whether they can run a bid.

Best for
Short responses, rewrites and summaries of material you already have, by people who own the process themselves.
Watch out for
No view of the tender's requirements, no memory of what won, no compliance matrix and no source for a generated sentence. On a consumer plan, confidential inputs may be used for training.

Where they fall short on a public tender

A tender is not a writing task. It is two hundred requirements with weights and knock-out criteria, a deadline, amendments that change the requirements halfway through, and an evaluation panel that scores you on whether each requirement is answered where they expect to find it. A general assistant has no structured view of any of that. It will write a confident paragraph about your service level, but it does not know that requirement 5.1 asks for 99.9% availability and that your standard answer says 99.5%.

It also starts from zero every time. The CVs, the references, the product documentation and the sections that won last year are the raw material of a good bid, and they live in your systems, not in the model. Copilot can read files you point it at, but it does not know which proposal won and which did not, and it will not tell you which page a sentence came from.

What Pentimenti does differently

Pentimenti is built around the tender, not around a chat box. Atlas, the orchestration agent, reads the whole pack, extracts the requirements into a compliance matrix, and spawns the specialist agents the response needs: product, CV, reference, contract, compliance. Each one drafts from your own approved content and attaches its sources. A named person on your team reviews and approves each section; nothing goes out on the agent's say-so.

Because the data is the bid team's institutional memory, it stays yours: GDPR compliant, never used to train models, with an EU-only hosting tier and a single-tenant EU option for the most sensitive bids. And because tenders have to be found before they can be won, TenderScout watches TED, Udbud.dk and Doffin overnight and matches notices to what you actually do.

Best for
Teams that answer public tenders and formal RFPs and need every answer traceable, compliant and in the EU.
Watch out for
It is a bid platform, not a general assistant. Most customers keep Copilot for email and documents and run the bid itself in Pentimenti.

Using both

This is not an either-or. Copilot stays the assistant in Word, Outlook and Teams; Pentimenti is where the tender lives from the first notice to the submitted proposal. The output of Pentimenti is a Word or PDF document, so the final polish can still happen in the tools your team already uses.

An honest split

Choose Copilot or ChatGPT if

  • You answer a few short RFIs a year and already have the content at hand
  • You need a rewrite, a summary or a tidier version of text you have written
  • Nobody owns a bid process yet and the licence is already paid for

Choose Pentimenti if

  • You answer public tenders with requirement lists, weights and formal evaluation
  • You need every answer traceable to a source for review and audit
  • Your tender material is confidential and has to stay in the EU
  • You want the right tenders found for you, not searched for
FAQ

Questions people ask before choosing

Can I use ChatGPT or Copilot to write a tender response?

For individual sections, yes, and many teams do. What they cannot do is read the full tender, keep a compliance matrix, draft from your past winning bids or show where an answer came from. The risk is a fluent response that misses requirements the evaluators score on.

Is it safe to paste tender documents into ChatGPT or Copilot?

It depends on the plan. Consumer ChatGPT may use what you paste to improve its models; Microsoft 365 Copilot and ChatGPT Enterprise keep data inside your organisation's tenant and do not train on it. Check which plan your colleagues are actually using, and whether the tender's confidentiality clause allows it at all.

Does Pentimenti replace Copilot?

No. Pentimenti runs the bid: discovery, bid/no-bid, compliance matrix and the proposal draft with sources. Copilot stays the assistant in Word, Outlook and Teams. The proposal Pentimenti produces is a Word or PDF document, so the final polish happens where your team already works.

Does Pentimenti work with the documents we already keep in Microsoft 365?

Yes. Your past proposals, CVs, references and product documentation are onboarded into Pentimenti as the content the agents draft from, and the output comes back as Word or PDF. The integrations page describes the connectors.

Vendor facts checked on 12 October 2026 against: OpenAI enterprise privacy. Vendors change these pages; re-check before relying on them.

See it on one of your own tenders

Bring a tender you answered recently. We run it through Pentimenti with you and you compare the draft with what you submitted.