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Proposal libraries: assemble the right versions
Short answer
A proposal library collects approved service descriptions and references with their owners and rules of use, and a finished proposal keeps the versions it was built from. First check the content library in your current proposal tool, and build an application when authors still copy passages between files. At Syntalith the application costs from €3,000 net. At 100 proposals a month of 35 minutes each, it pays back in 2.1 months.
How we workDetails ↓
- 01Call30 minutes with an engineer, free
- 02PrototypeA working system on your process and data, free
- 03ImplementationTarget and fixed price in the contract; 50% at signing
- 04Acceptance50% once the agreed target is met
- net per application, fixed price before contract
- from €3,000
- from signing the contract to acceptance
- 4–10 weeks
- free prototype on your documents
- €0
We belong to the OpenAI and Anthropic partner programmes and learn through their official courses. What this means ↓
Author: Syntalith · 3 min read
Statistics
Proposals and AI: statistics 2026
2.1 mo.
payback of a €3,000 application at 100 proposals a month: €2,036 of work today, €612 with checking and the model. Scenario.
40%
According to a study published in Science (2023), ChatGPT cut the time 453 professionals spent on writing tasks by 40%.
Source: Noy and Zhang, Science (2023) ↗
50%
According to the European Commission (2026), half of EU SMEs and mid-caps name high investment costs as a barrier to AI.
Source: European Commission, Flash Eurobarometer 578 (2026) ↗
34.7%
According to Eurostat (2025), 34.7% of EU enterprises that used AI used it for marketing or sales.
20.0%
According to Eurostat (2025), 20.0% of EU enterprises with at least 10 employees used AI.
Figures checked: 22 October 2026
An old paragraph changes the scope of the service
A salesperson prepares a proposal for an installation service. The old document says the client prepares the installation site. The current description in the library says the contractor prepares it, within a separately defined scope. Copying the old paragraph would change what the company presents to a new client.
In the library, the author opens the current description with its version and the contact for the service owner, and agrees the scope for this case with them. The reviewer sees which description was used and which adjustment was approved. After approval, the proposal keeps the chosen passages, and a later change to the shared description serves future proposals and does not change a document already sent to the client.
A reference needs agreement on who may see it and in what form. Material available internally does not have to be approved for sending, and removing the client's name does not settle whether the rest of the content may be used. When that agreement is missing, the author asks the owner before attaching the reference.
- 01Choicethe current service description with its version and owner
- 02Adjustmentthe scope agreed for this case
- 03Referenceonly material approved for this use
- 04Reviewthe reviewer sees the sources of the passages
- 05Exportthe client version with no internal notes
- Every passage has a version and an owner
- A reference has its permitted use recorded
- A sent proposal does not change after a description is updated
- The export keeps the links between the proposal and its sources
What it costs and when it pays back
- Today
- 100 proposals × 35 min = 58.3 h (€2,036)
- With the system, a person checks the output in 30% of the time
- €611
- Model, 1 call per case, Claude Sonnet 5.5
- €1
- Cost of one case
- €20.36 today, €6.12 with the system
- Saving
- €1,424 a month
Payback of €3,000
2.1 months
The volume, the time and the checking share are the scenario's assumptions. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat. Model: 4,000 input tokens and 600 output tokens per call at Anthropic's rates, at the ECB rate of 1.1205 USD per euro on 22 October 2026.
The count covers the work around a case: searching, reading, writing and handing over. What remains is the time to check the result, 30% of today's work in the scenario. Before the quote, we measure both times on 20 to 100 cases the team has already handled, in a free test that takes 5 working days.
According to a study in Science (2023), ChatGPT cut the time 453 professionals spent on writing tasks by 40%. In proposals that gain only counts when the draft uses current passages, so we also measure the reviewer's corrections.
Check the library in your current tool
PandaDoc describes a library in which a team reuses blocks, pages and whole documents in templates. The new solution described is in early access, and the features depend on the plan (PandaDoc content library). If you use a similar product, check with the administrator how an author picks an approved passage and what is recorded with the proposal. Tidying the library and naming content owners may be enough. An integration makes sense when descriptions sit in one place, references in another, and proposals are assembled in a third. Searching internal guides is covered in the article on a knowledge base for professional services.
The tool has a library, no owners
tidy the content and name owners
no build
Descriptions, references and proposals in different places
an integration with versions and rules of use
from €3,000
Authors copy, the reviewer reconstructs the origin
a proposal library built to order
from €3,000
Where to start
The first scope covers proposals for one type of service, from choosing content to exporting the approved version. For the call, bring a passage that recently had to be corrected because it came from an old proposal, and the name of the person who approves the right version. We build this kind of rollout as part of AI applications. For the free analysis, a description of one case from recent weeks and of the tools it passed through is enough. You do not need to send confidential documents, and you get a written plan within 2 working days.
Worked example · Scenario
How we count the payback: assembling proposals
We run the same count for your team in the free analysis.
€2,094
a month for preparing 120 quotes from customer enquiries by hand
Payback: 1.7 mo.
30 minutes per quote from an enquiry and checking in 15% of the old time are our assumptions. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat, for companies with 10 or more employees. Model cost: Claude Sonnet 5.5, about 4,000 + 1,500 tokens per draft quote, at the ECB rate of 1.1205 USD per euro on 22 October 2026. The extra margin is a scenario: we assume that 1 in 40 enquiries quoted the same day ends in an order that a slow reply loses today, with a margin of €344. In the review we count it on your sales process.
See the full calculation →