Every Offer, Counter & Term —
One Living Thread.

OfferStack turns scattered negotiation emails into a structured deal timeline. Version history, concession tracking, term diffs, and AI-powered recaps — so you never lose context mid-deal.

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V1
V2
V4 — Current
Latest
Rate$14.50/MT
Laycan1-10 Apr
Commission3.00%
TermsFIO
On Subjects — 2h remaining

Negotiations happen across 50+ emails. Context is lost by email 10.

Brokers juggle multiple counterparties, shifting terms, and verbal agreements buried in email threads. By the time a deal is close to fixing, nobody remembers who conceded what, when, or why. Mistakes happen. Deals fall apart.

The Old Way

Scroll through 50 emails to find the last rate. Copy terms into a spreadsheet. Hope nothing changed since your last read. Miss a counter-offer because it was buried in a reply chain.

The CharterAI Way

Every offer, counter-offer, and term change is auto-captured into a structured timeline. Concessions are tracked. Diffs are highlighted. AI recaps the full negotiation state in one click.

Core Capabilities

Version Timeline

Every offer and counter-offer becomes a numbered version. See who said what, when, and how terms changed — from first contact to subjects.

Full history

Concession Tracking

Automatically logs every concession made by each party. Rate drops, laycan shifts, commission changes — all tracked with timestamps.

Auto-logged

Term Diff View

Side-by-side comparison of any two versions. Changed terms highlighted in amber. Unchanged terms greyed out. Instantly see what moved.

Visual diffs

AI Deal Recap

One-click AI summary of the full negotiation. Current terms, open items, concession history, and recommended next steps — generated in seconds.

AI-powered

How It Works

1

Emails Are Parsed

Negotiation emails are parsed by Email Intelligence. Offer terms, counter-offers, and deal updates are extracted and classified automatically.

2

OfferStack Builds the Timeline

Each parsed message becomes a version in the deal timeline. Terms are compared, concessions logged, and diffs computed. The full negotiation state is always current.

3

You Negotiate with Context

Review the deal overview, check concession history, compare term versions, and generate AI recaps. Make decisions with full visibility — not from memory.

Deal Overview
On Subjects
MV NORDIC STAR — 50K Petcoke
Iskenderun → Rotterdam
Charterer: Pacific Trading Co.Owner: Nordic Shipping AS
Version Timeline
V1 — Owner's Initial Offer
$15.50/MT | Laycan 1-5 Apr | 3.75% comm
Owner
V2 — Charterer Counter
$14.00/MT | Laycan 1-10 Apr | 2.50% comm
Charterer
V3 — Owner Counter
$14.75/MT | Laycan 1-8 Apr | 3.25% comm
Owner
V4 — Charterer Final
$14.50/MT | Laycan 1-10 Apr | 3.00% comm
Charterer
Concession Log
OwnerCharterer
Rate-$1.00+$0.50
Laycan+3 days
Commission-0.50%+0.50%
Current Terms
Subject Deadline: 14:30 UTC
Freight Rate$14.50/MT
Laycan1-10 Apr 2025
Commission3.00%
Cargo50,000 MT Petcoke
TermsFIO

Your entire negotiation — structured, tracked, and summarized.

0
versions tracked per deal
100%
concessions logged
<1s
AI recap generation
0
context lost between emails
ECOSYSTEM

Every agreed term feeds into Voyage P&L for estimation and into a structured recap ready to send. Negotiate once, stay in sync everywhere.

Ready to negotiate with full context?

See OfferStack track your live negotiation threads.

Book a Demo