Reply Fast. Negotiate Smart. Close More.

Close bigger brand deals.
Right from your Gmail.

FastRepli AI helps creators reply fast, negotiate confidently, and never leave money on the table — in under 5 seconds, right inside Gmail.

"Responding faster and more confidently meant brands took me more seriously. My average deal value went up." — John Tagudin, Creator & Builder
Start Closing Better Deals — $49 Lifetime → See how it works
Available on the Chrome Web Store
5s avg. reply time
2x deal rate
$0.01 avg. cost
Gmail Works inside

See it in action

Lives right inside
your Gmail compose box.

No new tabs. No copy-pasting. Just open Gmail, type a few words or nothing at all — and hit AI Reply.

mail.google.com
💼 Sponsorship Opportunity — $2,500 campaign
MB
Marcus B. marcus@brandpartners.co · 9:14 AM
Hi, we love your content and would like to explore a $2,500 sponsored post deal. Are you open to discussing rates and deliverables?
FastRepli AI — Reply Fast. Negotiate Smart. Close More.
PRESET
Initial Brand Inquiry
MEMORY
Brand Deal Negotiator
TONE
Settings saved automatically

Who it's for

Works for anyone
who lives in Gmail.

Built for creators who negotiate deals through email every week.

🎨
Content Creators
Reply to brand deals, counter lowball offers, and close higher deals. Not just faster — smarter.
Brand deal replies
💼
Freelancers & Agencies
Client follow-ups, project proposals, scope negotiations — faster and more professional than writing from scratch.
Client emails
⚙️
Other Roles
Sales, e-commerce, recruiters, job seekers — anyone who sends a lot of emails and wants replies that actually sound like them.
Any email type

Social proof

Real deals closed
using FastRepli.

These are actual email threads — brand deals negotiated and closed right inside Gmail.

Brand deal email screenshot 1
Brand deal email screenshot 2
Brand deal email screenshot 3
Brand deal email screenshot 4

How it works

Three steps.
Five seconds.

No new tools to learn. No copy-pasting between tabs. Works entirely inside Gmail.

01
Install & add your API key
Install the Chrome extension, paste your OpenAI or Anthropic API key into the popup. Stored locally on your device — we never see it.
02
Set your memory & presets
Tell the AI who you are, what you do, and how you like to communicate. Save presets for different situations — negotiation, follow-up, support, etc.
03
Open Gmail and hit AI Reply
The toolbar appears right inside your compose box. Pick a preset, choose a tone, and click AI Reply. Edit if you want, then send.

Features

Built for creators who
negotiate deals every week.

Built for speed, control, and results — not bloated with stuff you'll never use.

✨
Set up in under a minute. No manual work.
Answer 4 questions about yourself — your niche, your rates, your tone. FastRepli builds your entire library automatically: your memory, your presets, your voice. Ready to use in under a minute. No prompt engineering. No setup headache.
🤖
AI-Powered Reply Generation
Generate a full email reply with one click. The AI reads the entire thread for context and writes a reply that fits the conversation — using your own OpenAI or Anthropic API key.
✍️
Refine & Iterate
Not happy with the first draft? Send a follow-up instruction ("make it shorter", "sound more firm") and the AI rewrites it. Quick-action chips let you do common refinements in one click.
📚
Library — Memories & Presets
Create a personal Library that teaches the AI who you are. Memories hold your persona and writing style. Your Library, your presets. The AI Generator builds them based on your answers — or create your own from scratch. Save presets for every situation: counter a low offer, follow up, decline politely, close the deal.
🎨
Tone Control
Set a tone per preset or per reply — Auto, Casual, Firm, or Formal. The AI adapts its writing style accordingly.
⚙️
Provider & Model Choice
Switch between Anthropic (Claude Opus, Sonnet, Haiku) and OpenAI (GPT-4o, GPT-4o Mini) at any time. Each has a recommended model highlighted.

How it compares

The only email tool built
for creator negotiations.

Most AI email tools are built for everyone — which means they're built for no one. FastRepli AI is built specifically for creators who negotiate brand deals, handle sponsorships, and close partnerships through email every week.

💸
Pay once, own it forever. Superhuman charges $30/month — that's $360 a year, every year, for a tool not built for creators. FastRepli is $49 one-time during launch. After launch it switches to monthly. Lock it in now.
🧠
It knows your rates, your deal-breakers, your tone. Other tools use a fixed prompt you can't touch. FastRepli lets you define exactly who you are — your niche, your rates, how you negotiate — so every reply sounds like you wrote it, not a generic AI.
🔒
Your data never touches our servers. Your API key, your deal history, your memories — stored locally on your device only. Your brand deal conversations stay private. Always.
✏️
Start with a few words, get a full negotiation reply. Already know what you want to say but not how to say it professionally? Type a rough draft — even just a few words — and FastRepli rewrites it into a confident, deal-closing reply.
Feature Superhuman Compose AI Lavender ChatGPT (manual) FastRepli AI
Pricing $30/mo $25/mo $29/mo Free / $20mo $49 one-time
Lives inside Gmail ✓ ✓ ✓ ✕ ✓
Reads full email thread ✓ Partial ✓ ✕ ✓
You fully control the AI prompt ✕ ✕ ✕ Manual only ✓
Persistent memory / custom role ✕ ✕ ✕ ✕ ✓
Rewrites your draft (not just generates) ✕ Autocomplete ✕ ✕ ✓
Saved presets per email type ✕ ✕ Templates ✕ ✓
Built for creator brand deals ✕ ✕ ✕ ✕ ✓
Choose your AI model (GPT / Claude) ✕ ✕ ✕ ✕ ✓
Your data stays on your device ✕ ✕ ✕ ✕ ✓
Cost per reply Included in $30/mo Included in $25/mo Included in $29/mo ~$0.01–0.03 ~$0.01

Competitor pricing and features based on publicly available information · Last checked April 2026

John Tagudin
Creator · Builder

Why I built this

I'm John. I built this because I hated emailing too.

I've been a content creator for almost 3 years. 500k+ followers across platforms. And the biggest headache wasn't making content — it was the inbox.

Brand deals, partnerships, sponsorships. They all come through email. And with reach comes volume — a flood of lowball offers, scammers, and spam that you have to sift through and respond to professionally.

It was taking me 3 hours a day just to clear my inbox. Negotiating, declining, following up — over and over. Repetitive, draining, and honestly just a grind I didn't sign up for.

So I built a Chrome extension that does it with me. It knows my rates, my deal-breakers, my tone. After a few versions (and a lot of testing on my own inbox), it finally felt right. Fast, personal, and actually sounds like me. And not just that — I started closing better deals. Responding faster and more confidently meant brands took me more seriously. My average deal value went up.

I'm sharing it now because if I found this useful, I think anyone with the same problem would too.

John Tagudin
John Tagudin
@john.tagudin · Content Creator · Builder of this thing

Pricing

One deal closed
pays for this. Forever.

$49 one-time during launch. After launch, monthly subscription only. No price increases, no hidden fees — just lock it in now.

Lifetime access is only available during launch. Once this period ends, FastRepli switches to a monthly plan. Lock in lifetime access now.

🔥 LAUNCH ONLY · LIFETIME ACCESS
FastRepli AI
Every feature, unlimited use, lifetime access. No tiers, no upsells. After launch, monthly subscription only.
$ 49 one-time
⚡ Launch offer — switches to monthly after launch
  • ✦ Chrome extension — lifetime access
  • ✦ Works on any Gmail account (personal + Workspace)
  • ✦ OpenAI (GPT-4o) + Anthropic (Claude) — your choice
  • ✦ Tone selector — Friendly, Formal, Firm, Casual
  • ✦ Regenerate button — fresh version in one click
  • ✦ Unlimited custom memories — define your role and voice
  • ✦ Unlimited presets — saved workflows for any email type
  • 🎁 BONUS: 10 Done-For-You Prompt Templates PDF
  • 🎁 BONUS: 100 Memory Base Prompts PDF (10 roles x 10 prompts)
  • ✦ Lifetime updates included
  • ✦ 30-day money back guarantee
Get FastRepli — $49 Lifetime, Before It's Gone → Available on the Chrome Web Store

You bring your own API key · Average reply cost: ~$0.01 · 30-day money back guarantee

FAQ

Questions.

Do I need an OpenAI or Anthropic account? +
Yes — you'll need your own API key from either OpenAI (platform.openai.com) or Anthropic (console.anthropic.com). Both are free to sign up. Each reply costs about $0.01, so a few dollars lasts months of normal use. We include a setup guide with your purchase.
Is my data private? +
Yes. Your API key, memories, and presets are stored locally in Chrome storage on your device only. Your email content is sent directly to OpenAI or Anthropic when you click AI Reply — the same as using ChatGPT or Claude directly. We never see any of it.
Will it actually sound like me? +
That's the whole point of the memory system. You describe yourself, your communication style, your role — and the AI writes from that perspective every time. The more detail you put in your memory, the more it sounds like you.
Can I edit the reply before sending? +
Always. The reply appears directly in your Gmail compose box — it's fully editable. Tweak a word, add something personal, or regenerate a completely different version. You're always in control.
Is there a free trial? +
Yes — you get 7 free replies to try FastRepli before purchasing. After that, a license key is required. You'll still need to add your own API key to use the free trial. You can use the free trial API key from Claude AI — watch the clip below to see how.
Tutorial clip coming soon
Is there a refund policy? +
30-day money back guarantee, no questions asked. If it doesn't make your email life faster and easier, just email us and we'll refund you in full.
Why not just automate everything with MCP or an AI agent that replies automatically? +
You could — but you probably shouldn't. Setting up MCP or an agentic pipeline takes real technical effort, burns a lot of tokens per run, and gets expensive fast. More importantly, brand deal negotiations aren't the kind of thing you want running on autopilot. One wrong reply to a $5,000 deal and it's gone. FastRepli AI is built around a different idea: speed up the process, not remove you from it. It drafts a confident, rate-aware reply in seconds — but you read it, approve it, and hit send. The AI handles the heavy lifting. You handle the judgment call. That's the right split for anything involving real money.

Start today

Stop leaving money
in your inbox.

Every unanswered brand deal, every lowball you accepted, every negotiation you fumbled — that's money you didn't make. FastRepli fixes that in 5 seconds.

Get FastRepli — $49 Lifetime →