Writing Guides
12 min read
The Art of the Launch Post: How to Announce Your Product Without Sounding Like Everyone Else
Every startup launches with the same formula: exciting adjectives, buzzword-heavy paragraphs, and a call to action that sounds like it was written by committee. We analyzed 200 successful product launches to identify what actually works. The answer is specificity, authenticity, and a willingness to show your personality instead of hiding behind corporate language.
SL
Sophie Laurent
January 8, 2025
Engineering
15 min read
How We Built Brand Voice Memory: A Technical Deep Dive Into Controllable Text Generation
Building an AI that adapts to individual writing styles required solving three hard problems: extracting style features from limited samples, encoding those features into a reusable representation, and applying them during generation without sacrificing coherence. This post walks through our architecture, the dataset we created, and the evaluation methods that proved the system works.
MP
Marcus Park
January 12, 2025
Content Strategy
10 min read
Why Your Brand Voice Guide Is Not Working (And What to Do Instead)
Most brand voice guides are 30-page PDF documents that nobody reads after the first week. They describe tone with abstract adjectives like "friendly" and "professional" without showing concrete examples of what that sounds like in practice. We interviewed 50 content teams to understand why guides fail and what high-performing teams do differently.
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Nadia Reeves
December 20, 2024
Product Updates
5 min read
Horizon Q4 2024 Changelog: Templates, API Access, and Team Workspaces
The last quarter of 2024 was our busiest yet. We shipped 47 improvements across the platform, including the full template library with 50+ formats, public API access for Pro and Team plans, shared team workspaces with real-time collaboration, and a completely redesigned editor with inline AI suggestions. Here is everything that changed.
MP
Marcus Park
December 31, 2024
Writing Guides
9 min read
7 Prompting Techniques That Produce Better AI Writing Every Time
The quality of AI-generated writing depends almost entirely on how you prompt it. After analyzing 10,000 generations from our beta users, we identified seven prompting patterns that consistently produce better output: anchoring with examples, specifying audience, constraining length, requesting structure, setting negative constraints, iterating with feedback, and combining templates with custom instructions.
SL
Sophie Laurent
December 10, 2024
Company News
6 min read
Horizon Raises $4.2M Seed Round to Build the Future of AI-Assisted Team Writing
We are excited to announce our $4.2M seed round led by Y Combinator with participation from Sequoia Scout and a16z. This funding will accelerate our product development, grow our engineering team, and support our path to general availability. Here is what the investment means for our users, our roadmap, and the writing tools industry.
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Nadia Reeves
November 28, 2024
Content Strategy
11 min read
Content Velocity vs. Content Quality: Finding the Right Balance for Your Startup
Every startup faces the same tension: you need to publish frequently to build authority, but every piece needs to be good enough to earn trust. We analyzed the content strategies of 30 successful SaaS companies to understand how they balance speed and quality. The answer is not what most growth marketers expect.
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Nadia Reeves
November 15, 2024
Engineering
14 min read
Building a Real-Time Collaborative Editor: Lessons from Our First 500 Beta Users
Real-time collaboration in a writing tool is fundamentally different from collaboration in a code editor or spreadsheet. Writers need to see changes as they happen, but they also need periods of uninterrupted focus. We built our collaboration engine using CRDTs with a novel "presence awareness" system that shows who is working where without creating distraction.
MP
Marcus Park
November 5, 2024
Writing Guides
8 min read
How to Write Investor Updates That Actually Get Read: A Framework for Founders
Most investor updates are too long, too vague, and arrive too late. We surveyed 25 active angel investors and VC partners to learn what they actually read and what makes them respond. The best updates follow a simple structure: one headline metric, three bullets on progress, one honest challenge, and a specific ask. Here is the full framework with examples.
NR
Nadia Reeves
October 22, 2024