Algorithm-proven · peer-reviewed research

Reply smarter.
Grow faster.

++

We don't guess what works. We run on the actual X algorithm weights, Reddit's causal upvote data, and LinkedIn's confirmed Depth Score model. Plus an AI humanizer that strips AI tells at the source. Not vibes. Math.

Start for freeSee how it works
75× AUTHOR-REPLY WEIGHT◆82% MORE REPLIES◆12 PROVEN ARCHETYPES◆+43% REDDIT UPVOTES◆PEER-REVIEWED RESEARCH◆NOT VIBES. MATH.◆AI HUMANIZER◆SUBREDDIT-AWARE ENGINE◆90+ AI PATTERNS BLOCKED◆LINKEDIN DEPTH SCORE◆54% OF LINKEDIN IS AI◆94% DETECTION ACCURACY◆47% LESS REACH WITHOUT US◆6 LINKEDIN PERSONAS◆ADAPTIVE MEMORY ENGINE◆TWO VARIANTS PER CREDIT◆BURSTINESS SCORING◆FREE TO START◆
75× AUTHOR-REPLY WEIGHT◆82% MORE REPLIES◆12 PROVEN ARCHETYPES◆+43% REDDIT UPVOTES◆PEER-REVIEWED RESEARCH◆NOT VIBES. MATH.◆AI HUMANIZER◆SUBREDDIT-AWARE ENGINE◆90+ AI PATTERNS BLOCKED◆LINKEDIN DEPTH SCORE◆54% OF LINKEDIN IS AI◆94% DETECTION ACCURACY◆47% LESS REACH WITHOUT US◆6 LINKEDIN PERSONAS◆ADAPTIVE MEMORY ENGINE◆TWO VARIANTS PER CREDIT◆BURSTINESS SCORING◆FREE TO START◆
See it in action

Paste a post. Get a reply that converts.

Two variants per credit. Every output is scored, burstiness-checked, and filtered for AI vocabulary before it reaches you.

@startupwisdom

4.2M impressions

Simple products win. Complexity is a tax you pay when you don't understand the problem.

Forcalabs · Data AddScore 0.91

Christensen's jobs-to-be-done research found the opposite in B2B: products that matched job complexity outretained simpler alternatives. Linear ships 400+ shortcuts and is winning. Maybe the tax isn't complexity. It's complexity pointed at the wrong job.

@marcus_voss

12.8M impressions

Specific knowledge is knowledge you cannot be trained for. If society can train you for it, society can train someone else and commoditize it.

Forcalabs · Lived AnecdoteScore 0.88

Taught myself to code. No bootcamp, no course. Took forever, but nobody else can replicate the exact mistakes I made along the way. That's the product.

@kate_launches

6.3M impressions

The best founders I've met weren't trying to start companies. They were trying to solve problems.

Forcalabs · ReframeScore 0.94

Or they were obsessed with the problem and the company was just the inevitable container. The ones who start with the company first, name, deck, team, almost never ship.

@techoptimist_x

9.1M impressions

We may be approaching a moment where most coding is done by AI.

Forcalabs · Productive DisagreeScore 0.87

Most routine coding, sure. But the hard part was never the typing. It's figuring out what to build. That bottleneck doesn't move.

@buildingremote

3.7M impressions

Work-life balance is a misnomer. It implies work and life are adversarial.

Forcalabs · Casual RewriteScore 0.89

Yeah, the framing is off. If your work drains you, no amount of balance fixes it. If it energizes you, you stop counting hours. The problem is the work, not the ratio.

@startupwisdom

4.2M impressions

Simple products win. Complexity is a tax you pay when you don't understand the problem.

Forcalabs · Data AddScore 0.91

Christensen's jobs-to-be-done research found the opposite in B2B: products that matched job complexity outretained simpler alternatives. Linear ships 400+ shortcuts and is winning. Maybe the tax isn't complexity. It's complexity pointed at the wrong job.

@marcus_voss

12.8M impressions

Specific knowledge is knowledge you cannot be trained for. If society can train you for it, society can train someone else and commoditize it.

Forcalabs · Lived AnecdoteScore 0.88

Taught myself to code. No bootcamp, no course. Took forever, but nobody else can replicate the exact mistakes I made along the way. That's the product.

@kate_launches

6.3M impressions

The best founders I've met weren't trying to start companies. They were trying to solve problems.

Forcalabs · ReframeScore 0.94

Or they were obsessed with the problem and the company was just the inevitable container. The ones who start with the company first, name, deck, team, almost never ship.

@techoptimist_x

9.1M impressions

We may be approaching a moment where most coding is done by AI.

Forcalabs · Productive DisagreeScore 0.87

Most routine coding, sure. But the hard part was never the typing. It's figuring out what to build. That bottleneck doesn't move.

@buildingremote

3.7M impressions

Work-life balance is a misnomer. It implies work and life are adversarial.

Forcalabs · Casual RewriteScore 0.89

Yeah, the framing is off. If your work drains you, no amount of balance fixes it. If it energizes you, you stop counting hours. The problem is the work, not the ratio.

Engine · Open-source algorithm weights · 280M daily users

The results speak for themselves

One signal dominates. When the author replies back, that interaction gets 75×. Every X output is built to get exactly that.

Author-reply weight

75×

vs 0.5× for a like

More replies

82%

with uncertainty framing

Proven archetypes

12

proven reply archetypes

Reddit Engine · CHI 2026 causal data · 11M posts

The data behind every Reddit output

Goyal et al. (CHI 2026, arXiv 2509.10370) ran causal inference on 11 million Reddit posts. We baked every coefficient into the engine.

Upvote lift

+43%

broader discussion framing

Readability boost

+40%

per SD of Flesch reading ease

Most-cited on Google AI

#1

Reddit is cited most in Google AI Overviews

LinkedIn Engine · LiRank algorithm (arXiv 2402.06859) · Depth Score

The data behind every LinkedIn output

LinkedIn VP Laura Lorenzetti confirmed (May 2026): 94% AI detection accuracy. Flagged posts throttled to first-degree reach only. 54% of long-form posts are now AI-assisted. We built the engine to be undetectable.

AI posts on platform

54%

of long-form posts AI-assisted (Originality.ai, Oct 2024)

Reach penalty for AI posts

47%

less organic reach with AI patterns (Brixon Group, 500+ B2B profiles)

Detection accuracy

94%

LinkedIn's confirmed AI classifier accuracy (LinkedIn VP, May 2026)

The engine

Built on the actual algorithm

CORE SIGNAL

Author replies back = jackpot

X gives it 75× the weight of a like when the original author replies to your reply. One signal. Every output is built to get it.

MEMORY ENGINE

Gets sharper every use

Rate any reply good or bad. The engine learns your tone and style. The more you use it, the closer it sounds like you.

SOUNDS HUMAN

Spots robot writing. Rewrites it.

We scan sentence rhythm in real time. If it reads like AI wrote it, we rewrite it until it sounds like a real person did.

AI SLOP FILTER

90+ AI patterns blocked.

"Delve", "tapestry", "underscore". Vocabulary, phrase patterns, epistemic tells, and formatting red flags — blocked before output reaches you.

Algorithm weights — open source · verified
Like0.5
Retweet1.0
Reply13.5
Author replies back75.0
How it works

Three steps to a viral reply

Paste the post

Drop any X, Reddit, or LinkedIn post you want to reply to. URL or raw text, both work.

Pick your angle

Choose archetype, length, and niche. Two variants generated instantly.

Rate and improve

Thumbs up/down trains your memory engine. Every click makes the next reply smarter.

Pricing

Start free. Scale when you grow.

Every credit generates two reply variants. No usage-based surprises — fixed monthly limits.

Free

$0forever

Free forever

2 / day cap

  • 2 replies to experience the full engine
  • 2 archetype variants per generation
  • Burstiness quality score
  • AI memory that learns your style
Get started free

Spark

$9/month

300 credits / month

30 / day cap

  • 300 reply generations per month
  • 2 archetype variants per generation
  • Adaptive memory with pattern learning
  • Full history and feedback loop
  • All 5 archetypes and 7 niches
Start Spark
Most popular

Blaze

$29/month

1,500 credits / month

80 / day cap

  • 1,500 reply generations per month
  • 2 archetype variants per generation
  • Priority Groq inference
  • Full history and feedback loop
  • All 5 archetypes and 7 niches
  • Advanced pattern memory
Start Blaze

Business

$79/month

5,000 credits / month

200 / day cap

  • 5,000 reply generations per month
  • Priority Groq inference
  • Advanced pattern memory
  • Everything in Blaze
Start Business

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