The X Algorithm is Now Open Source

Your replies are worth
75x more
than your likes.

The algorithm doesn't care about your posting schedule.

We decoded the open-source X algorithm. Everything you've been told about growth is wrong. One reply chain = 150 likes worth of reach.

Join the waitlist β€’ No spam, ever

Weighted Scorer β€’ From Source Code
VERIFIED

// scored_tweets_model_weight β€” published April 5, 2023

reply_engaged_by_author75.0
reply13.5
good_profile_click12.0
good_click11.0
good_click_v210.0
retweet1.0
fav0.5
video_playback500.005
negative_feedback_v2-74.0
report-369.0

Bookmark is not in this formula. 19 signals are scored in weighted_scorer.rs β€” bookmark is not one of them.

twitter/the-algorithm-ml β€’ xai-org/x-algorithmView full breakdown β†’
The Reality

Sound familiar?

A creator with 50,000 followers shared this with us last week.

Anonymous Creator@hidden50K followers

"I've been posting 3x daily for 6 months. Engagement dropped 40%. I tried posting at 'optimal times,' using trending hashtags, even paid for courses. Nothing worked. My reach just... died.

Then I found out I was shadowbanned for 3 weeks and had no idea. No notification. No warning. Just silence."

40-48%

Average engagement drop on X in 2025

0.029%

Median engagement rate (3 per 10K followers)

51%

Of full-time creators struggle to survive

The Solution

Stop guessing. Start knowing.

We built the first AI that actually understands the X algorithmβ€”because we read the source code.

Algorithm Score

See exactly how the algorithm will rank your content before you post. Real-time scoring based on actual algorithm weights.

reply_engaged_by_author75.0
good_profile_click12.0

Shadowban Detector

Know instantly if you're being throttled. Get specific diagnosis and a recovery planβ€”not just "wait it out."

report-369.0
negative_feedback_v2-74.0

Reply-Chain Optimizer

The highest-weighted signal in the algorithm: when your reply gets engaged by the author. We show you which replies to prioritize.

reply_engaged_by_author75.0
reply13.5
fav (like)0.5
The Process

How we cracked the code

X open-sourced their algorithm. We did what no one else bothered to do: actually read it.

01

We analyzed the Phoenix algorithm

X's recommendation system uses a Grok-based transformer that predicts engagement probabilities. We mapped every weight, every multiplier, every penalty.

02

We built a scoring engine

Our AI simulates how the algorithm will score your content before you post. No more guessingβ€”see your predicted reach in real-time.

03

We validate with real data

Every prediction is tested against actual X performance. Our model learns and improves with every post analyzed.

COMPLETE SCORING FORMULA

weighted_scorer.rs

// Final Score = Ξ£ (weight_i Γ— P(action_i)) β€” from xai-org/x-algorithm

Published Weights
twitter/the-algorithm-ml β€’ Heavy Ranker README β€’ April 5, 2023
75.0
reply_engaged
_by_author
13.5
reply
12.0
good_profile
_click
11.0
good_click
10.0
good_click_v2
1.0
retweet
0.5
fav
0.005
video
_playback50
-74.0
negative
_feedback_v2
-369.0
report
Additional Phoenix Signals
in weighted_scorer.rs β€’ weights not published
?
share
?
share_via_dm
?
share_via_copy_link
?
dwell
?
dwell_time
?
quote
?
quoted_click
?
photo_expand
?
follow_author

// params.rs excluded from open-source release β€” numeric weights for these 9 signals are not public

vqv_score only applies if video_duration_ms > MIN_VIDEO_DURATION_MS. Videos below this threshold receive zero VQV weight. β€” weighted_scorer.rs:vqv_weight_eligibility()

Not in the scoring formula

Bookmarks do not appear in weighted_scorer.rs. The function scores exactly 19 signals β€” bookmark is not one of them.

Per RETRIEVAL_SIGNALS.md, bookmarks are used as a feature in only 1 of 6 candidate sourcing systems (USS). By comparison: likes are used in all 6, retweets in 5 of 6, replies in 5 of 6.

[1]xai-org/x-algorithm/home-mixer/scorers/weighted_scorer.rs β€” 19 scored signals
[2]twitter/the-algorithm-ml/projects/home/recap/README.md β€” 10 published weights (April 5, 2023)
[3]twitter/the-algorithm/RETRIEVAL_SIGNALS.md β€” candidate sourcing signal usage table
Early Access Pricing

Built for creators who are serious about growth

Waitlist members get 50% off for life. No commitment until we launch.

Creator

For individual creators

$29/mo
Waitlist: $15/mo
  • 100 Algorithm Scores/mo
  • Shadowban Detection
  • Basic Analytics
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Pro

For serious creators

$59/mo
Waitlist: $30/mo
  • Unlimited Algorithm Scores
  • Reply-Chain Optimizer
  • AI Content Assistant
  • Competitor Tracking (5)

Agency

For teams & agencies

$149/mo
Waitlist: $75/mo
  • Everything in Pro
  • 10 Team Members
  • White-label Reports
  • API Access

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FAQ

Frequently Asked Questions