SuperX post scoring
Rob Hallam (@robj3d3) built a viral post classifier for SuperX using Jev on draft text only.
by @robj3d3
Overview
SuperX post scoring is Rob Hallam's (@robj3d3) Jev classifier for X drafts. His September 2026 clip claims sixty one parallel questions in about one second for about $0.0004, fitted on nine thousand four hundred eighty one real posts from two hundred seven creators, picking the more viral post about two thirds of the time while avoiding reply-bait rewards. The free Tweet Tester at superx.so scores drafts without signup; the same engine ships inside SuperX via API, MCP, and CLI per the thread.
Problem: Creators need to know whether a draft will outperform their own baseline post before spending reach on reply bait or weak hooks.
Built for: X creators, growth operators, and agents drafting social copy who want a fast viral score loop with rewrite until peak.
First indexed on Jev Directory: 2026-09-17
Creator and team
- Name
- Rob Hallam
- Organization
- SuperX
- Handle
- @robj3d3
“Every post gets 61 questions in ~1s for $0.0004. Write, score, rewrite, stop when it peaks.”
How Jev is used
- Role in the product flow
- Parallel question pack per draft plus rewrite loop until score peaks
- Primitives
- NoulScore
- State in
- Draft post text only (per launch thread); population model uses nine thousand four hundred eighty one labeled posts from two hundred seven creators.
- Decision out
- Relative viral score versus creator baseline, help or hurt reasons, and guidance to rewrite until score peaks without rewarding reply bait.
- Author drafts post text in Tweet Tester or SuperX
- Jev answers sixty one parallel questions in about one second
- Score compared to fitted creator baseline
- Rewrite loop until score peaks or reply-bait flags fire
- Optional agent skill runs the same loop via MCP
SuperX treats each draft as a bundle of parallel Noul and Score style probes instead of one monolithic LLM rubric. Training data from thousands of real posts sets the baseline so the score means better or worse than this creator's normal, not a universal like count. The rewrite loop is explicit in the clip: draft, score, edit, stop at the peak. Reply-bait patterns are penalized rather than rewarded. Free users can try superx.so/tweet-tester without login; paid SuperX plans expose POST /v1/posts/viral-score, an MCP predict_viral_score tool, and superx posts:viral-score CLI per Rob's thread. This directory entry focuses on the shipped scoring path and attributed metrics, not unaudited accuracy guarantees.
Sourced performance claims
- Sixty one questions in about one second for about $0.0004 per draft in the launch clip.Source: robj3d3 X post 2100722975645598191
- Model fitted on nine thousand four hundred eighty one posts from two hundred seven creators; picks the viral post about two in three times.Source: robj3d3 X post and thread
- About six thousand free demo runs cost the builder about one dollar and four cents total (follow-up post).Source: robj3d3 X post 2100879539257938355
Features and stack
Features
- Free Tweet Tester without signup
- Sixty one parallel Jev questions per draft
- Rewrite-until-peak workflow in launch clip
- SuperX API, MCP, and CLI for the same scorer
Stack
- superx.so Tweet Tester
- SuperX API
- TypeSafe System One
Pricing: Tweet Tester is free with a five-post browser limit before SuperX upsell; in-product API billing follows SuperX plans.
Demo
Showcase clip with the same lightbox player as the homepage. Click to play.
SuperX viral post scoring
Sixty one Jev questions in a second, rewrite until the score peaks, and reply bait gets side-eyed. Tweet Tester is free; your drafts are not.
Links
FAQ
- Where is the free tool?
- superx.so/tweet-tester scores drafts in a simulated feed without signup, linked from Rob Hallam's launch thread.
- Does the score predict global virality?
- SuperX docs emphasize scoring relative to your own normal post at your follower size, not a universal like target.
- How do agents call the scorer?
- Rob's thread lists SuperX MCP predict_viral_score and CLI superx posts:viral-score alongside POST /v1/posts/viral-score.
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