X (Twitter)

Summary: X is the real-time distribution channel for technical threads, paper announcements, and community engagement. 280 chars standard (25K for Premium Articles); threads get 2–3× engagement; media boosts impressions; optimal timing 7–9 AM / 5–7 PM PST weekdays for tech audience.

Platform Constraints (2024–2025)

Constraint	Limit	Notes
Standard post	280 characters
Premium Article	25,000 characters	Long-form, formatted
Thread	Connect with +	2–3× engagement of single post
Images	Up to 4 per post	1600×900 optimal
Video	2:20 (std) / 3 hr (Premium)	Native upload preferred
GIF	1 per post
Polls	4 options, 7 days max

Algorithm Signals (2024 Open Source + Community Analysis)

Signal	Weight	Notes
Engagement (likes, RTs, replies, profile clicks)	~50%	Replies weighted heavily
Interest graph (follows + interactions)	~25%	Who you engage with
Recency	~25%	Half-life ~20 min for tweets
Media attachment	Boost	Images/video get more impressions

Thread mechanics:

• First tweet = hook (same rules as LinkedIn hook)
• 1/N numbering convention
• Reply to own thread with substantive content (not just "🧵")
• Final tweet: link to canonical (blog/Substack/GitHub)

Optimal Posting Schedule (Tech/AI 2024–2025)

Window (PST)	Window (UTC)	Days
7–9 AM	15–17 UTC	Tue–Thu
5–7 PM	1–3 UTC	Tue–Thu
Thread drop	8–10 AM PST (16–18 UTC)	Tue–Thu

Thread-to-Blog Cross-Posting Template

1/N 🧵 Paper breakdown: [Paper Title]

Key idea in one sentence: [hook]

2/N Problem: [what was missing]

3/N Insight: [key innovation]

4/N Method: [diagram/architecture]

5/N Results: [key metric + comparison]

🧵 Full deep-dive with code/diagrams: [canonical URL]

#TopicTag1 #TopicTag2 #BrandedTag

Related Entities

• substack — Canonical long-form platform
• linkedin — Professional distribution
• huggingface — Technical content platform

Sources

See frontmatter sources array (3 sources: X Help, Algorithm analysis, Timing analytics).