How is Lumis different from Substack Reads?

Lumis synthesizes multiple AI/tech research sources (Hacker News, arXiv, The Batch, Latent Space) into a single daily briefing delivered to your inbox. Substack Reads focuses on Substack's own curated newsletter. Lumis works passively — you receive your briefing each morning — while Substack Reads requires more active engagement.

What does Lumis cost?

Founding members lock in at $9/mo — a fraction of most comparable services. That's 499 of the first 500 founding spots remaining before pricing increases.

Does Lumis cover the same sources as Substack Reads?

Lumis synthesizes Hacker News, arXiv cs.AI, deeplearning.ai (The Batch), and Latent Space — the original research signals, not newsletter summaries of them. If Substack Reads covers these sources, Lumis brings them together into one ranked, AI-synthesized briefing.

Lumis vs Substack Reads

Which AI research tool saves your time? Compare features, depth, and pricing.

Feature	Lumis	Substack Reads
HN, arXiv, The Batch, Latent Space — not newsletter summaries	✓	✗
LLM synthesizes multiple sources in one briefing	✓	✗
Shareable /i/:slug URLs + community ranking	✓	✗
AI-tagged: Breakthrough / Important / Noteworthy	✓	✗
Covers Substack posts and newsletter trends	✗	✓
Recommends newsletters based on your interests	✗	✓
Available to Substack writers and readers	✗	✓

Live sample briefing

What you receive in your inbox each morning — today's actual Top 3

Today's top 3 — Lumis

Monday, August 24, 2026

risk

Safety alignment is superficial: LLMs hide harmful intent in latent space, bypassing refusal triggers

Refusal-based guardrails don't block harmful intent encoded in latent space—deployed LLMs need deeper probing now.

opportunity

Nexus cuts agentic LLM prefill cost by splicing KV-cache across turns on MCP tool registries

Nexus reduces prefill costs at scale for MCP tool registries—direct TTFT gains for production agentic pipelines.

shift

Qwen 3 8B/27B completes a real reverse-engineering task in 30 minutes, rivaling frontier models

Frontier-level RE capability now runs locally under 30B params, forcing security teams to rewrite attacker threat models.

Lock founding price → See full sample

If you currently use Substack Reads

What changes with Lumis: Lumis goes upstream — covering the original sources (HN, arXiv, The Batch) so you get insights before they appear in a newsletter.

What Substack Reads does better: Substack Reads curates the best posts and newsletters across the Substack network. Great for keeping up with the publishing platform.

Comparison searches are the warmest intent on the web — you're mid-evaluation, not browsing casually. Lumis is built for the researcher who wants the signal without the overhead. Lock the founding price before the first 500 spots fill.

⚡ Founding member pricing