
New
Human advisement & personalized intelligence for the beginning.
Built for solo, early-stage founders—equipping you with the strategy, tools, resources, guidance, and personalized intelligence needed to navigate uncertainty, make better decisions, and build from zero.
Built for solo, early-stage founders—equipping you with the strategy, tools, resources, guidance, and personalized intelligence needed to navigate uncertainty, make better decisions, and build from zero.
Human advisement & personalized intelligence for the beginning.
New
Founder Context
Advisory Build
Intelligence Hub
Personalized Advisor
Continued Guidance
We start by understanding you, not just the business. Your goals, experience, skills, interests, constraints, ambitions, idea, and the context surrounding what you are trying to build.
Seedcore
Search
Dashboard
My Library · Collections · Reading Queue · Notes · Highlights · Knowledge Graph · AI Search · Writing Assistant
Dashboard
Search papers, authors, notes or ask AI
+ Import Paper
My Library 312 papers
Sparse Attention under Long-Context Load
Nature Machine Intelligence
April 2026 · 26 pages
NATURE MACHINE INTELLIGENCE · APRIL 2025
Sparse Attention under Long-Context Load
Keiko Nakamura, Rafael Alvarez, Dela Orsei
Long-context models are increasingly deployed in real-world applications where documents can span thousands of tokens. Our results show that performance depends on attention allocation across long contexts.
3.2 Sparse Attention under Long-Context Load
We evaluate sparse attention across three benchmark datasets with varying context lengths.
Journal
Nature Machine Intelligence
Publication Date
April 2026
Authors
Keiko, Rafael, Dela +1
Research Field
Machine Intelligence
Reading Time
18 min
Citation Count
412
Founder Context
Advisory Build
Intelligence Hub
Personalized Advisor
Continued Guidance
We start by understanding you, not just the business or early concept.

>>
Seedcore was designed as a lean, modern advisory model for solo founders navigating the earliest stages of building a business. Synthesizing human advisement and intelligent data together.
Seedcore was designed as a lean, modern advisory model for solo founders navigating the earliest stages of building a business. Synthesizing human advisement and intelligent data together.
ideas
concepts
questions
assumptions
discovery
diagnosis
research
signals
insight
clarity
direction
validation
positioning
priorities
decisions
strategy
development
testing
execution
evidence
iteration
momentum
ideas
concepts
questions
assumptions
discovery
diagnosis
research
signals
insight
clarity
direction
validation
positioning
priorities
decisions
strategy
development
testing
execution
evidence
iteration
momentum
THINGS WE DO
Supporting solo founders across the earliest stages—from early ideas and pre-revenue builds to young companies getting their feet wet.
Supporting solo founders across the earliest stages—from early ideas and pre-revenue builds to young companies getting their feet wet.
Every engagement is custom designed around the founder, the business, and its current stage. The areas below are common points of focus, not a fixed scope.
Every engagement is custom designed around the founder, the business, and its current stage. The areas below are common points of focus, not a fixed scope.
01 | IDEATION
Testing / validating the idea
Concept development
Opportunity exploration
Exploring & Developing Ideas
Market landscape & understanding
Customer needs / desires
Finding deltas, gaps, & opportunities
Markets, Customers & Opportunities
02 | RESEARCH
Utilizing existing founder strengths
Leveraging available resources
Tools, automation, & leverage
Building Around the Founder
03 | LEVERAGE
Utilizing existing founder strengths
Leveraging available resources
Tools, automation, & leverage
Building Around the Founder
03 | LEVERAGE
Structuring the offer & model
Refining pricing & approach
Designing how the business works
Developing Offers & Business Models
04 | MODELING
Structuring the offer & model
Refining pricing & approach
Designing how the business works
Developing Offers & Business Models
04 | MODELING
Setting core priorities / focus
Refining the direction & vision
Making key early-stage decisions
Shaping Strategy & Direction
05 | STRATEGY
Setting core priorities / focus
Refining the direction & vision
Making key early-stage decisions
Shaping Strategy & Direction
05 | STRATEGY
Clarifying market position
Strengthening the value prop
Standing apart from alternatives
Positioning & Differentiating
06 | POSITIONING
Clarifying market position
Strengthening the value prop
Standing apart from alternatives
Positioning & Differentiating
06 | POSITIONING
Defining what to build
Prioritizing features / offers
Strategic launch & GTM
Guiding Product & Launch Decisions
07 | PRODUCT
Defining what to build
Prioritizing features / offers
Strategic launch & GTM
Guiding Product & Launch Decisions
07 | PRODUCT
Finding customer channels
Developing the sales approach
Improving the path to revenue
Building Sales & Revenue Strategies
08 | REVENUE
Finding customer channels
Developing the sales approach
Improving the path to revenue
Building Sales & Revenue Strategies
08 | REVENUE
Turning strategy into real action
Prioritizing next moves
Building short-term plan
Planning Execution & Next Steps
09 | EXECUTION
Turning strategy into real action
Prioritizing next moves
Building short-term plan
Planning Execution & Next Steps
09 | EXECUTION
IDEATION
Testing / validating the idea
Concept development
Opportunity exploration
Exploring & Developing Ideas
Market landscape & understanding
Customer needs / desires
Finding deltas, gaps, & opportunities
Markets, Customers & Opportunities
RESEARCH
Utilizing existing founder strengths
Leveraging available resources
Tools, automation, & leverage
Building Around the Founder
LEVERAGE
Structuring the offer & model
Refining pricing & approach
Designing how the business works
Developing Offers & Business Models
MODELING
Setting core priorities / focus
Refining the direction & vision
Making key early-stage decisions
Shaping Strategy & Direction
STRATEGY
Clarifying market position
Strengthening the value prop
Standing apart from alternatives
Positioning & Differentiating
POSITIONING
Defining what to build
Prioritizing features / offers
Strategic launch & GTM
Guiding Product & Launch Decisions
PRODUCT
Finding customer channels
Developing the sales approach
Improving the path to revenue
Building Sales & Revenue Strategies
REVENUE
Turning strategy into real action
Prioritizing next moves
Building short-term plan
Planning Execution & Next Steps
EXECUTION
WHO WE HELP
Seedcore is for the solo. The beginner. The first-timer. The big dreamer.
Seedcore is for the solo. The beginner. The first-timer. The big dreamer.
Starting a business shouldn't just be for the venture-backed, hyper-connected, growth startup. It should be for everyone.
Starting a business shouldn’t just be for the venture-backed, hyper-connected, growth startup. It should be for everyone.
Idea / Concepts
An early idea with potential, still being shaped into a clear business direction.
Idea / Concepts
An early idea with potential, still being shaped into a clear business direction.
Pre-Revenue
A business being built, tested, or prepared for market before consistent sales begin.
Pre-Revenue
A business being built, tested, or prepared for market before consistent sales begin.
Early Companies
A live business with early customers, usage, or revenue, but limited consistency so far.
Early Companies
A live business with early customers, usage, or revenue, but limited consistency so far.
ADVISEMENT & INTELLIGENCE
Human judgment for the earliest decisions.
Human judgment for the earliest decisions.
We help you make sense of the uncertainty, weigh the tradeoffs, and decide what deserves your attention next.
We help you make sense of the uncertainty, weigh the tradeoffs, and decide what deserves your attention next.
Explore Our Advisement
Built around the founder, not just the idea.
Built around the founder, not just the idea.
The quality of an early decision depends on more than the business itself. We look at the founder, skills, resources, constraints, ambitions, market, and surrounding context so the direction actually fits the person responsible for carrying it forward.
The quality of an early decision depends on more than the business itself. We look at the founder, skills, resources, constraints, ambitions, market, and surrounding context so the direction actually fits the person responsible for carrying it forward.
Advice shaped around your real constraints
Advice shaped around your real constraints
Direction that fits how you can actually build
Direction that fits how you can actually build
We turn uncertainty into a position.
We turn uncertainty into a position.
Early-stage founders rarely suffer from a lack of options. The harder problem is deciding which path has the strongest justification. We research, challenge assumptions, weigh tradeoffs, and form a clear position on what we believe should happen next and why.
Early-stage founders rarely suffer from a lack of options. The harder problem is deciding which path has the strongest justification. We research, challenge assumptions, weigh tradeoffs, and form a clear position on what we believe should happen next and why.
Move from possibilities to a defensible decision
Move from possibilities to a defensible decision
Understand the reasoning behind the recommendation
Understand the reasoning behind the recommendation
We help you spend limited resources correctly.
We help you spend limited resources correctly.
At the beginning, attention, time, money, and energy are unusually scarce. We help determine which problems deserve those resources now, which can wait, and which should be ignored entirely before unnecessary work begins to compound.
At the beginning, attention, time, money, and energy are unusually scarce. We help determine which problems deserve those resources now, which can wait, and which should be ignored entirely before unnecessary work begins to compound.
Concentrate effort on the highest-leverage work
Concentrate effort on the highest-leverage work
Avoid spending heavily on unproven assumptions
Avoid spending heavily on unproven assumptions
Intelligence built around the work.
Intelligence built around the work.
A project-aware layer of research, context, advisory thinking, and early-stage knowledge designed to help you make better decisions as the business develops.
A project-aware layer of research, context, advisory thinking, and early-stage knowledge designed to help you make better decisions as the business develops.
Explore Our Intelligence
Built from more than one engagement.
Built from more than one engagement.
Seedcore draws from research, founder cases, business patterns, frameworks, prior advisory work, and lessons gathered across the earliest stages. The result is broader pattern recognition without forcing your company into somebody else’s playbook.
Seedcore draws from research, founder cases, business patterns, frameworks, prior advisory work, and lessons gathered across the earliest stages. The result is broader pattern recognition without forcing your company into somebody else’s playbook.
Benefit from patterns beyond your own experience
Benefit from patterns beyond your own experience
Apply relevant precedent without copying it blindly
Apply relevant precedent without copying it blindly
Your entire project stays in context.
Your entire project stays in context.
Your business should not become a blank prompt every time a new question appears. The intelligence layer carries forward your founder context, research, deliverables, recommendations, decisions, constraints, and previous work so each answer starts further ahead.
Your business should not become a blank prompt every time a new question appears. The intelligence layer carries forward your founder context, research, deliverables, recommendations, decisions, constraints, and previous work so each answer starts further ahead.
Skip the repeated explanation and get to the decision
Skip the repeated explanation and get to the decision
Receive answers grounded in the work already completed
Receive answers grounded in the work already completed
The advisement stays useful after delivery.
The advisement stays useful after delivery.
A recommendation is most valuable when it can survive contact with reality. As customers respond, assumptions change, and new problems emerge, you can revisit the original thinking, test new information against it, and bring important decisions back to Seedcore when deeper judgment is needed.
A recommendation is most valuable when it can survive contact with reality. As customers respond, assumptions change, and new problems emerge, you can revisit the original thinking, test new information against it, and bring important decisions back to Seedcore when deeper judgment is needed.
Adapt the strategy as real evidence arrives
Adapt the strategy as real evidence arrives
Keep using the work instead of shelving the deliverables
Keep using the work instead of shelving the deliverables
HOW IT WORKS
Frictionless & productized advisory.
Frictionless & productized advisory.
We stripped away the parts of consulting that do not serve the beginning. No bloated retainers, no sprawling scopes, no months of process. Just concentrated advisory work built around the decisions in front of you.
We stripped away the parts of consulting that do not serve the beginning. No bloated retainers, no sprawling scopes, no months of process. Just concentrated advisory work built around the decisions in front of you.
Adaptive Onboarding
Adaptive Onboarding
Human Advisory Workup
Human Advisory Workup
Structured Build & Delivery
Structured Build & Delivery
Project-Aware Intelligence
Project-Aware Intelligence
Application & Human Support
Application & Human Support
01
01
Onboarding made simple.
Onboarding made simple.
[ui illustration]
PRICING
PRICING
A smarter way to receive early advisement.
A smarter way to receive early advisement.
Every engagement begins with the same one-time purchase: $400 advisory. From there, continue independently, keep Seedcore Intelligence available, or work closely with us through guided implementation.
Every engagement begins with the same one-time purchase: $400 advisory. From there, continue independently, keep Seedcore Intelligence available, or work closely with us through guided implementation.
Explore Pricing

Seedcore Advisory
A comprehensive, productized advisory engagement designed for early-stage solo founders and built to produce clearer direction, stronger decisions, and real progress.
Purchase $400.00
Learn More

Seedcore Advisory
A comprehensive, productized advisory engagement designed for early-stage solo founders and built to produce clearer direction, stronger decisions, and real progress.
Purchase $400.00
Learn More
EXTENSION OPTION ONE
Seedcore Intelligence
$14.00/per month
Keep the thinking behind your advisory accessible as the business changes. Ask project-aware questions without having to re-explain the company, the strategy, or the work already completed.
EXTENSION OPTION TWO
Guided Implementation
starting at $600.00
Keep Seedcore directly involved while you put the advisory into practice. We help interpret new evidence, review decisions, adjust the direction, and work through the difficult parts of execution with you.
Extensions
After the product engagement:
OPTION ONE
OPTION TWO
Seedcore Intelligence
$14.00/per month
A project-aware AI advisor that helps you apply Seedcore’s human strategy to new questions, decisions, and changes as the business develops.
Explore Full Pricing
FAQs
Common questions.
What exactly is Seedcore?
Who is Seedcore designed for?
What do I actually receive from a Seedcore engagement?
How is Seedcore different from traditional consulting?
What kinds of problems can Seedcore help me solve?
Does Seedcore help with implementation, or only strategy?
Seedcore is advisement and intelligence for early-stage solo founders. We make it easier to start and build a business by helping founders avoid common mistakes, make better decisions, and stay on the right trajectory through the difficult early stages. In the broadest sense, it is consulting—but rebuilt to be lighter, faster, and more useful for the modern founder.
FAQs
Common questions.
What exactly is Seedcore?
Who is Seedcore designed for?
What do I actually receive from a Seedcore engagement?
How is Seedcore different from traditional consulting?
What kinds of problems can Seedcore help me solve?
Does Seedcore help with implementation, or only strategy?
Your Dream Business Starts Here.
Start the right way: with clearer direction and a faster path to revenue.
Start With Seedcore Today
SEEDCORE
Advisement and intelligence for early-stage solo founders.
© 2026 Seedcore Co.
Your Dream Business Starts Here.
Start the right way: with clearer direction and a faster path to revenue.
Start With Seedcore Today