lemonpad
A visual canvas for AI

See and control
what your AI knows.

Lemonpad is a visual canvas for working with AI. Put your notes, files, ideas and AI conversations in one place, then decide what each conversation gets.

Try Lemonpad — no account needed.

Launch StrategyCanvas
Context routing100%
Market Research.pdfPDF • 2.4 MB
GPT-4o
Pricing strategy
Context · 0
Synthesizing context…
Ask follow-up…
Pricing notesMust include free tier. Max $15/mo.
GPT-4o
User pain points
Context · 0
Synthesizing context…
Ask follow-up…
User interviewsOverwhelmed by messy tabs; love visual cards.
Claude 3.5
Launch strategy
Context · 0
Synthesizing context…
Ask follow-up…
Focus on studentsPilot with campus clubs first.
The Problem

AI chat is linear. Your thinking isn't.

Context gets hard to track. Once files, instructions, and earlier messages pile up, it becomes difficult to see what matters to a conversation.

Traditional Chat Fragmented

Context scattered across tabs and threads

Notes live in one app, research PDFs in another, and prompts in a linear chat scroll. Whenever you want to explore a new angle, you have to paste the backstory again.

Tab 1: Research.pdf (copied snippet)
Tab 2: Pricing constraints in notepad
Chat Prompt (dumping everything):
"Here is the research from earlier, plus our budget, ignore turn 3..."
Result: Linear buffer grows stale · Unclear what the model remembers
Lemonpad Canvas Connected

Context and conversations together on one canvas

Notes, files, and AI branches stay connected in one visual space. You choose the exact sources that feed each conversation, branch anywhere, and see what every model knows.

Research.pdf
Routes to 2 branches
↓ Connected context routing ↓
Branch A: Pricing
Context: PDF + Notes
Branch B: Pain Points
Context: PDF + Interviews
Result: Visible context · Independent branches · Clear reasoning structure
Context Control

Decide what each conversation sees.

Connect files, notes, and previous AI conversations to the exact branch that needs them. Keep each conversation focused, introduce context downstream, and see what every model knows.

01

Decide what each conversation sees

Connect the specific notes, files, or previous conversations relevant to each branch instead of dumping everything into one prompt buffer.

One source file routes to two distinct research branches.

02

Branch without losing the thread

Take any promising idea down a new direction. Give that branch different context, add constraints downstream, and explore alternatives.

Branch from user interview findings with new target constraints.

03

Think alongside AI

Human notes, judgments, and decisions remain first-class objects on the canvas alongside AI responses rather than getting lost in a chat transcript.

Add your own conclusions and synthesis between AI turns.

Authentic Context Provenance

See and control what this AI knows

Every AI conversation on Lemonpad makes its sources explicit. You see the token count, which files and notes are included, and can mute or disconnect sources anytime.

CONTEXT2.4k / 128k · 1.9%
Connected Sources (2 active)Active
Market Research.pdf
Included · 1.8k tokens
Pricing constraints note
Prompt context updates dynamically as sources are connected or muted.
Interactive Canvas

Try routing context yourself

Connect different notes to different AI conversations. See how the context you choose directly shapes each reasoning path and downstream branch.

Launch Planning / Context WorkbenchInteractive preview · click any context note to route it
Product Research.pdfShared Source · 24 pp

Customer discovery interviews, MVP feature requests, and market benchmarks.

Available Context ObjectsClick to connect or disconnect from AI conversations
GPT-4o
Conversation A · Monetization
Product Research.pdf
Question: “Propose pricing and monetization tiers based on our research.”
Base response (PDF only)

Standard SaaS tiers: Free, Pro ($29/mo), and Enterprise. Recommend annual upfront commitments.

GPT-4o
Conversation B · MVP Priorities
Product Research.pdf
Question: “Identify the critical MVP launch blockers.”
Base response (PDF only)

Technical blockers: database schema migrations and automated backup pipelines.

Branching & Context

Explore without losing the thread

Branch from any conversation, give different context to different branches, and keep your notes, files, and AI work connected.

Precise context

Control what each AI knows

Connect specific notes, files, and previous conversations to the branch that needs them instead of pasting everything into one prompt.

Branching

Explore without losing the thread

Branch from any conversation turn to test another direction with different context, while preserving the original reasoning path.

Evolving context

Add context as thinking evolves

Assumptions change and questions evolve. Introduce new files, notes, or constraints at any step downstream.

Visual canvas

Notes, files, and AI together

Sticky notes, research files, sketch shapes, and human decisions live alongside AI responses on one open workspace.

View-only links

Share the full context map

Send a view-only link. Collaborators can inspect the exact context, notes, and branches that produced the conclusions.

4 models

The right model for the step

Use Claude, GPT, or Gemini wherever it fits your reasoning. Swap models per branch without resetting your context map.

Nonlinear Thinking

Built for nonlinear thinking

Linear chats force A → B → C → D. Lemonpad allows A → B, A → C, and B + note → D. You see the reasoning structure instead of navigating an endless transcript.

Dimension
Traditional AI Chatbot
Lemonpad Canvas
Controlling context
All conversation history dumps into one linear prompt buffer
Connect only the specific notes and files each AI conversation needs
Context visibility
Context gets hard to track as earlier messages and files pile up
Clear context provenance: see the exact connected sources per branch
Exploring alternatives
Linear thread forces A → B → C → D; new directions pollute history
Spatial branching allows A → B, A → C, and downstream combination
Adding late information
Scroll up, re-prompt, or start a new chat from scratch
Attach new files or notes downstream whenever thinking evolves
Human judgment
Your notes and thoughts disappear inside the message feed
Sticky notes, specs, and decisions remain first-class on the canvas
Sharing findings
Export a static transcript or screenshot with missing context
Share an interactive view-only link where others can explore the map
Transparent Pricing

Simple, predictable plans

Every plan includes a monthly AI allowance. There is no usage-based billing: when included credits run out, AI generation pauses until they renew or you upgrade.

STARTER

Free

$0/ month

For trying the canvas and working through your first ideas.

  • $1 of AI usage included each month
  • 1 GB storage, files up to 10 MB
  • 3 canvases
  • Claude Haiku 5.5, GPT-6 Luna, Gemini 3.8 Flash, DeepSeek V4.1 Flash, Qwen 3.8 Flash, GLM 5.3 Flash & MiniMax M3
  • Notes, files and links as AI context
POPULAR
PROFESSIONAL

Pro

$19/ month

For regular work with premium AI models on the same canvas.

  • $15 of AI usage included each month
  • Unused included credits roll over
  • 50 GB storage, files up to 100 MB
  • 10 canvases
  • Everything in Free, plus Claude Sonnet 5.5, GPT-6.1 Sol, Gemini 3.1 Pro, DeepSeek V4 Pro, Qwen 3.8 Max & GLM 5.3
  • Share a view-only canvas link
MOST AI USAGE

Max

$49/ month

For people who need the most included AI usage and storage.

  • $45 of AI usage included each month
  • Unused included credits roll over
  • 500 GB storage, files up to 500 MB
  • 20 canvases
  • Every Pro model, plus Claude Opus 5.5 & Kimi K3
  • Share a view-only canvas link
Frequently Asked Questions

Everything you need to know

Got questions about models, credits, privacy, or trying the canvas without an account?

On Lemonpad, context is visual and explicit. Instead of dumping everything into one long chat scroll, you connect specific notes, files, or previous AI outputs to the AI conversation that needs them. Different conversations on the same board can receive completely different context.
Get Started

Give your AI the context it actually needs.

Stop rebuilding context across disconnected chats. Connect your notes, files, ideas and AI conversations on one canvas, then decide what each conversation gets.

Try Lemonpad — no account needed.