Updated October 2025
Claude by Anthropic offers an exceptional 200K token context window and project-based organization. It excels at analyzing large documents and maintaining context within a single conversation or project.
HeyContext takes a fundamentally different approach: instead of a large working memory, it provides permanent long-term memory that builds understanding across all conversations and never expires.
Memory that persists indefinitely
Learning across all conversations
Background insight extraction
Evolving understanding over time
Analyzing very large documents
Single-session deep work
Safety-critical applications
Project-based organization
Memory that persists permanently and evolves. Every conversation builds understanding that carries forward indefinitely. Context never expires or resets.
Memory builds across months and years
Insights extracted automatically
All conversations inform each other
A massive 200K token context window lets you work with huge amounts of information in a single session. Perfect for analyzing large documents or maintaining context in long conversations.
Context persists within project only
Resets when switching projects
No background processing between sessions
Free
50 API calls · ~10 conversations
Full features unlocked, no credit card required
$10/mo
100 API calls + overage billing
~20 conversations/month · Advanced insights
$25/mo
1,000 API calls + overage
~200+ conversations · Priority support · Lower overage rate
Free
Claude Sonnet 4 access
Limited usage · 200K context window
$20/mo
Claude Pro
5x usage limit · Claude Opus 4 access · Priority access · Early features
Building Context Over Time
Projects spanning weeks, months, or years
Cross-Project Learning
Want insights from all your work to inform new projects
Automatic Memory Building
Don't want to manually maintain context
Background Insights
Want AI processing happening passively
Better Value at Scale
$10/mo vs $20/mo for ongoing use
Analyzing Large Documents
Working with 50+ page documents in single sessions
Single-Session Deep Work
Need massive context within one conversation
Safety-Critical Applications
Anthropic's exceptional safety measures
Project-Based Workflow
Prefer organizing work into separate projects
Long-Form Writing Analysis
Exceptional at analyzing and generating long content
Building a product with evolving requirements, design decisions, and feature discussions spanning half a year.
HeyContext
Remembers every decision and why you made it. Context builds continuously. Old decisions inform new features automatically.
Claude
Excellent for deep analysis within each project session, but you'll need to re-upload context for new project phases.
Need to deeply analyze a very long document right now, with lots of back-and-forth discussion.
HeyContext
128k context window is good but may require breaking very large documents into sections.
Claude
200K token window handles entire document easily. Exceptional long-form analysis and comprehension.
Working on 3 different projects where insights from one should inform the others.
HeyContext
All projects share memory. Patterns from Project A automatically inform Project B. Cross-project learning happens naturally.
Claude
Projects are isolated. You'll manually transfer context between project folders.
Absolutely. Many users use Claude for single-session document analysis and deep dives, while using HeyContext for long-term memory and cross-project learning. They complement each other well.
200K tokens is roughly 150,000 words or about 500 pages of text. It's the amount of information Claude can hold in its "working memory" during a single conversation. HeyContext has a smaller working memory (128k tokens) but permanent long-term memory.
It depends. Claude excels at analyzing large documents in single sessions. HeyContext excels at building understanding over weeks/months of research. For ongoing research where context builds over time, HeyContext is better. For one-time deep document analysis, Claude shines.
Yes, but even better. While Claude isolates across conversations, HeyContext's memory spans all your work. Insights from one project automatically inform others. Think of it as one unified memory rather than separate project folders.
Not currently, but we are working on it. It is on our roadmap. You can export your Claude conversations and import them into HeyContext. The AI will process them and build understanding from your past interactions. There's a guide in settings to help with the process.