Skip to main content
Noesis offers three plans designed to scale with the depth and intensity of your research workflow. Origin is free forever and gives you the full non-linear experience — branching, concept mapping, document uploads, and standard AI models. Synthesis unlocks premium models, real-time collaboration, and unlimited Spaces. Noesis is for power users who need maximum usage headroom, early access to experimental features, and priority support.

Origin

FreeWhere ideas begin.The complete core Noesis experience, free forever. No credit card required.
  • Standard AI models: Gemini 3.5 Flash, Claude Haiku 4.5, GPT 5.4 Mini, Grok 4.3
  • Document uploads (PDF, DOCX)
  • Unlimited conversation branching & merging
  • Interactive concept mapping (Session & Global maps)
  • Web search integration & Markdown export

Synthesis

$11.99 / monthWhere thoughts connect.Everything in Origin, plus the tools you need to collaborate and go deeper.
  • Everything in Origin, plus:
  • More usage
  • All models: Claude Opus 4.8, GPT 5.5, Gemini 3.1 Pro, and more
  • Real-time collaboration & sharing (online presence, live editor)
  • Unlimited workspaces (Spaces) and projects
  • AI-generated summaries and concept linking

Noesis

$23.99 / monthWhere knowledge crystallizes.Everything in Synthesis, plus maximum usage and priority access for power researchers.
  • Everything in Synthesis, plus:
  • 5× more usage than Synthesis
  • Ideal for heavy premium model usage (GPT 5.5 Pro, Claude Opus 4.8)
  • Priority support & feature requests
  • Early access to experimental features

​
Frequently Asked Questions

Yes. You can upgrade or downgrade your plan at any time from Account Settings → Subscription. Upgrades take effect immediately, giving you instant access to higher-tier features. Downgrades take effect at the end of your current billing period — you keep your existing tier’s benefits until then.
Usage is based on the number of AI model tokens consumed across your conversations. Premium models — such as Claude Opus 4.8 and GPT 5.5 — consume tokens at a higher rate than standard models like Gemini 3.5 Flash or Claude Haiku 4.5. The Synthesis plan includes a meaningfully higher usage allowance than Origin, and the Noesis plan gives you 5× the usage of Synthesis, making it well suited for intensive, multi-branch research sessions.
There is no time-limited trial, but the Origin free plan is designed exactly for this purpose. It gives you full access to branching, concept mapping, document uploads, and standard AI models so you can thoroughly evaluate the Noesis experience before deciding to upgrade. We want you to be completely confident the product fits your workflow before you commit to a paid plan.
Noesis accepts all major credit and debit cards, processed securely via Stripe. You’ll be billed in USD at the start of each monthly billing cycle.
No. Due to the significant compute, API, and infrastructure costs involved in delivering real-time AI responses and branching context management, Noesis does not offer refunds or credits for any subscriptions or purchases. Payments for a billing cycle are final and non-refundable once processed.That said, when you cancel your subscription you retain full access to your paid plan’s features through to the end of the current billing period — no access is cut off early. For full details, see the Refund Policy.
Yes, all prices are in USD. You can cancel your subscription at any time through Account Settings → Subscription — no hoops to jump through. Cancellation takes effect at the end of your current billing period, so you always get the full value of what you’ve paid for.
All prices shown in USD. You can cancel at any time through your Account Settings.