Nucleus
Start for $1
One memory · every supported model

Stop restarting your brain.

Nucleus carries the right context between leading AI models, so you can change the engine without rebuilding the conversation.

Start a $1 day pass Use an existing account

Metered compute allowance. No “unlimited” fine print. You see usage before it runs out.

context online
Continue the launch plan, but switch to Claude for the risk review.

3 memories applied · Claude Sonnet 5

I have the pricing decision, the production checklist, and the unresolved Supabase access issue. The largest launch risk is accepting payment before the usage reservation transaction is proven under concurrency…
Ask Nucleus anything…send

Day-pass model access

$1 Standard Day

Available now
Gemini 3.1 Flash Lite01
Grok 4.302
GLM 5.203

$5 Frontier Day

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Gemini 3.1 Flash Lite01
Grok 4.302
GLM 5.203
Gemini 3.1 Pro Preview04
GPT-5.505
Claude Sonnet 506
Claude Fable 507
GPT-5.5 Pro08

The $5 catalog is cumulative and includes every $1 model. Nucleus exposes only verified, cost-controlled Gateway models and adds them after capability, privacy, and unit-economics checks.

Context architecture

Memory that helps, not memory that hoards.

Embeddings do not make a model smarter. Nucleus uses them to retrieve a small, relevant layer of continuity—while recent turns and summaries carry the actual conversation.

Recent context

The newest turns stay verbatim so the current task never loses its thread.

01

Conversation summary

Older work becomes a compact running brief instead of an expensive transcript dump.

02

Semantic memory

Relevant preferences, decisions, and open loops return only when they help.

03

Honest metered pricing

Pay for access. Keep control of the meter.

Available now

Day Pass

$1once

A real one-off pass for quick work—no subscription trap.

  • 24-hour access
  • Economy text models
  • 25 compute credits
Try for $1
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Frontier Day

$5once

A larger 24-hour wallet for demanding reasoning and coding.

  • 24-hour access
  • Frontier model catalog
  • 200 compute credits
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Core

$19/month

Persistent history and portable context for everyday work.

  • Persistent cross-model memory
  • 500 monthly compute credits
  • Markdown + PDF exports
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Pro

$49/month

A larger monthly compute wallet for frequent frontier-model work.

  • Persistent cross-model memory
  • 2,000 monthly compute credits
  • Frontier models + data exports

$50 Creator Pack · coming after launch

Image and video credits will open only after asynchronous jobs, durable media storage, moderation, and exact per-generation pricing are verified.

Not sold yet
Hard spend caps Server-enforced model access Export and deletion controls