Pricing

Start free. Scale as you grow.

Every atom call is metered. Pure atoms (diff, score, store, recall) are nearly free. LLM atoms (interpret, match, explain) cost per token.

Build vs. buy

~$200K+

Build it yourself

3–6 months of engineering: diff logic, LLM prompts, state management, storage, observability, and delivery.

$49/mo

SemiSift Starter

5,000 atom calls/month, 50K stored signals, ready in 5 minutes. No prompts to maintain.

Free
$0/mo
  • 100 atom calls / month
  • 1,000 stored signals
  • 10 req / minute
Starter
$49/mo
  • 5,000 atom calls / month
  • 50,000 stored signals
  • 60 req / minute
ProPopular
$149/mo
  • 50,000 atom calls / month
  • 500,000 stored signals
  • 300 req / minute
Enterprise
Custom
  • Unlimited volume
  • Unlimited stored signals
  • 1,000 req / minute
  • Dedicated support