← Career OSTrust is our entire fundraising mechanism — there is no paywall. So we publish how the money works. Assume ~2% of active users donate ~$4/month: at 10,000 users that's roughly $800/month. Our whole cost base is engineered to land under it.
Live AI gateway (this server)
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Every AI action passes through one gateway that picks the cheapest capable model, serves cached results when it can, meters each user, and hits a hard budget kill switch before it can ever drain the account.
Planned monthly cost at 10,000 users
LLM inference
Gateway routing, hard caching, per-user caps, shared insights.
$150 – $350
Database (Postgres)
pgvector avoids a separate vector DB.
$50 – $120
Redis (cache/queue)
Pays for itself many times over in avoided inference.
$15 – $40
Object storage + egress
R2/B2 zero-egress keeps downloads free to serve.
$5 – $25
Hosting (app + workers)
Autoscale off at low traffic.
$40 – $100
Email / notifications
Transactional email on a volume tier.
$10 – $30
Job data ingestion
Free/official sources first.
$0 – $80
Auth + monitoring
Free tiers cover early scale.
$0 – $55