For estimates at your own volume, use the pricing
calculator.
The unit
1 μ = $0.01 USD. The peg is fixed and will not be re-denominated, so a μ balance reads directly as a dollar amount. Charges are recorded in thousandths of a μ and rounded up, so a small model call can cost a fraction of a μ.Getting μ
1
Create an account
Create an account to explore the product. Nothing is billed until you buy μ.
2
Add a payment method
Save a card to buy μ in one step. Nothing is billed until you buy.
3
Buy more, or turn on auto top-up
Purchase any amount of μ in one click, or set a threshold and target so your balance
tops itself up automatically when it runs low. There’s no minimum purchase.
What you pay for
When the gateway calls a model to do work for you, that call is charged at its measured model cost: the tokens it used, at the model provider’s published prices, with no markup. A step that makes no model call costs nothing. In a Mnemom agent session (a conversation the gateway runs with Mnemom’s agent features on, such as context management or goal alignment), each successful request also has an inference share. The share is 4% of that request’s forwarded inference spend, priced at the provider’s published rates. For each request you pay the larger of two amounts, never both:- the measured cost of the gateway’s own model calls for that request: agent work (context folds, the goal-alignment judge, and implicit-goal calls) and, when governance is on, governance (the integrity analysis and Safe House level 2 screens);
- the 4% share.
v2026-10-share-3), such a call still counts toward that request’s comparison. It is
covered by the share first, and only the part above the share is charged. Before that
instant, it is charged at measured cost on its own line.
Observer trace analysis runs later, from your logs. From 2026-10-04 00:00 UTC (rate card
v2026-10-share-2), when it analyzes a request, its measured cost counts toward that
request’s comparison: the request is charged the larger of the 4% share and all of its
measured costs, observer included. If the share was already charged, the observer line
is covered by it first and only the part above the share is charged. Observer analysis
that is not tied to a request is charged at measured cost on its own line. Before that
date, observer analysis is always charged on its own line, on top of the comparison.
There is no minimum charge per request. A request that fails upstream is charged nothing.
Prices on this page match Mnemom rate card v2026-10-share.
Agent work in a Mnemom agent session
Governance
The inference share
API products with a fixed price
Work that needs no model call
What is not charged
- Your own model inference. When you send requests through the gateway with your own provider key (BYOK), the model call you asked for is passed through and your provider bills you for it. Mnemom does not resell it. Outside a Mnemom agent session there is no inference share. Inside one, the share replaces the measured cost of the gateway’s own model calls only when the share is larger.
- Work that needs no model call, as listed in the last table.
- Everything else on this site (agent registration, alignment and protection cards, the dashboard, reputation lookups) has no per-call charge today.
A worked example
A request in a Mnemom agent session forwards a model call that your provider prices at 0.03 (3 μ). At 1× that is 3 μ. Governance is on for this session. The integrity analysis uses 0.0004 (0.04 μ). At 1× that is 0.04 μ. The request’s charge is the larger of the two, 10 μ: the 3.24 μ of measured lines plus a 6.76 μ inference-share line. The request costs 10 μ in total. Had the measured lines come to more than the share, the request would have been charged their own cost and there would be no inference-share line.When your balance runs out
There is no overdraft and no credit line: your balance never goes below 0 μ. A charge your balance cannot cover is refused, and the gateway rejects requests with402 Payment Required (see
Errors) until you add
μ.
To avoid a gap, turn on auto top-up before you need it.
When μ expires
Each purchase or grant of μ is kept as a separate lot, and each lot has a 12-month expiry clock. The clock starts when you buy or receive the lot. Every charge except a settled reservation (below) restarts the clock on each lot it draws from. A lot that goes 12 months without such a charge expires, and its unspent μ is removed. The exception: a ResearchGrade run reserves μ when it starts and settles the reservation when it completes. Settling draws from your lots but does not restart their clocks. If ResearchGrade runs are all you spend μ on, a lot still expires 12 months after you bought it, or 12 months after the last other charge drawn from it. Granted μ is spent before purchased μ, and purchased μ is spent oldest first, so in normal use your oldest lots are the ones being drawn down.Checking your balance and usage
- Dashboard: www.mnemom.ai/settings/billing shows your current μ balance, and /settings/billing/usage breaks down consumption over time.
- API:
GET /billing/mureturns your org’s current μ balance,GET /billing/mu/ledgerreturns every ledger entry (grants, holds, settlements, refunds, expirations) behind that balance, andGET /billing/mu/statementreturns an itemized monthly statement for a givenYYYY-MMperiod. See the Mu balance, Mu ledger, and Mu statement endpoint references. - Payment methods and receipts:
GET /billing/payment-methodslists your saved payment instruments (tokenized, so full card numbers are never returned) andGET /billing/receiptslists your completed μ purchases. See the Payment methods and Receipts references. - CLI:
mnemom usage --org <org_id>shows per-person token and request consumption for an org, filterable by--days,--person,--provider, and--model. See the CLI reference.
Enterprise
An annual μ commitment unlocks a volume discount off the list peg. Retail purchases always stay at list price, with no discount tiers:
Enterprise also adds self-hosting (run the trust plane in your own infrastructure, same μ
accounting and peg) and dedicated cells (an isolated deployment in the region you choose).
Contact sales for a quote.
FAQ
What is μ?
What is μ?
μ is the unit you pay in. One μ is one US cent, and the peg is fixed.
What exactly am I charged for?
What exactly am I charged for?
The model calls the gateway makes for you, each at its measured model cost. In a Mnemom
agent session you also pay the inference share (4% of the request’s forwarded inference
spend) when it is larger than the agent work’s cost. Fixed-price API products are listed
above. Work that needs no model call is free.
Is Safe House screening free?
Is Safe House screening free?
Level 1 screening, which runs rules and makes no model call, is free. When a surface
escalates to level 2, that model call is charged at its measured cost.
How do I get my first μ?
How do I get my first μ?
Create an account, add a payment method, and buy μ. Nothing is charged until you buy.
What happens when my balance runs out?
What happens when my balance runs out?
Your balance never goes below 0 μ. A charge it cannot cover is refused, and the gateway
rejects requests with
402 Payment Required until you add μ. There is no overdraft. Buy more μ in one click at any time, or turn on auto top-up so your balance
refills once it drops below a threshold you set.Does μ expire?
Does μ expire?
Yes. Each lot of μ expires after 12 months without a charge drawn from it. The clock
starts at purchase, and every charge except a settled ResearchGrade reservation restarts
it. See “When μ expires” above.
Do features differ depending on how much μ I buy?
Do features differ depending on how much μ I buy?
No. Every feature is available to every account regardless of spend. Buying more μ buys
more work done, not more product.
Where can I see what I've spent?
Where can I see what I've spent?
Your dashboard’s billing pages show your balance and usage;
GET /billing/mu,
GET /billing/mu/ledger, and GET /billing/mu/statement expose the same data by API,
and mnemom usage shows per-person consumption from the CLI.