The distinction between an open-market buy and a directly negotiated deal is not simply a question of buying mechanism. It is a question of what is being agreed, who has approved it, what rights attach to the commitment, and what the record shows when something goes wrong. These differences matter in any media context, but they become particularly significant in CTV, where premium inventory is predominantly deal-based, the stakes of a brand safety failure are higher, and the complexity of the deal terms exceeds what a simple auction transaction involves.

How does an open exchange CTV buy differ from a direct deal?

An open exchange buy in CTV is a bid-based transaction. The buyer specifies targeting parameters and a maximum CPM. The exchange runs an auction when a matching impression becomes available. If the buyer wins, the impression is served. The transaction is completed in milliseconds. The buyer's only commitment is to pay the winning price for the impression they won. There is no pre-agreed content context, no guaranteed volume, and no negotiated terms beyond the targeting and price parameters the buyer set going in.

A direct deal negotiated by an AI buyer is a categorically different arrangement. The buyer and seller agree specific terms before any delivery takes place: the inventory package, the price, the volume commitment, the targeting parameters, the content adjacency requirements, the viewability floor, and the remediation mechanism if delivery falls short. The commitment is bilateral and in advance. It creates obligations on both sides that persist through the campaign flight.

What approval rights apply to each buying type?

Open exchange buying can be automated at the impression level without human approval of individual transactions, because each transaction is a standardised low-value event governed entirely by the parameters set in advance. The human approved the parameters; the system executes within them. This model is well-established and the governance question is whether the parameters were set correctly, not whether each individual transaction was approved.

Direct deal negotiation is different. The AI buyer is agreeing bespoke terms on behalf of the buyer's organisation, terms that are specific to a particular inventory package and that create a financial obligation that cannot be undone once committed. This type of commitment should require human approval before it executes. The approval is not of a parameter set applied across many transactions. It is of a specific deal with a specific counterpart.

How does the deal structure differ in an agent-negotiated CTV deal?

An agent-negotiated CTV deal includes terms that an open exchange buy does not. The content adjacency agreement: which content categories the buyer's ads can appear adjacent to, and which are excluded. The viewability commitment: a minimum floor that the seller commits to maintaining. The audience guarantee: a representation that the targeting parameters will be honoured as described. The remediation mechanism: what happens if delivery falls short of committed terms.

These terms exist in the deal structure because the buyer is committing in advance to a specific package, and they need contractual protection against the package not delivering as described. An open exchange buy does not require these protections because the buyer has not committed to any specific package in advance. They are bidding on whatever impression becomes available, and the decision to bid reflects their assessment of that impression at the moment it is offered.

How does the audit trail differ between the two buying types?

Open exchange buying produces transaction logs: records of which impressions were won, at what price, with what targeting match. These logs are typically held by the DSP and the exchange, in separate systems, with the buyer's view and the seller's view reconciled through third-party verification.

An agent-negotiated deal produces a different kind of record. The deal record captures the negotiation history, the agreed terms, the approval events, and delivery confirmation against those terms. This record is bilateral. Both the buyer and the seller access the same deal record, not separate versions of it. Any dispute about what was agreed is resolved from a single shared source rather than from two separate logs that may not correspond.

What role does the DealSheet play in governing agent-negotiated CTV deals?

Alkimi's DealSheet is the governing layer for direct agent-negotiated deals. It is the record created at the point of commitment that captures what was agreed, who approved it, and what both parties have committed to deliver. For CTV deals, where the complexity of the terms and the value of the commitment are both higher than in open exchange, the DealSheet is not an administrative convenience. It is the instrument that makes the deal governable.

The DealSheet captures the content adjacency terms, the viewability floor commitment, the audience targeting parameters, and the remediation mechanism alongside the price and volume terms. Both parties have access to the same record from the point of commitment. This bilateral access is what makes the DealSheet a genuine governance instrument rather than a single-party record that can be disputed.

Why does the distinction matter for CTV specifically?

CTV is where the governance difference between open exchange and direct deal buying is most consequential. The inventory is premium, the audience commitment is specific, the brand safety stakes are higher, and the volume commitments create meaningful financial obligations. An AI buyer operating in this environment without a robust deal record, clear approval rights, and a bilateral audit trail is not appropriately governed for the category.

The DealSheet addresses this by treating the direct deal as the governed object it is. The deal terms, approval events, and delivery confirmation are all captured in a single bilateral record. The buyer knows what they approved. The seller knows what they committed to. The audit trail is complete from negotiation to delivery. That is the standard that agent-negotiated CTV buying needs to meet, and the DealSheet is the mechanism through which Alkimi makes it concrete.