What Happens When the AI Isn’t Sure? – Confidence Thresholds and Human-in-the-Loop

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Paperless Productivity

Posted on: October 18, 2026

AI fax confidence thresholds are a key component of human-in-the-loop fax automation

Confidence thresholds, required-field checks, deterministic validation rules, and approval settings work together to determine which actions can proceed automatically and which need a person. This approach minimizes manual work while retaining control over uncertain results.

Three Controls Dictate Human Review

These controls answer different questions: how reliable the result appears, whether it meets the workflow’s requirements, and who can authorize the next action. Passing one check does not establish that the others have passed.

System confidence score

Wherever the system exposes a confidence score, the threshold decides whether manual review is warranted. Different vendors calculate confidence scores differently, so it’s worth discussing these nuances with the vendor’s technical staff.

Required fields & EMR patient matching

At minimum, validation makes sure that outputs exist (and are formatted appropriately). Validation can also extend to checking outputs against expected values, flagging duplicates, and verifying links to data in other systems. Validation issues should generally trigger manual review regardless of the confidence score.

Manual vs. automatic completion

Approval settings determine whether an eligible action runs automatically or waits for a person. For example, a workflow can autonomously classify and extract fax content, but wait for approval before an EMR update. 

In other words, automatic updates to records or applications are possible, but not necessary or inevitable.

AI Capabilities & Approval Controls Have Different Jobs

OpenText Fax Aviator describes four core capabilities: Assist provides application guidance, Route directs faxes to a destination, Summarize condenses content, and Extract produces structured data. These capabilities reduce reading and rekeying; the surrounding workflow determines how their outputs are checked and released.

The checkpoint depends on the action. Routing can pause when the destination is unclear, while an extracted identifier can require validation before an EMR update. A summary may remain available to a reviewer without authorizing any downstream action. The presence of an AI capability alone does not establish which approval controls are configured.

What a Flagged Fax Looks Like

Consider a fax with a smudged patient identifier. A review workflow can hold the document and present the extracted values alongside the source. Where field-level flags are supported, the interface can highlight the uncertain value so the reviewer knows where to focus.

Pre-filled fields reduce retyping when they are correct. The reviewer can confirm a value, correct it from the source, or leave it unresolved and request clarification. A poor scan does not always produce a low confidence score, so validation checks and sampling still matter.

The correction resolves the current case and can provide evidence for later tuning. It does not necessarily teach the model to handle the next fax differently. Any learning from reviewer feedback depends on a specific, documented feature and a controlled update process.

Thresholds Improve Through Testing

A conservative pilot can keep human approval on for every completed workflow while the team evaluates confidence scores. For a system using a percentage-style scale, 95% could be a test setting; it is an illustrative starting point, not a universal recommendation or accuracy guarantee.

A golden test set pairs representative faxes with reviewer-approved answers. Testing candidate thresholds against those answers shows how accepted errors and review volume change. A lower threshold may be appropriate for one task and unacceptable for another. Sampling automatically accepted results matters too, because high-confidence errors may never enter the exception queue.

Response Targets Keep Review Moving

A held fax still needs timely handling. Configured response timers and notifications can show how long it has waited, alert the responsible team, and escalate overdue items. An urgent referral can follow a shorter response target than routine correspondence.

Those controls make pending work visible; staff coverage determines the response. Tracking the age and volume of held items shows whether the review process is keeping pace or becoming a bottleneck.

Source Evidence Makes Review Useful

Verifying the current result

A reviewer needs to compare an extracted value with the original fax. Searchable OCR text can help locate a passage, and a page summary can help orient the reviewer. Neither substitutes for checking the source image when a value is unclear or consequential.

Evaluating review enhancements

Click-to-source highlighting can shorten that search, while suggested next actions can help resolve exceptions. Whether these features are available depends on the product and release. Learning from exceptions also requires a defined feedback process. A release-specific demonstration establishes which capabilities are available for the proposed deployment.

Automatic EMR Writes Can Stay Off

A workflow can retain human approval before every EMR update while using AI to prepare the data. This allows teams to benefit from extraction and routing assistance without committing to unattended completion.

That boundary belongs in the implementation scope. The customer and integration partner can define which actions require approval, what happens when validation fails, and how automatic actions are paused. The pilot can then test those controls against missing fields, uncertain matches, and rejected downstream updates.

The Handoff Determines the Value

Useful automation reduces total handling effort while keeping errors within the limits agreed for the workflow. Review rate alone cannot show that. Handling time, correction rates, missed exceptions, and the age of held faxes reveal whether the handoff between AI and staff is working.

For more on connecting fax capture to downstream records, see our Healthcare Fax-to-EHR Integration Guide. For the role of OCR in capture and routing, see RightFax and OCR Integration.

Human review connects AI assistance to the decisions staff make in daily fax processing. Paperless Productivity helps organizations define that handoff within their fax workflows. Contact us to discuss review controls and automation goals with a senior consultant.


FAQ

What is an AI fax confidence threshold?

It is a cutoff used to select results for automatic handling or human review. Other validation and approval rules still apply.

Does high confidence guarantee an accurate result?

No. Compare scores with observed errors on your own documents and sample automatically accepted results.

Does correcting a fax train the AI?

Not automatically. Corrections can guide tuning, but learning requires a supported process and validation.

Can AI process faxes without automatically updating the EMR?

Yes. An appropriately configured workflow can prepare data while requiring human approval before an EMR update.

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