After we shared that Line 21 is making the platform free for human captioners using human-in, human-out workflows, we heard from people across the live captioning and accessibility community.

Some responses were encouraging. Some were curious. And some were cautious — who wouldn't be?

When a technology platform says it is offering something for free, especially in an industry already dealing with AI, pricing pressure, and shifting client expectations, questions are natural. So here are some of those questions answered directly.

Why are you supporting human captioners?

Because human captioners are essential to access. This isn't changing. Here are some considerations when engaging a CART professional: skill, judgement, preparation, and active damage control.

Live captioners support participation and will be found at the heart of any regulation surrounding the rights of attendees who need live captions. Granted, captioners have war stories involving rain of router failure, or falling sideways on a barge whilst captioning a high stakes conference, but that only speaks to a robust support network that is ready for those very human moments.

For attendees, live captions can be the difference between being present in a room and being able to fully take part in it. Human captioners become part of that access relationship. They help make sure a person can follow the discussion, ask questions, respond in the moment, and be included with the same sense of timing and context as everyone else.

That responsibility is not small. AI tools make that responsibility even clearer, and must be deployed effectively by knowledgeable hands. Ever seen an AV team debate "but do we include the expletives?" in tones of mild panic (yes, if verbatim is truly verbatim, everyone is allowed to read what everyone heard even when it rhymes with 'bikey duck'). If you have a different preference, insert your own ducks here.

We do not believe the future of accessibility should be built by treating human professionals as a temporary step on the way to automation. AI has a place in some workflows. Human captioning has a place too. Those things need to be clear, separate, and chosen with intent.

Supporting human captioners is not a sentimental position. It is practical, and it reflects what real access often requires.

What are the limits on this?

For the human-in, human-out captioning flow, there are no usage limits from Line 21. We have been asked with the cunning air of an examination author "aha, but if I have two students and a conference to cover, and that works out at 79 hours in a 4-day week whilst flying across Europe, how many actual captions will Line 21 let me have?". The answer is all, unless you find yourself asked to turn on translations mid-flow (then that translation is paid).

If a human captioner is creating the text and using Line 21 to send that text to supported outputs, we are making that delivery free and unlimited.

That includes caption delivery to browser, overlay, and supported API token destinations such as Zoom, Microsoft Teams, and YouTube.

Those services are available in Line 21 for people who need them, and they remain separate paid services.

No hidden AI, no training, and no requirement to use other services. You remain in control. No upfront costs.

Is this a hook?

We understand why people ask this — this is unquestionably an industry with a conscience. We have yet to meet a captioner who was not passionate and fierce in advocacy for access, and inspirational for that reason. Line 21 benefits from additional usage, but the outcome for CART providers remains the same — their costs, however small, have been reduced further in their professional execution. Quality is not sacrificed in the exchange, and control remains in your hands.

Some captioners may choose to use paid services such as machine translation or streaming. Some will not. Either outcome is fine.

The free human captioning flow is not dependent on buying something else.

Do you really take feature requests?

Yes, really. We've been open about this from day one — you know best what causes friction in your workflows, or the moment you really wish you had an SOS button without having to switch to WhatsApp or email mid-flow.

We are already looking at co-branding as one example of a feature request that makes sense for human providers. Live captioning providers are not anonymous operators, and we support your identity in live captions delivery in events.

How does this fit with Line 21's own captioning services?

This question has come up in a few different ways, from both sides of the fence recently (from captioners, and captioning providers). We keep pricing transparent. We have been privy to some interesting third-party adjectives surrounding this decision.

When a client pays for human captioning through Line 21, the human cost is the cost of the captioner. Our human live captioners are part of the global community, so we say "from" because there is a strong variance between a US steno team and a team of Japanese live captioners on the same event. Some countries have regional regulations on what a CART provider can charge.

Our support and coordination are priced separately. The value of a human captioner is visible, and our structure is clear for a professional access service. We think that is a more respectful way to price human work.

And our intelligent platform rates are exceptionally clear, for all the additional client needs that can arise.

Are you trying to compete with other human providers?

No. We are optimistically friend-shaped to our counterparts. We want the platform to support the way they already work. Some providers may use Line 21 as their delivery layer to caption live events. Some may use it as a backup. Some may use it for certain clients or certain output types. Some may never need anything beyond the free human live captioning flow.

That is fine — we respect other providers have their own relationships, price models and reputations.

The more useful Line 21 becomes to human captioners, the better the platform becomes for everyone. That is enough of a reason for us.

What we hope happens next

We hope human captioners try it. Use it for a real job. Use it as a backup. Test it with a colleague. Try it for browser captions, overlays, or supported platform delivery with live captions into YouTube. Don't try to order takeout on it; it will end in disappointment.

Human captioners are already doing skilled, demanding, valuable work. Line 21 can make part of the delivery layer easier and less expensive, so that is what we are offering.

And this article writer is particularly looking forward to any additional questions that may arise in the world of live captioning — pop us an email via hello@line-21.com.

For the full announcement, see Keeping Human Captioners in Control.