Last updated 08-13-2026
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Signapse AI
Signapse translates videos, live events, signage, and announcements into British Sign Language (BSL) and American Sign Language (ASL) using generative AI reviewed by Deaf translators. Its three products cover post-production video (SignStudio), real-time live translation (SignStream API), and website embedding, serving transport operators, broadcasters, and enterprises that need sign language at scale.
Unlike generic captioning tools that add text overlays, Signapse generates photo-realistic sign language video from a large dataset of qualified signer footage blended by AI. SignStudio handles uploaded videos, documents, and YouTube URLs with brand customisation, while SignStream turns short English phrases into live BSL or ASL video in about 15 seconds for screens, broadcasts, and digital signage.
Transport networks use Signapse for train announcements (over 5,000 BSL announcements generated daily across the UK). Media teams batch-translate hours of content through SignStudio. Developers embed the SignStream API into apps, chatbots, and venue displays for real-time accessibility.
SignStudio translates uploaded videos, documents, and YouTube URLs into BSL or ASL
SignStream API generates live sign language video from text in about 15 seconds
Over 5,000 BSL train announcements generated daily across UK transport networks
Business plan at $390 per month includes 400 AI minutes and 4 seats
Customisable signer size, backgrounds, and export formats up to 4K on Enterprise
Share translated videos directly to YouTube, Instagram, LinkedIn, or X
Covers both post-production (SignStudio) and real-time live translation (SignStream)
BSL and ASL support with Deaf community involvement in quality review
Free Starter tier and free SignStream tool for quick testing
Proven at scale with 5,000+ daily UK transport announcements
Enterprise API for broadcasters, platforms, and government teams
Paid plans require a 12-month minimum commitment
SignStream best suited for short phrases, not long-form grammar editing
Starter free tier exports SD quality with watermark only
Human translation and review available only as paid add-ons
What sign languages does Signapse support?
Signapse supports British Sign Language (BSL) and American Sign Language (ASL). SignStudio offers AI translation with quality check for both, plus optional fully human translation. SignStream handles real-time BSL and ASL from English text.
How much does Signapse SignStudio cost?
Signapse SignStudio Starter is free with watermark and pay-as-you-go minutes at $10 each. The Business plan is $390 per month with 400 AI minutes per year and 4 seats. Enterprise is $780 per month with 1,200 AI minutes and unlimited seats.
What is Signapse SignStream?
Signapse SignStream is a real-time AI translator that turns short English phrases into BSL or ASL video in about 15 seconds. It integrates via API into live events, broadcast overlays, digital signage, and chatbots.
Can Signapse translate YouTube videos?
Signapse SignStudio accepts video uploads, documents, audio files, and YouTube URLs. You select BSL or ASL, customise the signer appearance, and export or share the translated video to social platforms.
Does Signapse use human translators?
Signapse combines generative AI with review by real Deaf translators. SignStudio offers AI with quality check as standard, plus paid add-ons for human review or fully human translation on Business and Enterprise plans.
Who uses Signapse for accessibility?
Signapse serves transport operators generating daily BSL train announcements, broadcasters adding sign language to media, and enterprises embedding live translation into venues and apps. Partners include UK rail networks and accessibility organisations like Transport for All.