[ Realtime AI Development ]

AI That Responds While the Moment Still Matters

We build AI that works on live streams: voice calls, video feeds, market ticks, clickstreams and sensor events. Responses arrive in hundreds of milliseconds, not after the customer has hung up or the transaction has cleared.

Response targets set per use case
Sub-second
Response targets set per use case
Availability on our cloud telephony build
99.99%
Availability on our cloud telephony build
From sign-off to a team starting
48 hrs
From sign-off to a team starting
Demos of working software
Weekly
Demos of working software
Laptop showing a video call beside a plant
Example budget for one voice reply750 ms
  • 60 Transport
  • 160 Speech to text
  • 320 Model
  • 140 Text to speech
  • 70 Network back
[ The realtime path ]

The Realtime AI Path

Every layer has a latency budget. We measure each one so slowdowns can be traced to a single hop.

  1. Hop 1

    Clients and channels

    Where live audio, video and events originate.

    • Web and mobile apps
    • Phone and SIP
    • IoT devices
  2. Hop 2

    Realtime transport

    Moves media and events with minimal delay.

    • WebRTC SFU
    • WebSockets
    • LiveKit
    • SIP trunks
  3. Hop 3

    Stream processing

    Buffers, enriches and routes events to the right model.

    • Kafka
    • Flink
    • Redis Streams
    • Voice activity detection
  4. Hop 4

    Low-latency inference

    Models served for fast first tokens and steady throughput.

    • Realtime model APIs
    • vLLM
    • Streaming STT and TTS
    • GPU autoscaling
  5. Hop 5

    State and observability

    Session context, results and latency tracing.

    • Session store
    • Latency traces
    • Recording storage
    • Alerting
[ Use cases ]

Where Latency Decides the Outcome

Realtime AI is worth the extra engineering when a slow answer is the same as no answer.

  • Person wearing a headset on a call
    01

    Live voice agents and call assist

    Speech-to-speech agents that hold natural conversations, plus agent assist that suggests answers and pulls records while a human is still on the call.

    Callers get answers without awkward pauses

  • Producer watching a live match feed at a desk
    02

    Live transcription and translation

    Streaming captions and two-way translation for calls, meetings, events and broadcasts, with speaker labels and custom vocabulary.

    Conversations across languages in real time

  • Customer paying by card at a tablet till
    03

    Transaction and fraud scoring

    Models that score payments, logins and signups inside the request path, returning a decision before the user sees a spinner.

    Risk checks that do not slow checkout

  • Person holding a phone with a shopping app open
    04

    In-session personalization

    Recommendations and offers that react to what a visitor is doing right now, computed from clickstream events in seconds.

    Relevance based on this session, not last week

  • Market prices on an LED ticker display
    05

    Live market and sensor signals

    Streaming anomaly detection and summaries on market data, IoT telemetry and logs, with alerts routed to the right person.

    Problems caught while they can still be fixed

  • Phone on a tripod streaming live
    06

    Live commerce and streaming moderation

    Realtime chat moderation, product tagging and highlight detection for live shopping streams and community broadcasts.

    Safer streams with less manual moderation

[ Capabilities ]

Engineering for Every Millisecond

Low latency comes from the whole path: transport, models, infrastructure and how results are streamed back.

01

WebRTC and media transport

Browser, mobile and SIP audio and video over WebRTC, with echo cancellation, jitter buffers and network recovery.

07

Edge and regional routing

Media servers and inference placed close to users, with fallback regions when one becomes slow.

[ Client voices ]

Teams Running Live AI With Us

Rated 4.9/5 on average across the platforms clients review us on.

  • Clutch5.0
  • GoodFirms5.0
  • Google5.0
  • Upwork4.9
I had the pleasure of working with Sajal Tech on a travel website, and it was an incredible experience from start to finish. They demonstrated professionalism, clear understanding of requirements, and excellent communication throughout.
DKDaniel KwekaCEO, Darius Digital
Camera on a tripod in a studio

Three to five days

Start With a Latency Budget Workshop

We map every hop between your user and the model, set a target for each, and tell you which parts of the path will decide whether it feels instant.

Book the Workshop
[ Industries ]

Realtime AI by Industry

Where a slow answer is the same as no answer.

  • Agents with headsets at their desks

    Voice agents and agent assist on live calls, with SIP trunks, recording consent and latency tuned per region.

    • Voice agents
    • Live agent assist
    • Call transcription
[ Inside the stream ]

Live AI With Safeguards

Realtime systems act before a human can review, so the checks have to run inside the stream.

  • Safeguard 1

    Inline safety filters

    Streaming moderation and policy checks run on partial outputs, so unsafe content can be stopped mid-sentence.

  • Safeguard 2

    Consent and recording rules

    Call recording notices, consent capture and region-specific retention are built into the session flow.

  • Safeguard 3

    Load-tested before launch

    We replay realistic traffic and network conditions, and only launch when p95 latency and error rates meet the agreed budget.

  • Safeguard 4

    Secure media handling

    Encrypted media in transit and at rest, scoped tokens per session and an ISO 27001 certified team handling your streams.

[ How we deliver ]

How We Ship Realtime AI

We measure latency from the first prototype, because it is very hard to add speed after the architecture is set.

  1. 3 to 5 days

    Latency budget workshop

    Define target response times, traffic peaks and channels, then split the budget across transport, processing and models.

    • Latency budget
    • Architecture plan
    • Fixed quote
  2. 2 to 3 weeks

    Streaming prototype

    A working end-to-end path on real audio or events, with per-hop timing visible from day one.

    • Working prototype
    • Latency report
  3. 3 to 6 weeks

    Scale and harden

    Load testing, autoscaling, failover regions, fallback models and monitoring added before real users connect.

    • Load test results
    • Runbooks
    • Dashboards
  4. Ongoing

    Operate and tune

    Track latency and quality in production, and adopt faster models or regions as they become available.

    • Monthly latency report
    • Cost review
[ Technology stack ]

Realtime Models and Infrastructure

We pick models by measured latency on your traffic, not by benchmark scores alone.

  • OpenAI Realtime API
  • Gemini Live API
  • Qwen Omni
  • Liquid AI
  • Grok
[ Pricing ]

Realtime AI Pricing

Indicative starting prices. Model, speech and media minutes are billed by providers, and we estimate cost per minute or per event up front.

  • Realtime prototype

    One live voice, transcription or streaming use case working end to end.

    From

    $2,500

    2 to 3 weeks

    • Latency budget workshop
    • End-to-end streaming path
    • Per-hop latency report
    • Hosted demo
  • Production realtime feature

    A realtime AI feature in your product, load tested and monitored.

    From

    $15,000

    6 to 10 weeks

    • WebRTC or stream integration
    • Optimized inference
    • Load testing and autoscaling
    • Fallbacks and alerting
    • 30 days of support
  • Realtime AI platform

    High-volume streaming AI across channels, regions and teams.

    From

    $45,000

    3 to 6 months

    • Multi-region media and inference
    • Kafka or Flink pipelines
    • Self-hosted models
    • Ongoing performance tuning
[ FAQ ]

Realtime AI Questions

Still deciding? A 30-minute call usually answers the rest.

Ask Us Directly
  • For voice conversations we usually target a p95 turn latency under one second, which feels natural to most callers. Streaming captions can appear in a few hundred milliseconds, and fraud scoring in the request path often needs well under 100 ms. We set the target with you and measure it from the prototype onward.

  • A working prototype starts from $2,500, a production feature from about $15,000 and a multi-region platform from $45,000. Running costs are mostly per audio minute or per event, and we estimate them before you commit.

  • Speech-to-speech APIs like OpenAI Realtime and Gemini Live give the lowest latency and the most natural turn-taking. A separate pipeline gives more control over each step, custom vocabulary and voice choice. We prototype both when the choice is not obvious.

  • Yes. We build consumers that enrich events, call models and publish results to new topics, with backpressure, retries and dead-letter queues. Your existing producers do not need to change.

  • We set timeouts per hop and fall back to a faster model, a cached answer or a simpler response path. Monitoring alerts us when p95 latency drifts, and traffic can shift to another region or provider.

  • Yes. We connect SIP trunks and providers like Twilio alongside WebRTC for browsers and mobile apps, so the same AI can serve calls, apps and web widgets.

  • Streaming speech models handle most accents well, and we add custom vocabulary for product names and technical terms. We measure word error rate on recordings from your own callers before launch.

  • Yes. Open-weight speech and language models can run on your GPUs with vLLM or Triton, which helps with data residency and cost at high volume. We size hardware from your peak concurrency.

  • You own the code, infrastructure definitions and configuration. We hand over runbooks and load test scripts so your team can operate and scale it.

[ Contact ]

Let's build your next product together

Book a free strategy call and leave with a clear plan and estimate. No commitment.

  1. 01Pick a time that suits you
  2. 0230 minutes on scope, stack, timeline and budget
  3. 03Fixed-price proposal, NDA on request
Prefer email? contact@sajaltech.com