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Plural charges for Avatar usage through an internal currency called GOs. Instead of a flat monthly fee for features you may never use, you pay only for the interactions your Avatars actually have. The more conversations your Avatar holds and the more advanced features it uses — speech recognition, text-to-speech, AI responses — the more GOs are consumed. This page explains everything you need to know about GOs, from what they are to how to get more.

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What Is a GO?

A GO is the unit of consumption on the Plural platform. Think of GOs as fuel for your Avatars: every time your Avatar does something meaningful — speaks a sentence, listens for a reply, sends an SMS, makes a phone call, or queries the Knowledge Base — it burns a small number of GOs from your account’s shared pool. GOs exist because Plural relies on several paid third-party services to deliver these capabilities:

Google TTS

Converts your Avatar’s written script into spoken audio every time it talks to someone.

Google STT

Converts what a visitor says into text so the Avatar can understand and respond.

OpenAI API

Powers the Knowledge Base, generating intelligent, contextual answers to visitor questions.

Twilio

Sends SMS messages and connects outbound phone calls triggered by your flow.
Each of these services charges Humanizing Technologies per request, and GOs are how those costs are transparently passed through to you based on actual usage.

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GO Consumption Table

FeatureCostCalculation Unit
Element trigger1 GOPer workflow element triggered
Text-To-Speech (TTS)10 GOsPer 1–160 characters spoken
Speech-To-Text (STT)10 GOsPer 1–10 seconds of listening
Knowledge Base Standard10 GOsPer 1–1,000 characters generated*
Knowledge Base Premium100 GOsPer 1–1,000 characters generated*
SMS75 GOsPer SMS sent (1–160 characters)**
Phone call200 GOsPer 30 seconds connected**
* Knowledge Base models and pricing may be subject to change. ** SMS and phone call rates may vary depending on the destination country.

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Feature Details

Every individual element that fires in your flow costs 1 GO, regardless of its type, whether it has triggered before, or whether the same Avatar is running on multiple devices simultaneously.Formula: number of elements triggered × 1 GO
Google converts your Avatar’s written text into audio. The meter runs on character count, rounded up to the nearest 160-character block.Formula: ⌈characters spoken ÷ 160⌉ × 10 GOs
  • 41 characters (“Hi, my name is Peter. How can I help you?”) → 10 GOs
  • 183 characters (“Hello, nice to meet you, my name is Peter…”) → 20 GOs
Tip: Keep your Avatar’s speeches short and punchy to minimise TTS consumption.
Google transcribes everything the Avatar’s microphone picks up — speech, background noise, even a barking dog. The meter runs from the moment listening starts until it stops, rounded up to 10-second blocks.Formula: ⌈listening duration ÷ 10 s⌉ × 10 GOs
  • 3 seconds → 10 GOs
  • 29 seconds → 30 GOs
Tip: You can disable STT entirely in your project settings to eliminate this cost.
OpenAI generates a response based on the visitor’s question and the content you’ve uploaded. Cost depends on which model you use.Standard (GPT-3.5): ⌈answer length ÷ 1,000 chars⌉ × 10 GOsPremium (GPT-4o): ⌈answer length ÷ 1,000 chars⌉ × 100 GOs
  • A 239-character answer → 10 GOs (Standard) or 100 GOs (Premium)
Note: If the Avatar reads the KB answer aloud, TTS charges also apply to the spoken character count.
Twilio sends an SMS from your Avatar. Each message up to 160 characters costs 75 GOs. Longer messages are split and charged per 160-character segment.Formula: ⌈characters sent ÷ 160⌉ × 150 GOs(Note: the source table shows 75 GOs per SMS unit; the per-segment formula reflects 150 GOs per additional segment.)
Twilio connects an outbound call from your Avatar. The meter starts when the recipient picks up and charges per 30-second block.Formula: ⌈call duration ÷ 30 s⌉ × 200 GOs
  • 5-second call → 200 GOs
  • 55-second call → 400 GOs
Note: Calls are automatically cut off at 60 seconds maximum.

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Plan Examples

The table below shows what 50k, 150k, and 250k GOs translate to in real-world usage, assuming balanced consumption across features. If you concentrate usage on one feature (e.g., no STT), you can consume proportionally more of the others.
PlanGOsSTTTTSKB StandardKB PremiumSMSPhone
Starter50,00020 hrs/mo330k chars/mo66k chars/mo264k chars/mo~7 msgs/mo~7 min/mo
Essential150,00060 hrs/mo990k chars/mo198k chars/mo792k chars/mo~20 msgs/mo~20 min/mo
Professional250,00099 hrs/mo1.65M chars/mo330k chars/mo1.32M chars/mo~33 msgs/mo~33 min/mo

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What Is an Interaction (Session)?

An interaction — also called a session — is a continuous conversation between an Avatar and a visitor. GO consumption accumulates across all the elements, TTS, STT, and other features triggered during a single session.
  • With Face Detection enabled: A session begins the moment the Avatar’s camera detects a person’s face, and ends 10 seconds after the face is no longer visible.
  • With Face Detection disabled: The visitor manually starts the session by clicking the Play button. The session ends when the browser tab is closed or after 2 minutes of inactivity (no button clicks).
All Avatars in your account share a single GO pool. Whether you have one Avatar or twenty, they all draw from the same balance.

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Preview Mode vs. Live Mode

Use Preview mode whenever you are testing your flow — no GOs are consumed.
FeaturePreview ModeLive Mode
GO consumption❌ None✅ Full
Avatar overlay/watermark✅ Shown❌ Hidden
Auto-redirect to humanizing.com✅ After 2 min❌ No
STT (speech recognition)❌ Off✅ On
SMS❌ Not sent (“SMS not sent” output triggers)✅ Sent
Phone calls❌ Disabled✅ Enabled
Knowledge Base✅ On✅ On
Live mode generates a shareable link with full functionality and full GO consumption.

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What Happens When GOs Run Out

When your GO pool reaches zero, all Avatars in your account are affected simultaneously — not just the one that exhausted the balance.
When GOs are depleted:
  1. The Avatar automatically reloads (page refresh).
  2. It restarts in Preview mode — STT, SMS, and phone calls are disabled; the Knowledge Base stays on.
  3. A visual overlay appears on the Avatar.
  4. After 1 minute in this state, the Avatar automatically redirects visitors to www.humanizing.com.

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Check Your GO Balance

Your current GO balance is always visible in the left sidebar of your Plural account. It shows your total GO contingent and how many GOs have been consumed so far in the current period.

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Track Your GO Usage

The My GO Usage section gives you a full breakdown of every GO spent:
  • Summary view — total GOs consumed per Avatar or project, with cost drivers highlighted.
  • Activity view — details on elements triggered, characters spoken, listening time, and more.
  • More Details — a per-interaction log showing exactly what happened in each session and what it cost.
Use this data to identify which flows or features consume the most GOs and optimise accordingly.

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Get More GOs

Contact the Humanizing Technologies team for a tailored quote: contact@humanizing.com Describe your expected interaction volume and use case, and the team will recommend the right GO package for your needs.