3Chat.ai v5.0 Release Notes: Agent Builder Officially Launches · WeChat Personal Accounts / LINE Integration · Open Capabilities Enhanced
Hello everyone,
3Chat.ai v5.0 is officially released.
This is a very significant version upgrade for 3Chat.ai. This update focuses on four key areas: Agent Builder, Omnichannel Integration, Domestic Payment Experience, and Open API Capabilities. Our goal is clear:
To enable merchants not just to “integrate an AI customer service,” but to rapidly build an AI Agent that truly understands their business, customers, and conversion strategies.
Below are the detailed update notes for this version 
I. Core Release: Agent Builder Officially Launches
1. The First AI Builder That “Creates Top Sales Reps”
In v5.0, 3Chat.ai officially launches Agent Builder.
In the past, for many enterprises wanting to deploy AI customer service, the real difficulty wasn’t the model’s capabilities, but the high cost of initial configuration:
- Uncertainty on how to organize product knowledge
- Uncertainty on how to refine sales scripts
- Uncertainty on how to design conversation flows
- Uncertainty on how to test if the Agent can truly handle customer inquiries
- Uncertainty on how to continuously optimize after launch
Agent Builder solves exactly this problem.
You simply describe your business in natural language, and the Builder will help you build, train, test, and continuously optimize your Agent.
2. From “Configuring AI” to “Training a Top Sales Rep Who Understands Your Business”
Agent Builder no longer requires users to start with a pile of complex configuration options. Instead, it uses conversational guidance to help merchants gradually complete the business initialization of their Agent.
The core process includes:
- Describe · Describe Your Business
Tell the Builder in natural language: What you sell, who you sell to, and how you sell. - Build · Automatic Construction
The Builder automatically generates the business settings, customer personas, knowledge content, sales scripts, and conversation strategies required for the Agent. - Test / Evaluate · Automatic Testing and Evaluation
The Builder simulates real customer scenarios to help you verify the Agent’s response effectiveness across different inquiry situations. - Improve · Continuous Optimization
You can continue to tell the Builder in natural language what you want to adjust, and the Agent will constantly become more aligned with your business.
3. Empowering Every Merchant to Have Their Own AI Top Sales Rep
The goal of Agent Builder is not to teach users complex AI configurations, but to lower the barrier to building Agents.
Whether you are just starting with 3Chat.ai or are a mature team with clear sales SOPs, you can use the Builder to complete Agent initialization faster and continuously optimize its sales capabilities.
This is also the most important product direction for 3Chat.ai v5.0:
To ensure AI Agents don’t just answer questions, but truly understand the business and drive customers toward conversion.
II. Message Channels Continue to Expand: WeChat Personal Accounts / LINE Officially Integrated
3Chat.ai is continuously evolving into an “Omnichannel Intelligent Dialogue Hub.”
In v5.0, we have further expanded our message channel integration capabilities.
1. New Support for WeChat Personal Accounts
This version adds support for WeChat Personal Accounts.
For many domestic merchants, WeChat personal accounts remain one of the most important arenas for customer communication. After integration, merchants can unify customer inquiries from WeChat personal accounts into 3Chat, where the 3Chat Agent participates in reception, replies, and conversion.
Suitable for the following scenarios:
- Private domain customer inquiries
- Pre-sales reception via WeChat personal accounts
- Repurchase inquiries from existing customers
- Unified management of multiple WeChat accounts
- Collaborative reception by humans and AI
For detailed operations, please refer to the article: How to Integrate WeChat Personal Accounts in 3Chat
2. New Support for LINE Channel Integration
The international version of 3Chat.ai now adds support for LINE channel integration.
LINE is a critical customer communication channel in markets such as Japan, Taiwan, and Thailand. After integration, merchants can use 3Chat to uniformly handle customer messages from LINE Official Accounts, allowing the Agent to participate in pre-sales consultations, order issues, campaign guidance, and customer service.
Suitable for the following scenarios:
- Customer service for Japan / Taiwan / Southeast Asian markets
- Automated reception for LINE Official Accounts
- Pre-sales consultations for cross-border e-commerce
- Campaign conversion and customer retention
- Multilingual customer communication
For detailed operations, please refer to the article: Connect a LINE Official Account in 3Chat.ai
III. Enhanced Payment Experience for the Domestic Version
To improve the purchase and renewal experience for domestic users, the payment capabilities of the 3Chat.ai domestic version have been upgraded in v5.0.
This update adds support for:
- Monthly recurring subscriptions
- Quarterly subscriptions
- Annual subscriptions
- UnionPay credit cards from all banks
- Visa credit cards
This means domestic users can choose more flexible billing cycles when purchasing or renewing, and can use a wider range of bank cards for payment.
The payment process is smoother, and the renewal experience is further improved.
IV. Omnichannel Page Upgrade
This version includes a comprehensive upgrade of the Omnichannel Page.
1. Distinguishing Between Domestic and International Channels
Since the supported channels differ between the domestic and international versions, the new Omnichannel Page clearly distinguishes the channels available for each version.
Users can more quickly determine:
- Which channels are supported by the current version
- Which channels are suitable for domestic business
- Which channels are suitable for overseas business
- Where to start configuring the channels they need to integrate
2. Providing Quick Navigation to Registration Guides
For users who have not yet completed the registration or authorization preparation for the corresponding channel accounts, the page now provides clearer navigation guidance.
You can quickly find the channels you need to integrate based on your business scenarios and complete the subsequent configuration.
V. Enhanced Open Capabilities
In addition to upgrades to the product interface, v5.0 has made significant enhancements in openness to help developers more flexibly integrate 3Chat.ai into their own business systems.
1. Handover to Human Support API Now Supports Specifying a Specific Agent
This version has upgraded the Handover to Human Support API.
Developers can now specify a particular human agent to handle the conversation when calling the handover API.
This means enterprises can customize more flexible seat allocation strategies based on their own business rules, such as:
- Assigning agents based on customer tier
- Assigning agents based on region/language
- Assigning agents based on sales team
- Assigning agents based on the customer’s source channel
- Assigning responsible persons based on internal CRM rules
After completing the handover allocation via the API, 3Chat will transfer the current conversation to the specified human agent.
This makes the boundary between 3Chat’s AI and human collaboration more open and better suited for deep integration with enterprise-owned systems.
API usage reference: Assigning a Human Agent
2. Knowledge Base File Upload OpenAPI Launches
v5.0 adds support for the Knowledge Base File Upload OpenAPI.
Developers can use the API to upload files or text content to the 3Chat Knowledge Base, where 3Chat automatically handles subsequent processing, including:
- File reception
- Document parsing
- Chunking
- Vectorization
- Database ingestion
- Quota consumption statistics
- Task progress callbacks
- Active querying of processing results
The main interfaces opened in this phase include:
- File Upload Interface
- Create Knowledge Processing Task Interface
- Query Knowledge Processing Task Interface
Supported knowledge sources include:
- Uploaded files
- Remote file URLs
- Raw text content
Knowledge processing uses an asynchronous task mechanism. After creating a task, the system returns a taskId. Developers can actively retrieve the processing progress via the query interface or receive file processing status changes via Webhook.
This allows enterprises to more conveniently synchronize their business documents, product materials, FAQs, help center content, or knowledge from external systems into 3Chat, further enhancing the Agent’s business understanding capabilities.
API usage reference:
VI. Bug Fixes and Experience Optimizations
This version also fixes and optimizes a series of issues reported by users.
1. Optimized Auto-Reply Recognition Logic in Channel Configuration
Fixed an issue where auto-replies in certain channel configurations might be misidentified as messages sent proactively by the merchant, leading to incorrect session takeover.
After optimization, the system more accurately distinguishes between channel auto-replies and proactive human messages, preventing erroneous session takeovers.
2. Optimized Efficiency of Fixed Script Responses
Optimized the hit rate and output efficiency of fixed scripts.
When a contact’s message matches a fixed script, the system now outputs the corresponding reply faster, reducing wait times and improving the response experience for high-frequency standard questions.
3. Fixed Issue with Simultaneous Matches of Fixed Scripts and Handover Conditions
Fixed an issue where the handover to human support failed to trigger when a contact’s message simultaneously matched both a fixed script and a handover condition.
After optimization, in scenarios meeting the handover conditions, the system correctly executes the handover logic, ensuring the AI and human collaboration workflow meets expectations.
Issue Background: Users configured auto-replies on the channel platform. When these messages were sent to 3Chat, they became indistinguishable from messages sent by humans within the channel platform app; both were received as “From Mobile” type messages, making it impossible for 3Chat to differentiate between auto-replies and human-sent messages.
Resolution: After receiving a “From Mobile” message M1, the 3Chat Agent enters a silent window period (the configuration for this window duration will be available in a future version). If the following conditions are met within this window, it is判定 (judged) as a handover:
- A second “From Mobile” message M2 is received, and the interval between M2 and M1 is greater than 1 second.
- The contact sends a message first, followed by receiving a “From Mobile” message M2, indicating a round of conversation has been completed.
Window Period Settings: 3Chat Agent → Basic Settings → Chat Session Category
4. Optimized Login-Related Experience
This version also optimized several login-related experience issues, making the account login, space entry, and subsequent usage flows smoother.
Closing Remarks
3Chat.ai v5.0 is a significant version upgrade focused on “lowering the barrier to building Agents” and “more open connection with business systems.”
We will continue to iterate around “stronger AI capabilities + broader channel coverage + lower usage barriers.”
If you have any questions or suggestions during the upgrade process, please feel free to post them in the community for discussion 
—
The 3Chat.ai Team