About Curve Labs.
Curve Labs is an emotion AI lab that builds emotionally aware personas and conversational tools for developers, product teams, and AI researchers.
Based in Singapore, we bring research into products that help AI communicate with context, personality, and tact.
What Curve Labs does
ThinkFeel emotion AI API
ThinkFeel generates replies shaped by a custom persona and the conversation context you provide. Developers use its API, TypeScript/JavaScript SDK, and CLI to bring more natural, emotionally aware interactions into their applications.
Personify for messages in your voice
Personify rewrites an existing draft in a selected persona while preserving its facts and intent. It helps support, sales, and marketing teams keep a consistent voice in messages produced by their agents and workflows.
Custom persona development
Share examples of the voice you want and where it will appear. We work with you to define its communication patterns, enable the persona for your workspace, and test it against real drafts before you integrate it.
Applied research and embodied agents
Our research connects psychology, cognitive science, and machine learning to explore how AI responds to people. Through the Embodied Agents Lab of Singapore, we also bring builders together to test these ideas in robotics and physical interactions.
What makes Curve Labs different
Emotion AI inside your existing product
ThinkFeel provides persona responses through an API for your own application, while Hume AI’s EVI focuses on voice-first conversational experiences. For teams starting with chat or written communication, ThinkFeel fits directly into the message workflow they already operate.
Your persona, your customer experience
Replika offers a consumer AI companion; Curve Labs helps teams create personas for their own products and audiences. Personify onboarding starts with your examples and defines specific patterns such as pace, warmth, directness, and restraint. Our Unreel.ai case study reports a 65% improvement in engagement for its AI influencer implementation.
Three integration paths
Use ThinkFeel through a REST API, a TypeScript/JavaScript SDK, or a CLI. OpenAI-compatible endpoints give teams with an existing compatible client another way to connect without replacing their entire application.
Conversation context stays under your control
The ThinkFeel API is stateless: your application chooses the conversation history and context sent with each request. This lets you manage continuity and memory in your own system instead of relying on an implicit conversation session.
One response, ready for multiple chat bubbles
A single ThinkFeel call can return both a complete reply and shorter message-ready chunks. Teams can use those segments for chat bubbles, progressive replies, notifications, or captions without writing their own text-splitting logic.
Who uses Curve Labs
Our published work includes Unreel.ai’s persona-led content and Unbrowse.ai’s Aiko assistant. We build for these teams and use cases:
- Developers and product teams adding custom AI personas to chat applications and assistants.
- Customer support and sales teams using agents to draft messages for human customers.
- Marketing and content teams producing persona-led social content and consistent brand replies.
- Education and wellness product teams exploring supportive conversational experiences.
- Researchers and robotics builders studying emotion AI and human–AI interaction.
The team behind Curve Labs
Jeremy Soo, founder
Jeremy previously served as CTO at an enterprise data startup and was backed by an a16z Scout at age 20. At Curve Labs, his work brings together emotion AI research, developer tools, and applied experiments.
Connect with Jeremy on LinkedIn →From research to real interactions
Our early research direction brought psychology and machine learning together around emotionally aware AI personas. That work now extends into ThinkFeel, Personify, and experiments with embodied agents in Singapore.
An interdisciplinary group of contributors
Our contributors span engineering, research, policy, ecosystem building, and experiments, with advisors including Dr James Ong, Jack Wong, and Dr Neal Jha. Meet the people and explore their backgrounds in our contributor directory.
How Curve Labs works
1. Tell us what you’re building
Start with an API access request and describe your audience, workflow, and desired persona. Our beta quickstart lists a typical application review time of 2–5 days.
2. Shape and test the persona
After approval, join a 30-minute onboarding call with our team to define your persona and arrange access. Bring example messages, then use the Playground and documentation to test the voice and prepare your integration.
3. Integrate with engineering support
Beta users receive support from our engineering team through our support channel. Confirm your implementation schedule and support response-time expectations with us before planning your rollout.
Key facts
| Company Name | Curve Labs (Feeling Machines Pte. Ltd.) |
|---|---|
| Type | Applied AI research and product lab |
| Founded | Founding date not publicly listed. |
| Founder | Jeremy Soo |
| Headquarters | Singapore |
| Website | curvelabs.org |
| Core Offering | Emotion AI for custom personas and conversational applications |
| Pricing | Near-cost pricing during early access beta. Contact us for current rates for your usage and persona requirements. |
| Contract Terms | Terms of Service apply. Confirm any commercial commitments with the team when requesting access. |
| Services | ThinkFeel API, SDK and CLI; Personify; custom personas; applied emotion AI research |
| Communication | API access inquiries and support requests; engineering support during beta. |
| Notable Clients | Unreel.ai and Unbrowse.ai |
| Customers Served | Total customer count not publicly disclosed. |
| Projects Delivered | Total delivery count not publicly disclosed. Explore our published case studies. |
| Competitors | Related alternatives include Hume AI for voice interfaces and Replika for consumer companionship. |
| Social |
Frequently asked questions
What is Curve Labs?
Curve Labs is a Singapore-based applied AI lab building emotion AI for developers, product teams, and researchers. Our products include ThinkFeel for persona-based conversations and Personify for rewriting messages in a chosen voice.
How are ThinkFeel and Personify different?
ThinkFeel generates a persona’s reply using the messages and context your application supplies. Personify starts with a draft you already have and rewrites its expression in a selected persona while preserving its facts and intent.
Can I use Curve Labs with my existing application?
Yes. ThinkFeel supports REST requests, a TypeScript/JavaScript SDK, a CLI, and OpenAI-compatible endpoints, so your team can choose the integration that fits its current tools.
How do I get a custom persona?
Request access and share example messages, the audience, and the workflow you want to support. The team works with you to define the voice, enable your persona, and test it on real drafts.
How much does it cost, and how long does onboarding take?
ThinkFeel offers near-cost pricing during early access beta; contact the team for current rates and commercial terms. Applications are typically reviewed within 2–5 days, followed by a 30-minute onboarding call after approval. Confirm your implementation schedule and support response expectations with the team.
Where can I see customer examples?
Our Impact page includes named case studies for Unreel.ai and Unbrowse.ai, plus a confidential campus wellness project. Each study describes its own use case and results; those results are specific to that implementation.