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Series Raises $5.1M Pre-Seed For IMessage-Based Social Network

Innovative Approach To Social Networking

Series raised $5.1 million in a pre-seed round backed by investors including Iqram Magdon-Ismail, Pear VC, Steve Huffman, and Edward Tian. Founded by Yale students Nathaneo Johnson and Sean Hargrow, the platform operates entirely through iMessage, positioning itself as a different approach to social networking.

Revolutionizing Connection With Conversational Interfaces

Unlike traditional social platforms, Series uses a conversational model rather than a standalone app interface. Users begin by sending a text message to a dedicated number, describing who they are and what type of connection they are looking for. The system then returns a curated set of profiles, typically presented as a group of ten options, allowing users to explore and connect without sharing personal phone numbers. The model combines elements of messaging, discovery, and private interaction within a single flow.

Strategic Timing In A Disruptive Era

The launch comes amid broader shifts toward AI-driven interfaces. Johnson, who studies computer science and economics, points to a transition from traditional app-based navigation to conversational interaction models. This shift mirrors changes seen across the industry, where text-based interfaces are increasingly used to simplify user experiences. At the same time, strong investor interest in AI startups has created favorable conditions for early-stage platforms exploring new formats of interaction.

From Yale Podcast To Start-Up Success

The idea for Series emerged from the founders’ involvement in the Yale Entrepreneurial Society. Through interviews with founders and operators, Johnson and Hargrow observed the importance of warm introductions in building networks. Early traction followed a viral LinkedIn video, which helped attract attention and initial investment. That progression highlights how early distribution and storytelling continue to play a role in startup growth.

Expanding Horizons And Future Growth

Initial adoption has been strongest among students, with users reported across more than 750 campuses. The platform is now expanding toward broader Gen Z and professional audiences. Retention metrics show 82% of users remaining active after 30 days, a level that compares favorably with early benchmarks from platforms such as Facebook. New funding is expected to support hiring, product development, and scaling of the platform’s infrastructure.

Balancing Academics And Entrepreneurial Ambition

Alongside building the company, Johnson continues his academic work at Yale. Maintaining both roles reflects a growing trend among early-stage founders who develop companies while still in university, rather than delaying entry into the market.

A Bold Vision For The Future

Series reflects a broader shift toward conversational interfaces in social networking. As the platform develops, its focus remains on facilitating direct, curated connections rather than broad, open networks. Continued growth will depend on how effectively it scales this model beyond early adopters while maintaining user engagement.

OpenAI Brings Unlimited Text Chats To Free ChatGPT Users

Unlimited Text Conversations Roll Out

OpenAI is removing limits on text-based conversations for all ChatGPT users, following the platform’s recent milestone of surpassing one billion weekly users.

The update introduces GPT-5.6 Luna as the default model for Free and Go users, replacing GPT-5.5.

New “Think” Button For More Complex Questions

Alongside unlimited text chats, Free and Go users will gain access to a new “Think” button, allowing them to use additional reasoning power for more complex queries.

OpenAI noted that separate usage limits will continue to apply to file uploads, image generation, voice features and other multimodal tools.

Faster Responses For Paid Subscribers

The update also brings improvements for ChatGPT Plus and Pro subscribers. They will receive access to GPT-5.6 Sol, an upgraded model designed for everyday tasks such as web research, planning, writing, decision-making and answering questions. According to OpenAI, the model delivers shorter, more robust responses.

The company noted that this version is separate from the GPT-5.6 Sol model used in Codex and Work, which remains unchanged. Plus and Pro subscribers will also receive a new thinking slider, allowing them to adjust how much reasoning the model applies before generating an answer, depending on the complexity of the task.

OpenAI Reports Fewer Errors

According to OpenAI’s internal testing, GPT-5.6 Luna produces 62% fewer factual errors than GPT-5.5 Instant, while GPT-5.6 Sol reduces factual errors by 68%.

The updated GPT-5.6 Sol model is available to Plus and Pro users starting today. The remaining features for Free and Go users will roll out throughout the week, with unlimited text chats and the new Think button becoming available next week.

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