Taranjeet Singh (pictured above, proper) has launched six corporations, with some failing and others seeing various levels of success. His seventh, Mem0, could possibly be his defining one.
The startup begins with the premise that giant language fashions can’t bear in mind previous interactions the way in which people do. If two individuals are chatting and the connection drops, they’ll resume the dialog. AI fashions, against this, overlook every thing and begin from scratch.
Mem0 fixes that. Singh calls it a “reminiscence passport,” the place your AI reminiscence travels with you throughout apps and brokers, identical to electronic mail or logins do right now. The YC-backed startup, launched in January 2024, has raised $24 million ($3.9 million in beforehand unannounced seed funding and a $20 million Collection A).
AI-focused early-stage fund Foundation Set Ventures led the Collection A, with participation from present traders Kindred Ventures and Y Combinator, in addition to new backers together with Peak XV Companions and the GitHub Fund.
Notable angels embrace Dharmesh Shah (HubSpot), Scott Belsky (ex-CPO Adobe), Olivier Pomel (Datadog), Thomas Dohmke (ex-CEO GitHub), Paul Copplestone (Supabase), James Hawkins (PostHog), Lukas Biewald (Weights & Biases), Brian Balfour (Reforge), Philip Rathle (Neo4j), and Jennifer Taylor (former president, Plaid).
Having a number of leaders who helped form the trendy software program ecosystem guess on Mem0 (pronounced “mem zero”) underscores its promise, and the traction from the four-person workforce backs it up.
To date, the open supply API, which claims to be essentially the most broadly adopted reminiscence framework for AI builders, has surpassed 41,000 GitHub stars and recorded over 13 million Python bundle downloads. In Q1 2025, Mem0 processed 35 million API calls. By Q3, that quantity jumped to 186 million, rising roughly 30% month over month.
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Past open supply adoption, greater than 80,000 builders have signed up for its cloud service. Mem0’s cloud API now handles extra reminiscence operations than another supplier and serves because the unique reminiscence supplier for AWS’s new Agent SDK.
In early 2023, Singh was nonetheless in Bangalore, India. He began his profession as a software program engineer at Paytm, one in all India’s most dear startups, earlier than changing into Khatabook’s first development engineer. He stop in late 2022, simply because the ChatGPT wave was about to crest, and constructed one of many first GPT app shops, which scaled to over one million customers.
That have led him to create Embedchain, an open supply undertaking that lets builders index, retrieve, and sync unstructured information. Because the undertaking took off, incomes greater than 8,000 GitHub stars, Singh despatched over 200 chilly emails to founders, traders, and engineers in Silicon Valley.
“I reached out to virtually each well-known tech entrepreneur that you just might need heard of and was fairly persistent. A few of them responded, and after listening to us out, scheduled us to fly from Bangalore to San Francisco inside 36 hours,” Singh stated.
As soon as within the U.S., Singh reconnected along with his longtime buddy and now co-founder and CTO, Deshraj Yadav, who had led the AI Platform at Tesla Autopilot. Collectively, that they had beforehand constructed EvalAI, an open supply Kaggle various that grew to 1.6K GitHub stars.
Whereas experimenting with Embedchain, the duo launched a meditation app impressed by Indian yogi Sadhguru. The app went viral in India, however Singh says customers stored sharing the identical suggestions: “Hey, I’m on this meditative journey, however the app doesn’t keep in mind that.” So that they pivoted from Embedchain to Mem0 to unravel that downside.
The concept of reminiscence for AI isn’t new, but it surely’s shortly changing into a crucial battleground. OpenAI, for example, started testing long-term reminiscence options in ChatGPT in early 2024, and its CEO, Sam Altman, has hinted that persistent reminiscence can be central to OpenAI’s upcoming {hardware} gadget. Different AI labs are additionally launching experimental reminiscence methods for his or her brokers.
Singh argues that whereas massive AI labs are constructing reminiscence methods, they’ve little incentive to make them moveable or interoperable. “Reminiscence is changing into one in all their key moats now that LLMs are getting commoditized,” he stated.
He explains that whereas customers can get pleasure from persistent, customized experiences in ChatGPT, builders who need to construct purposes — say, a finance companion that remembers a consumer’s buying and selling historical past — want an open, impartial resolution like Mem0.
“We would like builders to supply day-one personalization by means of a shared reminiscence community,” Singh stated. “Consider it as Plaid for reminiscence. That’s act two. For now, we’re laser-focused on constructing the perfect reminiscence product attainable.”
Mem0’s framework lets builders retailer, retrieve, and evolve consumer reminiscence throughout fashions, purposes, and platforms. It’s model-agnostic, suitable with OpenAI, Anthropic, or any open supply LLM, and integrates straight with frameworks like LangChain and LlamaIndex.
Builders use Mem0 to create purposes that develop smarter with each interplay: remedy bots that recall previous conversations, productiveness brokers that bear in mind private habits, and AI companions that adapt over time. Prospects vary from indie builders to enterprise groups constructing copilots and automation instruments.
“We backed Mem0 from its earliest days — even earlier than YC — as a result of reminiscence is foundational to the way forward for AI,” stated Lan Xuezhao, founder and accomplice at Foundation Set Ventures. “We’re doubling down because the workforce continues to sort out one of many hardest and most necessary infrastructure challenges: enabling AI methods to construct lasting, contextual reminiscence.”
Different early-stage startups within the reminiscence area embrace Supermemory (whose founder briefly labored at Mem0), Felicis-backed Letta, and Recollections.ai.
