Agent Memory — Timeline
30 milestones, source-traced.
Sep 24, 2024
Funding: Letta raised a $10 million Seed round led by Felicis Ventures with participation from…
Letta raised a $10 million Seed round led by Felicis Ventures with participation from Sunflower Capital, Essence VC, and angels including Jeff Dean, Clem Delangue, and Cristóbal Valenzuela at a $70 million post-money valuation.
funding-research →Sep 24, 2024
Product Launch: Letta launched its Agent Developer Environment and API platform for free, and began beta…
Letta launched its Agent Developer Environment and API platform for free, and began beta onboarding for its hosted product Letta Cloud.
funding-research →Oct 1, 2025
Funding: Mem0 raised a combined $24 million across Seed ($3.9M led by Kindred Ventures) and…
Mem0 raised a combined $24 million across Seed ($3.9M led by Kindred Ventures) and Series A ($20M led by Basis Set Ventures, with Peak XV Partners, GitHub Fund, Y Combinator, Dharmesh Shah, and Scott Belsky participating).
funding-research →Oct 28, 2025
News Mention: AI Memory Breakthrough: Mem0 Secures $24M to Revolutionize AI Apps - CryptoRank <a href="https://news.google.com/rss/articles/CBMiakFVX3lxTFBwWm9ObXg5TmdwZFVCMFB6NXZVMkRNc3UyT3RqQ2NUY29ua05fR1Mtd1NqUzMxcG9DZGlTT0NfUTFjOXp0LWh1XzNPdXl4a3p0eUtOYWNScVZfOUxrcnpWYWZHNHpBcXdXdUE?oc=5"…
AI Memory Breakthrough: Mem0 Secures $24M to Revolutionize AI Apps - CryptoRank <a href="https://news.google.com/rss/articles/CBMiakFVX3lxTFBwWm9ObXg5TmdwZFVCMFB6NXZVMkRNc3UyT3RqQ2NUY29ua05fR1Mtd1NqUzMxcG9DZGlTT0NfUTFjOXp0LWh1XzNPdXl4a3p0eUtOYWNScVZfOUxrcnpWYWZHNHpBcXdXdUE?oc=5" target="_blank">AI Memory Breakthrough: Mem0 Secures $24M to Revolutionize AI Apps</a> <font color="#6f6f6f">CryptoRank</font>
gnews-mem0 →Oct 28, 2025
News Mention: Mem0 Raises $24M Series A to Build Memory Layer for AI Agents - PR…
Mem0 Raises $24M Series A to Build Memory Layer for AI Agents - PR Newswire <a href="https://news.google.com/rss/articles/CBMitwFBVV95cUxNUjctM3RySWJyNTcxUGN4RERZSWtBWVZHOVNsWVBBVDRMUkRHbEk2VGxaRFRPRkdmRk5TMTVONGxQUlJsemxxX2M1THRLTXozanBXaERpS1JLUUc4Sl9xa1ZsRUlMRlNEZ1VnZmlBcXI4VEpQS1RGcHZnNml4UFVPMmNSbjBiUGZkcWc0b3FzY0VMX01IQlpJVGEzNnh3d1otX2RFTHR2dEk0UlhtODBrMmlLaVEwa28?oc=5" target="_blank">Mem0 Raises $24M Series A to Build Memory Layer for AI Agents</a> <font color="#6f6f6f">PR Newswire</font>
gnews-mem0 →Oct 28, 2025
News Mention: Mem0 raises $24M from YC, Peak XV and Basis Set to build the memory…
Mem0 raises $24M from YC, Peak XV and Basis Set to build the memory layer for AI apps - TechCrunch <a href="https://news.google.com/rss/articles/CBMiugFBVV95cUxOUXM5YnBjWkRXNFRHeGdFVkowOTc4Y21GS2NtcTQxS2tObVg5N1hDNXJCNjVSM05jSnB5N1M2ZmxCZG5pTzdMY0J2eXpRY1pFSUVvTjdGdTY2WGlFdV9lVVgtY1dTWDlubFFGdVYtN01pU0NlM01NUmM0aE1rSjBWQUJFS0VmNEF6TGJZWVBUX0NleUExbk9Pbkh1eks3Q2Q0QTIxMFVJUmx3RmVqQTdTek9saTJua0JuQ2c?oc=5" target="_blank">Mem0 raises $24M from YC, Peak XV and Basis Set to build the memory layer for AI apps</a> <font color="#6f6f6f">TechCrunch</font>
gnews-mem0 →Oct 29, 2025
News Mention: Mem0: $24 Million Raised For Powering Memory Layer For AI Agents - Pulse 2.0…
Mem0: $24 Million Raised For Powering Memory Layer For AI Agents - Pulse 2.0 <a href="https://news.google.com/rss/articles/CBMiigFBVV95cUxOLTZJZjZUUjJsV1pZT2p6U3RyV21VM1RCQUFTdW9UOURaQ2hSUUxCdnBUaThtWWZRNW4zV1JvdHlxU3duYzI0bFozWTA0elVsWTVoSEhCVDFwRlc2WmZUV0NMT2tqVkxkUE5KcGtxYld2RGtmRjNiQWhLSXJsYjktMm5ndjhldjM5eXfSAY8BQVVfeXFMT0JjVFlpck1UelM1ZjBMa1VYaHdJTDRLMVR6OG9Cc1Zjd0FSeU53eEEzMzJSX2g3UEpHdl9OQkJsaXIwaU9vemJ0N05kVzZmSjBaTFBoa2h6eVhhakJtTmxjalduWUNJLS1vUjZKb2d6R0o4dlBTQThLaDMxWVBCUXE2WDVkY1EyM2w0RmNGeXc?oc=5" target="_blank">Mem0: $24 Million Raised For Powering Memory Layer For AI Agents</a> <font color="#6f6f6f">Pulse 2.0</font>
gnews-mem0 →Oct 29, 2025
News Mention: Mem0 Secures $24 Million in Funding - The SaaS News <a href="https://news.google.com/rss/articles/CBMid0FVX3lxTE1DUzJmUzhIQTRod0RGWDF3cXdSaGdldDJiM0s0TzVTeVFKVzEyRDA2cnpWVFEyYlNSUlBxejNucFczR1JhR2FMTnpDNEE0WV9BZ3JRbDRJTzBhLTZnZk5VN2o2MWJUYTVsUkV4MjA0dk92SmdPUjE4?oc=5" target="_blank">Mem0 Secures…
Mem0 Secures $24 Million in Funding - The SaaS News <a href="https://news.google.com/rss/articles/CBMid0FVX3lxTE1DUzJmUzhIQTRod0RGWDF3cXdSaGdldDJiM0s0TzVTeVFKVzEyRDA2cnpWVFEyYlNSUlBxejNucFczR1JhR2FMTnpDNEE0WV9BZ3JRbDRJTzBhLTZnZk5VN2o2MWJUYTVsUkV4MjA0dk92SmdPUjE4?oc=5" target="_blank">Mem0 Secures $24 Million in Funding</a> <font color="#6f6f6f">The SaaS News</font>
gnews-mem0 →Oct 29, 2025
News Mention: Mem0 raises $24M to power long-term memory for AI - YourStory.com <a href="https://news.google.com/rss/articles/CBMiowFBVV95cUxQbnd6Ui0wbFA4bTZETXUta1g3SUd3WjZwRzhwamxkTlo3bng4bzZMMDFPMkg3VHdYVTY3SG9Mcml0UlE3VnJRZGtMcjJyQ1Nab1M1d2RkQjBtcE81Umxoc0swczBDR3l6N0lJYTB4a3VDYXd0WGpqWVJkT2I2ZFd5TG5HU3NXY2xxOWpKV3ZWUElkclhDZW96QklSRHVPcXBBRmFv?oc=5" target="_blank">Mem0…
Mem0 raises $24M to power long-term memory for AI - YourStory.com <a href="https://news.google.com/rss/articles/CBMiowFBVV95cUxQbnd6Ui0wbFA4bTZETXUta1g3SUd3WjZwRzhwamxkTlo3bng4bzZMMDFPMkg3VHdYVTY3SG9Mcml0UlE3VnJRZGtMcjJyQ1Nab1M1d2RkQjBtcE81Umxoc0swczBDR3l6N0lJYTB4a3VDYXd0WGpqWVJkT2I2ZFd5TG5HU3NXY2xxOWpKV3ZWUElkclhDZW96QklSRHVPcXBBRmFv?oc=5" target="_blank">Mem0 raises $24M to power long-term memory for AI</a> <font color="#6f6f6f">YourStory.com</font>
gnews-mem0 →Oct 29, 2025
News Mention: Mem0 raises $24 mn to build memory layer for AI agents - The Economic…
Mem0 raises $24 mn to build memory layer for AI agents - The Economic Times B2B <a href="https://news.google.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
gnews-mem0 →Oct 29, 2025
News Mention: Mem0 raises $24 million Series A to build memory layer for AI agents -…
Mem0 raises $24 million Series A to build memory layer for AI agents - Business Standard <a href="https://news.google.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
gnews-mem0 →Oct 29, 2025
News Mention: Mem0 raises $24 Mn in Series A round - Entrackr <a href="https://news.google.com/rss/articles/CBMif0FVX3lxTE1WQ0stM1ktNTY0TWQ4cVljbWdFc1V1YmhQeElSeXpkcS16ZUhZYlQ3LWtNaXV0VjViTDBfSVlrVWJ4V1UwalRBdkNHNmh6N2haaC12TjVGb3U4LUY3TWlfelZLRnBPdFBmenp3czhWX2Joenh6bWtpeHpYVTBwejDSAX9BVV95cUxNVkNLLTNZLTU2NE1kOHFZY21nRXNVdWJoUHhJUnl6ZHEtemVIWWJUNy1rTWl1dFY1YkwwX0lZa1VieFdVMGpUQXZDRzZoejdoWmgtdk41Rm91OC1GN01pX3pWS0ZwT3RQZnp6d3M4Vl9iaHp4em1raXh6WFUwcHow?oc=5" target="_blank">Mem0 raises…
Mem0 raises $24 Mn in Series A round - Entrackr <a href="https://news.google.com/rss/articles/CBMif0FVX3lxTE1WQ0stM1ktNTY0TWQ4cVljbWdFc1V1YmhQeElSeXpkcS16ZUhZYlQ3LWtNaXV0VjViTDBfSVlrVWJ4V1UwalRBdkNHNmh6N2haaC12TjVGb3U4LUY3TWlfelZLRnBPdFBmenp3czhWX2Joenh6bWtpeHpYVTBwejDSAX9BVV95cUxNVkNLLTNZLTU2NE1kOHFZY21nRXNVdWJoUHhJUnl6ZHEtemVIWWJUNy1rTWl1dFY1YkwwX0lZa1VieFdVMGpUQXZDRzZoejdoWmgtdk41Rm91OC1GN01pX3pWS0ZwT3RQZnp6d3M4Vl9iaHp4em1raXh6WFUwcHow?oc=5" target="_blank">Mem0 raises $24 Mn in Series A round</a> <font color="#6f6f6f">Entrackr</font>
gnews-mem0 →Oct 29, 2025
News Mention: Mem0 Raises $24 Mn From Basis Set Ventures, Peak XV Partners, Others - BW…
Mem0 Raises $24 Mn From Basis Set Ventures, Peak XV Partners, Others - BW Disrupt <a href="https://news.google.com/rss/articles/CBMiqgFBVV95cUxNOUFNX1pGSC1UUGIzWXZUaXBSNy1BME54cElBNVVCQ1VFNlJGRWtkZ0VZalhUOEt2eUc4U3RLdm1rS05JMEQ2NnF0Wm81ZVNXOTVEYU5jUWs5NkhGNXhRTXpabC05d1V6QTRiTmp3UjNrLTRELXMySTBydDJLcXlpZ1VRRjV6N3lFbi1pUGR5T0o4dzRUWVU1NDRTZ0ZHSmJpQV9Eb0U2dTNoZw?oc=5" target="_blank">Mem0 Raises $24 Mn From Basis Set Ventures, Peak XV Partners, Others</a> <font color="#6f6f6f">BW Disrupt</font>
gnews-mem0 →Nov 10, 2025
News Mention: Comparing Memory Systems for LLM Agents: Vector, Graph, and Event Logs - MarkTechPost <a…
Comparing Memory Systems for LLM Agents: Vector, Graph, and Event Logs - MarkTechPost <a href="https://news.google.com/rss/articles/CBMirAFBVV95cUxQcGgtUU9qaHRLUGdnZFlLeDFMX1hXNzlXSm9kU3R3U25ZMlMyZjcza1NJeWhuNFpVSWg3ZTd2WXdISzFsX3VJcThwNmNmaU9FUVJSODhRNWJKV3ZWVklGbWlkbWNUTlplUjl0Wkp5UU54amN4V2xHWFRreS1FZXY5MGhacmNYUF9DWUZFZ25pUFdlUlRZRjRaVXg1MFlXZUlUYXJMcFpuZ2tldmFv?oc=5" target="_blank">Comparing Memory Systems for LLM Agents: Vector, Graph, and Event Logs</a> <font color="#6f6f6f">MarkTechPost</font>
gnews-zep →Jan 1, 2026
Letta (formerly MemGPT) raised a ~$10M seed at a ~$70M post-money valuation to build…
Letta (formerly MemGPT) raised a ~$10M seed at a ~$70M post-money valuation to build OS-style tiered memory for agents.
Knowledge base →Feb 1, 2026
Mem0 raised ~$24M to build a persistent memory layer for AI agents.
Knowledge base →Feb 2, 2026
News Mention: Meet Lenny’s Memory: Building context graphs for AI agents - Neo4j <a href="https://news.google.com/rss/articles/CBMilAFBVV95cUxQZmdBb1lLWGROMUdKVDlmLTVKRnlwNnR1clRrazU1a2hCMkhhVWtYX1BMelZkdG1WY3M5ZXpldGZObkN6R09KWWZPZTMxY2RielBmb01tbWUtZUdEN3A2cmJIQ0Q1eEhxZjFYbFI5WkZZSWNrVFhZTEx6ZlhJVUo0bk0xUndlVWhjUk1DOEhtOHpKTVVz?oc=5" target="_blank">Meet…
Meet Lenny’s Memory: Building context graphs for AI agents - Neo4j <a href="https://news.google.com/rss/articles/CBMilAFBVV95cUxQZmdBb1lLWGROMUdKVDlmLTVKRnlwNnR1clRrazU1a2hCMkhhVWtYX1BMelZkdG1WY3M5ZXpldGZObkN6R09KWWZPZTMxY2RielBmb01tbWUtZUdEN3A2cmJIQ0Q1eEhxZjFYbFI5WkZZSWNrVFhZTEx6ZlhJVUo0bk0xUndlVWhjUk1DOEhtOHpKTVVz?oc=5" target="_blank">Meet Lenny’s Memory: Building context graphs for AI agents</a> <font color="#6f6f6f">Neo4j</font>
gnews-zep →Feb 17, 2026
News Mention: Agent Memory: Why Your AI Has Amnesia and How to Fix It - Oracle…
Agent Memory: Why Your AI Has Amnesia and How to Fix It - Oracle Blogs <a href="https://news.google.com/rss/articles/CBMilAFBVV95cUxNV3pqZVBnU29IUHVPT09LZ1B1RFJDWGV6bXd4Q0pkV284UXpBVkNZSFJwMmFxcmc1ZlBWNlNLUTA0V2NQcm5vVFZ1d0dsNVJNdnVKU3FKWmRGcTdSendzRHhTZTI5NXA1NG45TzUteU42MkRPblU0MS0tcElJU3pMWk9vdUJVVklPUGdzc1laX05HekN3?oc=5" target="_blank">Agent Memory: Why Your AI Has Amnesia and How to Fix It</a> <font color="#6f6f6f">Oracle Blogs</font>
gnews-zep →Mar 3, 2026
News Mention: AI Agent Memory Architecture: From Zero to Production - Let's Data Science <a href="https://news.google.com/rss/articles/CBMibkFVX3lxTE1EckxwcUJ5UjFNVGY1TW9RTFozZXhxY3BjYXJpN1hHZ21tMXdoME55YlpaUDJ6RjU3TFo4VTVUblNGTjBfTTczU2NicTJGSTVuRTZXcGtJaVBTTFdnWTNsR0xXR2pfU2NsMnJNLThB?oc=5"…
AI Agent Memory Architecture: From Zero to Production - Let's Data Science <a href="https://news.google.com/rss/articles/CBMibkFVX3lxTE1EckxwcUJ5UjFNVGY1TW9RTFozZXhxY3BjYXJpN1hHZ21tMXdoME55YlpaUDJ6RjU3TFo4VTVUblNGTjBfTTczU2NicTJGSTVuRTZXcGtJaVBTTFdnWTNsR0xXR2pfU2NsMnJNLThB?oc=5" target="_blank">AI Agent Memory Architecture: From Zero to Production</a> <font color="#6f6f6f">Let's Data Science</font>
gnews-mem0 →Apr 12, 2026
News Mention: Resident Evil Star Milla Jovovich Shipped an AI Memory System. Devs Shredded Its Benchmarks…
Resident Evil Star Milla Jovovich Shipped an AI Memory System. Devs Shredded Its Benchmarks - HackerNoon <a href="https://news.google.com/rss/articles/CBMiswFBVV95cUxNTUFDaVFZSlJfQ1Q2azBCRzU4Smg2M2RyREVSd0YzSmpDUWRuM2EwVW1FRHRLWnFiT1JBVG9lajltUkJqaDczR0Y1TXpoLWtRRlJUUHNaZmJVZnBsdWNsVlQ5VkE3V1VyM2ViZUZiLWxha2ZxajU4TEtFa1dGMldzSzQyTjdSVDB4ZTFxWm1ZTmtZLXMzYkZrSjU4WkF0SmN5MmN1QWs0YWcyMm5xbElSTnFuWQ?oc=5" target="_blank">Resident Evil Star Milla Jovovich Shipped an AI Memory System. Devs Shredded Its Benchmarks</a> <font color="#6f6f6f">HackerNoon</font>
gnews-zep →May 5, 2026
News Mention: Letta Emerges from Stealth with $10M to Build AI Agents with Advanced Memory -…
Letta Emerges from Stealth with $10M to Build AI Agents with Advanced Memory - HPCwire <a href="https://news.google.com/rss/articles/CBMiwwFBVV95cUxQT01rZVBDLXZLR0NGVEZoaldqd3dIVEE5aHVLUGwxaW1Vb0s2ZDJyd1dqdWo1YzdIVjl0Q3pIZFRWSEp3VVR1VEZ3dmgyYW5WUDNOcXg5SksxTWROYlZIT25BeThMdWt1Qkl4YjMwXzc0NGlta203a1h4dUVtaV9YM0cxdWtQMHJxR25Qb0FNdzlJX25yXzZSSVVXU1R4TnFPRW5OZkZYNHE4YWY5a1R1OEZTdmtWNmJraUxubi1FVTNxMWc?oc=5" target="_blank">Letta Emerges from Stealth with $10M to Build AI Agents with Advanced Memory</a> <font color="#6f6f6f">HPCwire</font>
gnews-letta →May 11, 2026
News Mention: For Whom the Tokens Toll. An AI architect’s field report on… | by Adnan…
For Whom the Tokens Toll. An AI architect’s field report on… | by Adnan Masood, PhD. | May, 2026 - Medium <a href="https://news.google.com/rss/articles/CBMieEFVX3lxTE5wdnNLMnVrSVVJUk81TkVVdlhiY243bGlTdXA3Y3dXbkdyUE5DbTI5bkRHaFJBcWJ5MFVmb1dpTUN3OTNvLW41VHZkYzJkMXExb1RNbEhsRURFdnRBVW1rUnYxMHAyM2tCTW04N2hwTFc0c25zdU50aA?oc=5" target="_blank">For Whom the Tokens Toll. An AI architect’s field report on… | by Adnan Masood, PhD. | May, 2026</a> <font color="#6f6f6f">Medium</font>
gnews-zep →Jun 1, 2026
Major agent platforms increasingly bundle a dedicated memory provider rather than relying on raw…
Major agent platforms increasingly bundle a dedicated memory provider rather than relying on raw vector search — exemplified by AWS selecting Mem0 for its Agent SDK.
Knowledge base →Jun 1, 2026
Letta's MemGPT lineage popularized 'memory tiers' — paging information between a limited context window…
Letta's MemGPT lineage popularized 'memory tiers' — paging information between a limited context window and external stores like an operating system.
Knowledge base →Jun 1, 2026
Mem0 is the exclusive memory provider for the AWS Agent SDK and is among…
Mem0 is the exclusive memory provider for the AWS Agent SDK and is among the most-adopted open-source agent-memory layers.
Knowledge base →Jun 1, 2026
Zep provides temporal knowledge-graph memory for agents through its open-source Graphiti engine.
Knowledge base →Jun 1, 2026
Agent memory is now benchmarked separately from vector-database retrieval — using suites like LongMemEval…
Agent memory is now benchmarked separately from vector-database retrieval — using suites like LongMemEval and LoCoMo — signaling the market treats stateful memory and RAG as distinct layers.
Knowledge base →Jun 1, 2026
The agent-memory category — temporal knowledge graphs, OS-style memory tiers, and durable cross-session state…
The agent-memory category — temporal knowledge graphs, OS-style memory tiers, and durable cross-session state — emerged as a distinct middleware layer in 2026, separate from vector databases.
Knowledge base →Jun 1, 2026
Mem0, Zep, and Letta are the three most-cited agent-memory frameworks in 2026 developer comparisons.
Knowledge base →Jun 1, 2026
Unlike vector databases that store embeddings for retrieval, agent-memory systems manage evolving, time-aware state…
Unlike vector databases that store embeddings for retrieval, agent-memory systems manage evolving, time-aware state about users and tasks across sessions.
Knowledge base →
Milestones merged from 0 curated events, 10 verified facts (with observed dates), and 20 business signals from the last 24 months. Deduped by date + label; curated entries take precedence.
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