Mem0 free tier includes Memory layer for AI agents and apps. Free plan: unlimited end users and community support… Verified October 2026. Compare with 3 alternatives in AI / ML.
Why caution: effective 2026-10-26 — On October 26, 2026, Mem0 stopped selling its Starter ($19/month), Growth and Pro plans to new accounts and moved to two plans, Free and Custom. On Free, Mem0 pays for model calls only for the first 30 days (10,000 adds and 1,000 retrievals a month); after that, adding memories needs your own LLM key, with which Free allows 50,000 adds and 10,000 retrievals a month. Mem0 Free accounts that signed up before October 26, 2026 have their model calls paid by Mem0 until November 25, 2026. Source ↗ Full history ↓
A verdict here is not a fixed property of the vendor. A one-off pricing event demotes a vendor while its recorded date falls in the last 180 days and then lapses on its own, with nothing about the vendor having changed; a standing condition — a free tier withdrawn and not restored, a product retired — does not lapse with time. This one rests on a record effective 2026-10-26, so it lapses on 2027-04-25 unless we record something new first.
Subtypes in AI / ML: agent_memory — stores what an agent is told or learns (conversations, documents, user activity) and returns the relevant part to the agent on later calls; the stored unit is a memory or fact, not a vector the caller computed. We read that on 2026-10-09 from https://mem0.ai/pricing, where it says: “Drop-in memory infrastructure for AI agents and apps.” How we use this.
Mem0's free tier offers Memory layer for AI agents and apps. Free plan: unlimited end users and community support… We rate it caution — one recorded pricing restructure, on 2026-10-26. Best for ai / ml workloads.
Memory layer for AI agents and apps. Free plan: unlimited end users and community support. For the first 30 days Mem0 pays for the model calls, with 10,000 adds and 1,000 retrievals a month. After that, adding memories needs your own LLM key (OpenAI, Anthropic, Azure OpenAI or OpenRouter), billed by your provider; Mem0 puts its recommended models at about $3.55 to $5.34 per 1,000 adds. With a key, Free allows 50,000 adds and 10,000 retrievals a month at no charge from Mem0. Without one, stored memories stay and up to 1,000 searches a month still work, but new adds return an error. Calls past a monthly limit return an error until the next month, unless you connect a key and turn on usage-based billing with a monthly cap you set (Mem0 shows the rate when you turn it on). Mem0 Free accounts that signed up before October 26, 2026 have model calls paid by Mem0 until November 25, 2026; after that, adding memories requires their own LLM key. Starter ($19/month), Growth and Pro are no longer sold to new accounts; existing subscribers keep their plans. Graph memory, user profiles, SSO and on-prem deployment are on the Custom plan, priced by Mem0's sales team. Under Mem0's terms (2026-08-03), Free Plan users grant Mem0 a perpetual licence to their content, including to train AI models; paid plans exclude that, apart from aggregated, de-identified data. Mem0 Open-Source (Apache 2.0) can be self-hosted.
We read that on 2026-11-13 from https://mem0.ai/pricing, and our check recorded: the page names Mem0 as "mem0" and states "1,000 retrievals a month" and "10,000 retrievals a month".
Free For developers building and testing with Mem0. Free home_primary_get-started Home Get Started Unlimited end users First 30 days: 10,000 adds and 1,000 retrievals a month, model calls on us With your own LLM key: 50,000 adds and 10,000 retrievals a month Usage-based billing past your limits, with a monthly cap you set Community support
How Mem0 compares against every one of the 3 we list, not against a selection of them. A surface with room for every member of a tied set may rotate their order. A surface with room for only some of them names none of them, because which ones it named would be the claim, and a claim seeded on the date is not the one we serve tomorrow. How we decide this.
| Service | Free Tier | Stability |
|---|---|---|
| Mem0 | Free | caution |
| Zep | Free Context and memory layer for AI agents: Zep gives an agent context from past conversations, user activity and changing preferences. The Free plan includes 10,000 credits a month, with no rollover or auto top-up. |
stable |
| Supermemory | Free Memory and search API for AI agents, with user profiles and plugins for coding agents. The Free plan is $0/month with $5 of credits included, renewed every month; plan credits do not roll over. |
stable |
| Cognee | Free Credits Open-source memory engine that turns documents and data into a knowledge graph agents can query. Cognee Cloud's Free plan is $0/month, labelled "Free forever", with no card required: 1 workspace, unlimited users and API calls, and 1M tokens included (Cognee's billing docs say 10M). |
stable |
Left out of this list: Hugging Face (shares no subtype with this product), Groq (shares no subtype with this product), Google Gemini API (shares no subtype with this product), Mistral AI (shares no subtype with this product), OpenRouter (shares no subtype with this product), Cloudflare Workers AI (shares no subtype with this product), Cerebras (shares no subtype with this product), Cohere (shares no subtype with this product), Brave Search API (shares no subtype with this product), OpenAI (shares no subtype with this product), Pinecone (shares no subtype with this product), Qdrant (shares no subtype with this product), Deepgram (shares no subtype with this product), Kaggle (shares no subtype with this product), Roboflow (shares no subtype with this product), Scale AI (shares no subtype with this product), AssemblyAI (shares no subtype with this product), Replicate (shares no subtype with this product), Baseten (shares no subtype with this product), Weights & Biases (shares no subtype with this product), Comet ML (shares no subtype with this product), Clarifai (we have not classified this record), Neptune.ai (we have not classified this record), Labelbox (shares no subtype with this product), Google Colab (shares no subtype with this product), Composio (shares no subtype with this product), DeepAR (none of this category's subtypes apply), Maxim AI (shares no subtype with this product), OCR.Space (shares no subtype with this product), Parseur (shares no subtype with this product), Reducto (shares no subtype with this product), SerpApi (shares no subtype with this product), Tavily AI (shares no subtype with this product), paperspace (shares no subtype with this product), Arize AX (shares no subtype with this product), Audio Enhancer (none of this category's subtypes apply), Braintrust (shares no subtype with this product), Clair (none of this category's subtypes apply), Keywords AI (shares no subtype with this product), Langfuse (shares no subtype with this product), LangSmith (shares no subtype with this product), Langtrace (we have not classified this record), LangWatch (shares no subtype with this product), Lumenfall.ai (shares no subtype with this product), Mediaworkbench.ai (none of this category's subtypes apply), Othor AI (none of this category's subtypes apply), Pollinations.AI (shares no subtype with this product), Portkey (shares no subtype with this product), ReportGPT (none of this category's subtypes apply), Zenable (none of this category's subtypes apply), xAI (shares no subtype with this product), Anthropic API (shares no subtype with this product), GitHub Models (shares no subtype with this product), NVIDIA NIM (shares no subtype with this product), Ollama Cloud (shares no subtype with this product), LLM7.io (shares no subtype with this product), SiliconFlow (shares no subtype with this product), Zhipu AI (shares no subtype with this product), DeepSeek API (shares no subtype with this product), MiniMax (shares no subtype with this product), Exa (shares no subtype with this product), GPU-Bridge (we have not classified this record), Google Vertex AI Agent Engine (we have not classified this record), Google Vector Search 2.0 (shares no subtype with this product), Google Gemini Embedding 2 (shares no subtype with this product), Alibaba Cloud Qwen Code (none of this category's subtypes apply), E2B (shares no subtype with this product), Together AI (shares no subtype with this product), Fireworks AI (shares no subtype with this product), Modal (shares no subtype with this product), ElevenLabs (we have not classified this record), Stability AI (we have not classified this record), Daytona (shares no subtype with this product), Blaxel (shares no subtype with this product), Novita Sandbox (shares no subtype with this product), Runloop (shares no subtype with this product), Letta (we have not classified this record), Serper (shares no subtype with this product), Linkup (shares no subtype with this product), Parallel (shares no subtype with this product), Jina AI (shares no subtype with this product), You.com (shares no subtype with this product), Hetzner Inference API (shares no subtype with this product), Cloudflare AI Search (we have not classified this record), Valyu (shares no subtype with this product). Each is still listed in AI / ML, with the vendor's own words we read that from on its page. How we decide this.
We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.
curl https://agentdeals.dev/api/changes?vendor=Mem0
curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=Mem0