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    AI

    Femke Plantinga Shares Company Brains 2x2 Matrix

    Tweet presents a 2x2 matrix classifying AI tools by upkeep owner and layer independence.

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    FP
    2 Sources, 28d ago, first seen 28d ago

    TLDR

    Femke Plantinga posted that four kinds of company brains exist on the market in 2026 and that only three qualify as actual company brains. The post includes an attached image of a matrix chart titled Company Brains. Axes contrast its own layer against a feature of something else, and you build and maintain against a vendor. Plantinga states that two questions reveal the trade-offs among harnesses: who runs the upkeep and whether the system stands as its own layer. Garry Tan retweeted the post.

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    2 Sources, first seen 28d ago

    Combined views

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    2 Sources, first seen 28d ago

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    24 comments
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    31 reposts
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    2 Sources

    @femke_plantingaThere are 4 kinds of company brains on the market in 2026. Only 3 of them are actually company brains (#4 is the one most teams have) Every harness makes different trade-offs. But you don't need to compare 20 vendors to see the shape of it. You just need two questions: → Who runs the upkeep - you, or a vendor? → Is the brain its own layer, or a feature of something else? Plot those two axes and the whole market falls into four families: 𝟭. 𝗗𝗲𝗱𝗶𝗰𝗮𝘁𝗲𝗱 𝗰𝗼𝗺𝗽𝗮𝗻𝘆 𝗯𝗿𝗮𝗶𝗻𝘀 → Slite, Hyper, Glean Its own layer, vendor maintained. Connects to your existing sources, handles the architecture, serves context as a graph or instant answers via UI/MCP. 𝟮. 𝗦𝗲𝗹𝗳-𝗵𝗼𝘀𝘁𝗲𝗱 𝗽𝗮𝘁𝘁𝗲𝗿𝗻𝘀 → GBrain, Supermemory, your own CLAUDE.md + markdown repo Same idea, own layer, except the upkeep is yours. GBrain, Karpathy's setup, the repos everyone forked in April. Total control, and you are now the maintenance team. 𝟯. 𝗠𝗲𝗺𝗼𝗿𝘆 𝗦𝗗𝗞𝘀 → Mem0, Letta, Zep Building blocks to give your product memory. The memory stays tied to your users, sessions and workflows, it never becomes shared context for the company. Different job, often mistaken for this one. 𝟰. 𝗕𝘂𝗻𝗱𝗹𝗲𝗱 𝗶𝗻𝗰𝘂𝗺𝗯𝗲𝗻𝘁𝘀 → Notion, Slack, SharePoint, Atlassian, Claude A brain-shaped layer inside a suite you already pay for. Which makes it the easiest thing on this list to switch on. But bundled brains are built to make that suite smarter. Not to be an independent brain across your stack. So the moment your context lives in Slack and Drive and Jira and someone's head, you don't have a company brain. You have a very good search bar inside one tool. We surveyed 149 teams and interviewed 10+ builders and users to map all of it into a free interactive ebook 👇 Get it here: https://slite.com/ebooks/company-brain?utm_source=twitter&utm_medium=organic-social&utm_campaign=company-brain-ebook&utm_content=femke-honeypot
    @garrytanRT @femke_plantinga: There are 4 kinds of company brains on the market in 2026. Only 3 of them are actually company brains (#4 is the one…

    2 Sources

    @femke_plantingaThere are 4 kinds of company brains on the market in 2026. Only 3 of them are actually company brains (#4 is the one most teams have) Every harness makes different trade-offs. But you don't need to compare 20 vendors to see the shape of it. You just need two questions: → Who runs the upkeep - you, or a vendor? → Is the brain its own layer, or a feature of something else? Plot those two axes and the whole market falls into four families: 𝟭. 𝗗𝗲𝗱𝗶𝗰𝗮𝘁𝗲𝗱 𝗰𝗼𝗺𝗽𝗮𝗻𝘆 𝗯𝗿𝗮𝗶𝗻𝘀 → Slite, Hyper, Glean Its own layer, vendor maintained. Connects to your existing sources, handles the architecture, serves context as a graph or instant answers via UI/MCP. 𝟮. 𝗦𝗲𝗹𝗳-𝗵𝗼𝘀𝘁𝗲𝗱 𝗽𝗮𝘁𝘁𝗲𝗿𝗻𝘀 → GBrain, Supermemory, your own CLAUDE.md + markdown repo Same idea, own layer, except the upkeep is yours. GBrain, Karpathy's setup, the repos everyone forked in April. Total control, and you are now the maintenance team. 𝟯. 𝗠𝗲𝗺𝗼𝗿𝘆 𝗦𝗗𝗞𝘀 → Mem0, Letta, Zep Building blocks to give your product memory. The memory stays tied to your users, sessions and workflows, it never becomes shared context for the company. Different job, often mistaken for this one. 𝟰. 𝗕𝘂𝗻𝗱𝗹𝗲𝗱 𝗶𝗻𝗰𝘂𝗺𝗯𝗲𝗻𝘁𝘀 → Notion, Slack, SharePoint, Atlassian, Claude A brain-shaped layer inside a suite you already pay for. Which makes it the easiest thing on this list to switch on. But bundled brains are built to make that suite smarter. Not to be an independent brain across your stack. So the moment your context lives in Slack and Drive and Jira and someone's head, you don't have a company brain. You have a very good search bar inside one tool. We surveyed 149 teams and interviewed 10+ builders and users to map all of it into a free interactive ebook 👇 Get it here: https://slite.com/ebooks/company-brain?utm_source=twitter&utm_medium=organic-social&utm_campaign=company-brain-ebook&utm_content=femke-honeypot
    @garrytanRT @femke_plantinga: There are 4 kinds of company brains on the market in 2026. Only 3 of them are actually company brains (#4 is the one…