About TheoSumma
The Christian AI
built for theology.
TheoSumma is a free, Scripture-rooted Christian AI companion for seekers, thinkers, pastors, and scholars. Chat with the great theologians, study the Bible with citations, and explore systematic theology as a connected whole — not a scattered list of topics.
Why TheoSumma exists
Serious theology is hard to find online. Search engines return sermons, opinion blogs, and Wikipedia stubs. General-purpose AI tools hallucinate citations, confuse traditions, and flatten two thousand years of Christian thought into a confident paragraph.
TheoSumma is the alternative. It is a Christian AI trained on primary sources, anchored to Scripture, and built to cite — not invent. Whether you are preparing a sermon, writing a thesis, teaching a catechism class, or asking an honest question about the faith, the answers come from the tradition, not from nowhere.
Our mission is simple: make classical Christian theology as accessible as a chat — without diluting it, politicising it, or pretending the hard questions are easy.
What you can do with TheoSumma
Scripture first, always
Every answer is grounded in the biblical text. The Christian AI surfaces verses, cross-references, and classical theological sources — so you can verify, not just read.
The great theologians, in conversation
Chat with AI experts trained on the works of Augustine, Aquinas, Calvin, Luther, Barth, Lewis, Newman, and thirty more. Each expert cites the primary corpus they were trained on.
Theology as a system, not a list of topics
Our systematic theology surface maps doctrine — Christology, soteriology, ecclesiology, eschatology — as a connected whole. Explore it at your own pace, or ask a specialist agent.
Ecumenical by design
TheoSumma is not aligned with one tradition. Catholic, Orthodox, Reformed, Lutheran, Anglican, Baptist, Methodist, Pentecostal — each is represented on its own terms, with its own sources.
A companion, not a replacement
The Christian AI does not replace your pastor, your spiritual director, or the sacramental life of the Church. It is a study partner — faster than Google, more honest than a search engine, more rigorous than a chatbot.
Built for everyone who takes theology seriously
Seminary students, working pastors, lay catechists, skeptics, converts, lifelong believers. If you want to think harder about the Christian faith, TheoSumma is for you.
Who built this
TheoSumma is built by a small team of Christian engineers, theologians, and researchers. We come from different traditions — Catholic, Orthodox, and Protestant — and we share one conviction: that the Church needs technology that serves her, not the other way around.
The platform is not venture-backed and not ad-supported. It is sustained by a small percentage of users on our paid plans so the core product — the Christian AI, Bible study, theological research — can remain free forever for everyone else.
Start a conversation with the tradition
TheoSumma responses are generated by a Christian AI grounded in Scripture and classical theological sources. Answers include citations so you can verify the primary texts. The AI does not replace pastoral counsel, sacramental life, or seminary formation.