Sefiron AI
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One Question. A Sourced Answer.
Sefiron shows the research it did, the data it found, and where every figure came from.
Compare P/E ratios for Apple, Microsoft and Nvidia
Apple trades richest on trailing earnings at 39.1x, against 28.7x for Microsoft and 28.5x for Nvidia.
Sources(3)
Professional-Grade Analysis, Powered by AI
Everything you need to research a company, a sector or a trade, in a browser.
Real-Time Market Data
Live quotes, historical prices, and company fundamentals — instantly charted and analyzed.
Regulatory & Market Data
Search SEC filings, short interest, dark pool activity, and threshold lists — all from natural language queries.
Web-Augmented Research
Sefiron searches the web when needed, cross-referencing live sources with your market data.
Agentic AI Workflow
Our AI plans multi-step research, calls the right tools in parallel, and synthesizes a sourced answer — not just a chat reply.
Citations & Transparency
Every answer cites its sources. See the steps the AI took, the tools it called, and the data it used.
Prediction Markets
Live odds across major prediction markets — elections, economics, sports, and more — searchable in plain English alongside your market analysis.
Ask Anything Financial
Sefiron understands natural language. Just type a question and the AI agent does the rest.
"Compare Apple's P/E ratio to the sector average"
Pulls live quote, company info, and contextualizes against peers.
"Show me Tesla's short interest trend over the past year"
Fetches reported short interest and charts the history.
"Summarize the latest NVIDIA earnings filing"
Finds the SEC filing, converts to markdown, and summarizes.
"How likely is a Fed rate cut at the next meeting?"
Surfaces prediction-market odds and compares them to recent macro data.
How It Works
Ask a Question
Type any financial question in plain English — from quotes and fundamentals to prediction-market odds.
AI Researches
The agent plans its approach, calls market data APIs, searches SEC filings, and pulls live prediction-market quotes in parallel.
Get Insights
Receive a sourced answer with interactive charts, citations, and step-by-step transparency.
Why Not Just Use Claude or Codex?
You could get a long way with one. Point an agentic coding tool at a few data APIs and you'll have something working by the weekend. Sefiron saves you the part that comes after: normalized data from a dozen sources, a citation on every claim, the domain rules, and the upkeep.
| Capability | General AI assistantsClaude, ChatGPT | Agentic coding toolsClaude Code, Codex, OpenCode | Market terminalThe one on a trading desk | Sefiron |
|---|---|---|---|---|
| Live market data | PartialWeb search, page by page | PartialOnce you wire up a feed | YesIncluded | YesBuilt in, fetched per query |
| Regulatory and filing data | PartialOnly what a page shows | PartialOnce you parse the feeds | YesIncluded | YesDirect from EDGAR and FINRA |
| A citation on every claim | PartialCites pages it browsed | PartialTool calls, not claims | PartialYou track provenance | YesPer claim, in the answer |
| Runs real calculations | YesSandboxed code | YesFull local toolchain | PartialExport to a spreadsheet | YesSandboxed Python |
| Knows the financial gotchas | NoGeneral purpose | NoYours to encode | YesBuilt for markets | YesBuilt for markets |
| Prediction-market odds | PartialOnly what a page shows | PartialOnce you wire up the APIs | PartialRarely covered | YesKalshi and Polymarket |
| Charts in the answer | YesInline, if you ask | YesWrites a file you open | YesNative | YesInline, by default |
| Nothing to assemble | YesNothing to set up | NoYou assemble the stack | PartialSetup, plus training | YesOpen it and ask |
| Somebody else maintains it | YesVendor maintains it | NoYours to keep alive | YesVendor maintains it | YesOurs to keep alive |
| Cost to start | YesLow subscription | PartialCheap, plus your time | NoFive figures per seat | YesFree credits, then plan or usage |
Built by Industry Veterans
The Sefiron team brings 20+ years of experience at major investment banks and hedge funds. We built the tools we always wished we had — institutional-grade research, accessible to everyone.
Common Questions
What is Sefiron?
Sefiron is an AI research agent for financial questions. You ask in plain English, and it plans the research itself: it pulls live market data, searches SEC filings, checks regulatory feeds and prediction markets, runs any calculations it needs, and returns a written answer with interactive charts and a citation for every source it used.
Why not just use Claude, ChatGPT, Codex or OpenCode?
That could work. But then you are stuck setting up the feeds, normalizing data, plumbing through citations and replicating the work that's already gone into Sefiron. Wouldn't you rather be trading?
Do I need a finance background to use it?
No. There is no query language and nothing to configure. Type a question the way you would ask a colleague, like "is Tesla expensive relative to its sector?", and Sefiron works out which data it needs. If a term in the answer is unfamiliar, ask it to explain.
Is Sefiron financial advice?
No. Sefiron is a research and information tool, not a broker, adviser or registered investment adviser. It does not make recommendations, manage money or place trades, and nothing it produces is a solicitation to buy or sell any security. Every decision is yours.
What data can Sefiron reach?
- Market data — live quotes and price history, company fundamentals, options chains, analyst estimates, earnings, corporate actions and ownership
- SEC EDGAR — company filings, searched and converted to readable text
- FINRA — short interest, short volume, threshold lists and OTC/ATS activity
- Prediction markets — live odds from Kalshi and Polymarket, plus on-chain flow and trader positions
- Sports — playoff series state and league tables for the major leagues
- The open web — when a question needs something the sources above do not cover
- Your own documents — PDFs and images you upload, converted to searchable text
Get in Touch
Questions? Interested in enterprise pricing? Drop us a line.