The due diligence layer for early-stage investing

Five AI specialist agents evaluate a startup. They debate. A final judge scores it 0–100. You get an evidence-backed report in 15 minutes — not 3 weeks.

Evidence-backed
15-minute report
Manipulation-resistant

Early-stage is a guess dressed as judgment.

A deck, a call, a gut feel. That's what most early-stage decisions run on.

Athanor replaces the guess with structure: five specialist agents, a live debate between them, and a final score you can audit.

GemScore. Evidence-backed. Manipulation-resistant. Ready in 15 minutes.

Five agents. One debate. One score.

GemSeeker assigns a specialist agent to each dimension of a startup.

Market

Opportunity size, competitive dynamics, timing

Team

Founder-market fit, track record, execution signals

Product

Traction, technical feasibility, differentiation

Financials

Model viability, unit economics, capital efficiency

Risk

Red flags, scenario stress, manipulation signals

They run in parallel. Then they debate each other's conclusions. A Judge synthesizes and issues the GemScore — a calibrated 0–100 rating with evidence citations, flag severity, and a structured breakdown you can audit.

Not opinion. Not a vibe. A score you can defend.

Infrastructure

Athanor OS: the platform underneath.

The same engine. Available as infrastructure for your investment workflow.

Whether you screen 5 deals a month or 500, Athanor OS puts the GemSeeker engine in your stack — SDK access, custom pipelines, white-label — built for the teams who can't afford noise in their deal flow.

Explore Athanor OS
SDK & API access
Custom pipelines
White-label ready

Evaluated by the numbers.

What founders and investors say after running an evaluation.

"I recently used Athanor Market to assess our startup concept, and the experience was genuinely helpful. The dual-axis GemScore gave us a clear snapshot of both our current readiness for investors and the realistic upside we could achieve if we execute well. The expert feedback from the Circle of Alchemists pointed out blind spots we hadn't considered, saving us weeks of guesswork."

Mikhail

Founder

"I've been really impressed with Athanor so far. The idea of having an AI-native copilot for pre-due diligence is incredibly useful, especially at the early stages where clarity and structured thinking matter most. The GemScore system stands out — separating Readiness and Potential is a smart way to evaluate startups without oversimplifying them into a single number. It actually reflects how investors think."

Dan Reiner

Investor

"I tested the product on my own idea and was really satisfied with the result. The analysis feels structured, professional, and much more grounded than a typical LLM chat. It helped me see both the strengths and weak points of the idea and made me want to run it again with a more thoughtful input. I also liked the detailed AI analysis logging, the debate flow, and the potential/readiness matrix."

zerovoidrage

Founder

"What drew me to Athanor was its structured approach. As an operations manager, I value tools that help turn a project from a loose set of ideas into something more clear and complete, with visible risks and areas that need more work."

Gero

Operations Manager

"The combination of an evaluation layer with milestone-based execution makes this a genuinely useful tool for early-stage diligence."

VC Analyst

Venture Capital

"The free monthly evaluation makes it easy to get a feel for the product. Once I ran it, I understood immediately why investors would find this useful."

Founder

Early-stage startup

Built for your role.

For investors

Your deal flow. Filtered, not guessed.

Athanor Pro — your AI analyst. Available at 3am. Never biased by the founder's energy in the room.

You see more deals than you can diligence. Athanor Pro runs the first cut — fast, consistent, evidence-backed. Each evaluation gives you a GemScore, a red-flag summary, and a structured breakdown across all five dimensions.

  • Unlimited GemScore evaluations
  • Batch pipeline view
  • Export-ready reports for deal memos
  • Investor-grade summary per startup
Start with Athanor Pro

For founders

Know where you stand — before the meeting.

Get a GemScore. See what investors will see. Fix what's weak.

Investors screen out most startups in the first pass — on signals founders didn't know were being evaluated. Run your idea through Athanor. Get an honest score across market, team, product, financials, and risk. Not to discourage you — to sharpen you before the conversation that matters.

Tiers

Screening — free
GemScore Pass — $39
Assessment — $39
Verification — $199
See tiers →
Evaluate your startup

For platforms & networks

Embed the engine. Own the pipeline.

Athanor inside your accelerator, VC platform, or angel network.

Iframe integration, API access, or white-label — the GemSeeker evaluation engine running inside your product under your brand. Custom scoring parameters, consistent first-cut quality at volume. Your deal flow. Our engine. Your logo.

Start screening. Stop guessing.

Three ways in.

Founders

Run your first evaluation free.

Run your first evaluation →

Investors

Screen your deal flow with Athanor Pro.

Try Athanor Pro →

Builders

Integrate the GemSeeker engine via SDK.

Explore the SDK →
Start Free Analysis