RadGrants vs Granted AI: the honest comparison
If you’re weighing an AI tool for SBIR/STTR work, Granted AIis the closest thing to a direct comparison — and it’s a genuinely capable, established product. So this page is fair, not a hit piece: here’s what each tool actually does, where they overlap, and the one real reason a founder might pick RadGrants — the grounding layer plus free credits discovery.
Credit where it’s due — what Granted AI does well
Granted AI combines grant discovery, AI drafting, and an “AI Review Board” where several independent AI reviewers deliberate on your draft. It explicitly markets NSF, NIH, and SBIR, so it’s purpose-built for federal grant work, and it’s priced as an accessible subscription (roughly $29–$89/mo per its published tiers — confirm the current pricing on their site). If you want a guided, all-in-one grants subscription with a strong review step, it’s a reasonable choice. We’re not going to pretend otherwise.
Where RadGrants is different
- ✓Grounded, provenance-first drafting.Granted AI’s review board critiques a draft’s quality. RadGrants’s verification pass does something different: it requires every claim to be entailed by a source you supplied, and flags anything unsupported as “needs input” rather than inventing it. With NIH defining “substantially developed by AI” and funders requiring AI-use disclosure, that provenance discipline is becoming table stakes.
- ✓Free credits discovery.Cloud/AI credits — AWS Activate, Microsoft for Startups, Anthropic Claude, NVIDIA, Vercel, Google — are non-dilutive money most grant tools ignore because they aren’t “grants.” RadGrants matches them for free, so a founder can put real money in their pocket today.
- ✓Free discovery, no signup. The matcher is free and requires no account; you only pay if you choose to generate a grounded draft. No subscription to find out what you qualify for.
- ◇Honest about scope. RadGrants is newer and narrower — focused on the SBIR/STTR-founder niche plus credits, not every federal and foundation program. If you need broad multi-agency coverage and a mature subscription workflow today, Granted AI is more established.
Side by side
Granted AI details are from its published materials and third-party guides (directional — confirm current features and pricing on grantedai.com). RadGrants details describe this product’s actual surface.
| Dimension | RadGrants | Granted AI |
|---|---|---|
| Core motion | Free discovery (credits + grants) → grounded drafting from your own sources. | Discovery → match → AI draft → an "AI Review Board" of independent AI reviewers. |
| Federal / SBIR focus | SBIR/STTR-founder niche; dogfooded on our own real NSF SBIR Phase I. | Explicitly markets NSF / NIH / SBIR — a strong, established federal focus. |
| Cloud / AI credits | Yes — matches AWS Activate, Microsoft for Startups, Anthropic Claude, NVIDIA, Vercel, Google. Free. | Not a focus — Granted AI is a grants product, not a credits matcher. |
| How drafts are checked | A grounding/verification pass: every claim must be entailed by a source you supplied; unsupported claims are flagged, gaps marked "needs input" — not invented. | Multiple AI reviewers deliberate on the draft — a strong review step; it critiques quality rather than tracing each claim to applicant-supplied source data. |
| Discovery pricing | Free — no signup required. | Subscription that bundles discovery with drafting (~$29–$89/mo per published tiers; confirm current pricing on their site). |
| Draft pricing | Planned pay-per-application (intro pricing) rather than a monthly subscription — confirm current pricing in-app. | Subscription tiers (~$29–$89/mo) covering discovery + drafting + review. |
Not affiliated with, endorsed by, or sponsored by Granted AI. “Granted AI” is referenced for honest comparison only; all trademarks belong to their respective owners.
Which should you pick?
Pick Granted AIif you want one established subscription that covers broad federal/foundation discovery, AI drafting, and a multi-reviewer review step, and you’re comfortable paying monthly.Pick RadGrants if you want to find what you qualify for — including cloud/AI credits — for free with no signup, and you care that your draft is grounded: every claim traced to a source you supplied, gaps flagged instead of fabricated. Many founders will sensibly start with the free RadGrants discovery either way, since it costs nothing to see the credits and grants you’re eligible for.
See it for yourself — free, no signup. The matcher checks real cloud/AI credits and SBIR/STTR grants against your profile and ranks them by realistic value ÷ effort.
Frequently asked questions
What is the best free alternative to Granted AI?
RadGrants is a free alternative for the discovery step: it matches your company profile against real cloud/AI credit programs and SBIR/STTR grants and ranks them by realistic value divided by effort, with no signup required. Granted AI is a paid subscription (roughly $29–$89/mo per its published tiers) that bundles discovery with AI drafting and an AI review board, and it has a strong, established NSF/NIH/SBIR focus. If you want to find what you qualify for — including cloud credits, which Granted AI does not focus on — without paying, RadGrants is the free option. For the drafting step, RadGrants's differentiator is a grounding layer that flags unsupported claims rather than inventing them.
How is RadGrants different from Granted AI?
Two main differences, and they are honest ones. First, scope: RadGrants covers cloud/AI credits (AWS Activate, Microsoft for Startups, Anthropic Claude, and more) alongside SBIR/STTR grants, whereas Granted AI is a grants product focused on NSF/NIH/SBIR. Second, how drafts are checked: Granted AI runs an AI review board where several AI reviewers deliberate on the draft's quality, while RadGrants runs a grounding/verification pass that requires every claim to be entailed by a source the applicant actually supplied and flags anything unsupported as 'needs input' instead of fabricating it. Granted AI is a capable, established tool; RadGrants's wedge is free discovery plus that provenance-first drafting discipline.
Is Granted AI good for NSF SBIR applications?
Yes. Granted AI explicitly markets NSF, NIH, and SBIR and combines discovery, AI drafting, and a multi-reviewer AI review step, which is a reasonable fit for federal grant work. This page is not a knock on Granted AI. RadGrants targets the same SBIR-founder niche but leads with two things Granted AI does not center: free cloud/AI credits matching, and a grounding layer that traces each drafted claim back to the applicant's own source data so over-claims and fabricated citations are caught before a program officer sees them.
Why does claim-grounding matter for AI grant drafts?
Because funders are increasingly wary of AI-generated text. NIH has defined what 'substantially developed by AI' means and other funders now require AI-use disclosure, while fabricated citations are a documented, named failure mode of language models. A drafting approach where no claim ships unless a real applicant source entails it — and unsupported claims are flagged rather than hidden — is what that environment rewards. That grounding layer is the core of how RadGrants drafts, and it is the main reason a founder might choose it over a generalist AI grant writer.
Does RadGrants cost anything?
Discovery is free and requires no signup — you enter a short profile and get a ranked, eligibility-checked list of the cloud/AI credits and grants you qualify for. The grounded drafting tool is the paid part (planned as pay-per-application with intro pricing rather than a monthly subscription); confirm current pricing in the app. The free discovery layer, including credits matching, is genuinely free and is the fastest way to put real non-dilutive money in front of a founder.
New here? Start with the free matcher, compare cloud & AI credits, or read the NSF SBIR Phase I guide. The dogfood case study shows the grounding layer on our own real SBIR.