Deep Fission vs Radiant
Deep Fission vs Radiant, compared side by side on 19 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Deep Fission is on 47/100 and Radiant on 66/100.
Where each one leads
Deep Fission
- agent readiness: 44/100 against 26/100
- LinkedIn following: 5,500 against 994
Radiant
- our overall score: 66/100 against 47/100
- domain rating: 50/100 against 40/100
- headcount: 384 against 65
- funding raised: $518M against $271M
At a glance
| Measure | Deep Fission | Radiant |
|---|---|---|
| What it is | Pioneering underground small modular nuclear reactors for scalable, low-carbon baseload power. | Building the world's first mass-produced portable nuclear generators for anywhere power delivery. |
| Category | Advanced Nuclear, Small Modular Reactors, Clean Energy, Baseload Power | Nuclear Energy, Defense, Clean Energy, Manufacturing |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2023 | 2020 |
| Headquarters | Berkeley, United States | El Segundo, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Deep Fission | Radiant |
|---|---|---|
| Employees | 65 | 384 |
| Total funding | $271M | $518M |
| Latest round | IPO | Series D |
| Valuation | $1.7B | Not published |
| LinkedIn followers | 5,500 | 994 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Deep Fission | Radiant |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 47/100 | 66/100 |
| Traction | 58/100 | 60/100 |
| Team | 70/100 | 30/100 |
| Community | 15/100 | Not published |
| Search visibility | 34/100 | 72/100 |
| Quality | 40/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (44/100) | F (26/100) |
| Domain ratingLink authority, 0-100 | 40/100 | 50/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Deep Fission | Radiant |
|---|---|---|
| Hosting | AWS | Not detected |
| CDN | CloudFront | Cloudflare |
| Frameworks | Bootstrap | Not detected |
| Analytics | Google Analytics 4 | Not detected |
Deep Fission vs Radiant: common questions
Which is better, Deep Fission or Radiant?
On our 0-100 score Radiant rates higher (66/100 against 47/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 19 data points above: read the rows that match what you are buying for.
How do Deep Fission and Radiant compare on the numbers?
Deep Fission leads on agent readiness (44/100 against 26/100), LinkedIn following (5,500 against 994). Radiant leads on our overall score (66/100 against 47/100), domain rating (50/100 against 40/100), headcount (384 against 65), funding raised ($518M against $271M).
Read the full Deep Fission review and pricing or the Radiant review and pricing. You can also browse other Deep Fission alternatives we track.