Antithesis vs Diffblue
Antithesis vs Diffblue, 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: Antithesis is on 46/100 and Diffblue on 55/100.
Where each one leads
Antithesis
- domain rating: 71/100 against 62/100
- headcount: 198 against 31
- LinkedIn following: 7,457 against 5,005
Diffblue
- our overall score: 55/100 against 46/100
At a glance
| Measure | Antithesis | Diffblue |
|---|---|---|
| What it is | Antithesis is an autonomous software testing platform that finds the bugs others miss. | Automates Java unit test creation for enterprise software development. |
| Category | Cybersecurity, AI Infrastructure, Developer Tools, Vulnerability Management | AI Coding Assistant, Developer Tools, MLOps, Software Testing |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2021 | 2017 |
| Headquarters | San Francisco, United States | Oxford, United Kingdom |
| Status | Active | Active |
Size, funding and growth
| Measure | Antithesis | Diffblue |
|---|---|---|
| Employees | 198 | 31 |
| Headcount growthLast 12 months | +101.8% | Not published |
| Total funding | $118M | Not published |
| LinkedIn followers | 7,457 | 5,005 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Antithesis | Diffblue |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 46/100 | 55/100 |
| Traction | 60/100 | Not published |
| Team | 60/100 | 24/100 |
| Community | 15/100 | Not published |
| Search visibility | 22/100 | 67/100 |
| Quality | 40/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (38/100) | D (40/100) |
| Domain ratingLink authority, 0-100 | 71/100 | 62/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Antithesis | Diffblue |
|---|---|---|
| Hosting | AWS | Vercel |
| CDN | CloudFront | Cloudflare |
| CMS | Ghost | Not detected |
| Frameworks | Astro | Next.js, Tailwind CSS |
| Analytics | Google Tag Manager | Google Tag Manager |
| Open source | Yes | Yes |
What users say
| Measure | Antithesis | Diffblue |
|---|---|---|
| Reddit sentimentThreads we track | 1 positive, 0 negative across 1 thread | Not published |
“Antithesis - The Deterministic Computer. submitted by /u/Tybug2 to r/programming [link] [comments]”r/programming
Antithesis vs Diffblue: common questions
Which is better, Antithesis or Diffblue?
On our 0-100 score Diffblue rates higher (55/100 against 46/100). 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 Antithesis and Diffblue compare on the numbers?
Antithesis leads on domain rating (71/100 against 62/100), headcount (198 against 31), LinkedIn following (7,457 against 5,005). Diffblue leads on our overall score (55/100 against 46/100).
What do real users say about Antithesis and Diffblue?
Antithesis: 1 positive and 0 negative mentions across 1 Reddit threads we track, mostly in r/programming.
Read the full Antithesis review and pricing or the Diffblue review and pricing. You can also browse other Antithesis alternatives we track.

