Exafunction vs TestMu AI (Formerly LambdaTest)
Exafunction vs TestMu AI (Formerly LambdaTest), compared side by side on 20 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: Exafunction is on 53/100 and TestMu AI (Formerly LambdaTest) on 69/100.
Where each one leads
Exafunction
- funding raised: $28.0M against $121
TestMu AI (Formerly LambdaTest)
- our overall score: 69/100 against 53/100
- agent readiness: 60/100 against 29/100
At a glance
| Measure | Exafunction | TestMu AI (Formerly LambdaTest) |
|---|---|---|
| What it is | Exafunction provides a platform for deploying, managing, and scaling AI models and machine learning infrastructure. | Cloud-based platform for cross-browser testing and continuous testing. |
| Category | MLOps, AI Infrastructure, Developer Tools, Cloud Infrastructure | MLOps, Developer Tools, API Platform, Testing Platform |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2021 | 2017 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Exafunction | TestMu AI (Formerly LambdaTest) |
|---|---|---|
| Employees | 442 | 550 |
| Total funding | $28.0M | $121 |
| Latest round | Series A | Venture Round |
| LinkedIn followers | 78,962 | 71,902 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Exafunction | TestMu AI (Formerly LambdaTest) |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 53/100 | 69/100 |
| Traction | 57/100 | 30/100 |
| Team | 30/100 | 50/100 |
| Community | 8/100 | Not published |
| Search visibility | 26/100 | 31/100 |
| Quality | 60/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (29/100) | C (60/100) |
| Domain ratingLink authority, 0-100 | 82/100 | 80/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Exafunction | TestMu AI (Formerly LambdaTest) |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Vercel | Cloudflare |
| Frameworks | Not detected | Next.js, Tailwind CSS |
| Open source | No | Yes |
Exafunction vs TestMu AI (Formerly LambdaTest): common questions
Which is better, Exafunction or TestMu AI (Formerly LambdaTest)?
On our 0-100 score TestMu AI (Formerly LambdaTest) rates higher (69/100 against 53/100). 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 20 data points above: read the rows that match what you are buying for.
How do Exafunction and TestMu AI (Formerly LambdaTest) compare on the numbers?
Exafunction leads on funding raised ($28.0M against $121). TestMu AI (Formerly LambdaTest) leads on our overall score (69/100 against 53/100), agent readiness (60/100 against 29/100).
Read the full Exafunction review and pricing or the TestMu AI (Formerly LambdaTest) review and pricing. You can also browse other Exafunction alternatives we track.

