Cognition AI vs JSX Tool
Cognition AI vs JSX Tool, compared side by side on 14 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: Cognition AI is on 75/100 and JSX Tool on 11/100.
Where each one leads
Cognition AI
- our overall score: 75/100 against 11/100
- agent readiness: 53/100 against 25/100
- domain rating: 76/100 against 11/100
- headcount: 5 against 2
JSX Tool
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Cognition AI | JSX Tool |
|---|---|---|
| What it is | Building Devin, the first autonomous software engineer, to act as an exponential collaborator for human engineers. | A browser extension for React developers to quickly locate components and files for precise LLM interactions. |
| Category | AI Coding Assistant, AI Copilot, Agentic AI, Foundation Model | Active Developer Tools, B2B, Productivity, Design |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2023 | 2025 |
| Headquarters | San Francisco, United States | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | Cognition AI | JSX Tool |
|---|---|---|
| Employees | 5 | 2 |
| Total funding | $1.6B | Not published |
| Latest round | Series D | Not published |
| Valuation | $26B | Not published |
| LinkedIn followers | 6,150 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Cognition AI | JSX Tool |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 75/100 | 11/100 |
| Traction | 48/100 | 5/100 |
| Team | 60/100 | Not published |
| Search visibility | 83/100 | 13/100 |
| Quality | 88/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (53/100) | F (25/100) |
| Domain ratingLink authority, 0-100 | 76/100 | 11/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Cognition AI | JSX Tool |
|---|---|---|
| Hosting | Vercel | AWS |
| CDN | Vercel | CloudFront |
| Frameworks | Next.js, Tailwind CSS | Not detected |
What users say
| Measure | Cognition AI | JSX Tool |
|---|---|---|
| Reddit sentimentThreads we track | Not published | 2 positive, 0 negative across 3 threads |
“Launch HN: JSX Tool (YC F25) – A Browser Dev-Panel IDE for React.”r/hackernews
Cognition AI vs JSX Tool: common questions
Which is better, Cognition AI or JSX Tool?
On our 0-100 score Cognition AI rates higher (75/100 against 11/100). 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 14 data points above: read the rows that match what you are buying for.
How do Cognition AI and JSX Tool compare on the numbers?
Cognition AI leads on our overall score (75/100 against 11/100), agent readiness (53/100 against 25/100), domain rating (76/100 against 11/100), headcount (5 against 2).
What do real users say about Cognition AI and JSX Tool?
JSX Tool: 2 positive and 0 negative mentions across 3 Reddit threads we track, mostly in r/hackernews.
Read the full Cognition AI review and pricing or the JSX Tool review and pricing. You can also browse other Cognition AI alternatives we track.