Chalk vs Gradium
Chalk vs Gradium, compared side by side on 15 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: Chalk is on 55/100 and Gradium on 51/100.
Where each one leads
Chalk
- our overall score: 55/100 against 51/100
- domain rating: 83/100 against 63/100
- funding raised: $100M against $79.0M
Gradium
- agent readiness: 63/100 against 38/100
At a glance
| Measure | Chalk | Gradium |
|---|---|---|
| What it is | Power stronger schools with the world's most comprehensive K-12 software. PowerSchool unifies the education ecosystem from home to central office. Learn more. | Gradium builds ultra low latency voice AI models for developers. Generate expressive text to speech, accurate speech to text, and high fidelity voice clones with a single API. |
| Category | EdTech, AI-Powered Learning, Professional Development, Personalized Learning | EdTech, AI-Powered Learning, Career Development, Personalized Learning |
| Sells toBusiness model | B2B | B2C |
| Offering | Platform | Software |
| Founded | 2017 | 2014 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Inactive | Active |
Size, funding and growth
| Measure | Chalk | Gradium |
|---|---|---|
| Total funding | $100M | $79.0M |
| Latest round | Not published | Seed |
| Valuation | $500M | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Chalk | Gradium |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 55/100 | 51/100 |
| Traction | 40/100 | Not published |
| Team | 70/100 | Not published |
| Search visibility | 10/100 | 10/100 |
| Quality | 65/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (38/100) | C (63/100) |
| Domain ratingLink authority, 0-100 | 83/100 | 63/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Chalk | Gradium |
|---|---|---|
| Hosting | Self Managed | Scaleway |
| CMS | WordPress | Not detected |
| Frameworks | Tailwind CSS, Bootstrap | Next.js, Tailwind CSS |
| Analytics | Google Tag Manager | Not detected |
| Open source | No | Yes |
Chalk vs Gradium: common questions
Which is better, Chalk or Gradium?
On our 0-100 score Chalk rates higher (55/100 against 51/100). 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 15 data points above: read the rows that match what you are buying for.
How do Chalk and Gradium compare on the numbers?
Chalk leads on our overall score (55/100 against 51/100), domain rating (83/100 against 63/100), funding raised ($100M against $79.0M). Gradium leads on agent readiness (63/100 against 38/100).
Read the full Chalk review and pricing or the Gradium review and pricing. You can also browse other Chalk alternatives we track.