Circle Labs vs Retell AI
Circle Labs vs Retell AI, compared side by side on 16 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: Circle Labs is on 49/100 and Retell AI on 63/100.
Where each one leads
Circle Labs
Leads on none of the measures we hold for both companies.
Retell AI
- our overall score: 63/100 against 49/100
- agent readiness: 61/100 against 21/100
- domain rating: 76/100 against 26/100
- funding raised: $14.0M against $4.2M
At a glance
| Measure | Circle Labs | Retell AI |
|---|---|---|
| What it is | Generative AI friends and AI-powered virtual characters (Shapes) for social platforms. | Voice AI agent platform handling more calls per second than the US 911 system, $60M ARR with a 35-person team. |
| Category | Agentic AI, AI Agents, Generative AI, Large Language Model | Agentic AI, AI Agents, AI Voice Synthesis, AI Voice Cloning |
| Sells toBusiness model | B2C | B2B |
| Offering | Platform | Platform |
| Founded | 2020 | 2023 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Inactive | Active |
Size, funding and growth
| Measure | Circle Labs | Retell AI |
|---|---|---|
| Employees | Not published | 35 |
| Total funding | $4.2M | $14.0M |
| Latest round | Seed | Seed |
| LinkedIn followers | Not published | 20,979 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Circle Labs | Retell AI |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 49/100 | 63/100 |
| Traction | 33/100 | 66/100 |
| Team | 70/100 | 60/100 |
| Community | Not published | 8/100 |
| Search visibility | 21/100 | 48/100 |
| Quality | 58/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (21/100) | C (61/100) |
| Domain ratingLink authority, 0-100 | 26/100 | 76/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Circle Labs | Retell AI |
|---|---|---|
| CDN | Not detected | Cloudflare |
| CMS | Not detected | Webflow |
| Analytics | Not detected | Google Analytics 4, Google Tag Manager, Mixpanel, Linkedin Insight +1 more |
Product and pricing
| Measure | Circle Labs | Retell AI |
|---|---|---|
| Key features | Not published | AI Voice Agent Platform, Auto-Sync Knowledge Base, Powerful Call Transfer, Easy Appointment Booking, IVR Navigation & Batch Calling, Compliance & Scalability |
Circle Labs vs Retell AI: common questions
Which is better, Circle Labs or Retell AI?
On our 0-100 score Retell AI rates higher (63/100 against 49/100). 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 16 data points above: read the rows that match what you are buying for.
How do Circle Labs and Retell AI compare on the numbers?
Retell AI leads on our overall score (63/100 against 49/100), agent readiness (61/100 against 21/100), domain rating (76/100 against 26/100), funding raised ($14.0M against $4.2M).
Read the full Circle Labs review and pricing or the Retell AI review and pricing. You can also browse other Circle Labs alternatives we track.