companies / cartesia-ai
Generated UTC · publication cutoff 2026-11-09
Insufficient cited evidence for a two-sentence summary.
Cartesia was listed in Index Ventures's portfolio, recorded 2026-09-27.
verified=2026-05-05 json
| total_raised | 91,000,00091.0M | ○ |
|---|---|---|
| founded | 2023 | |
| hq | San Francisco | |
| industry | unknown | |
| stage | series-a |
Cartesia builds text-to-speech models for voice agents and interactive applications, with a focus on real-time conversational use. It targets enterprises and developers building customer service bots, gaming NPCs, and healthcare scheduling agents. The Sonic-3 model replies in under 100 milliseconds with emotional expression and laughter, keeping conversations feeling natural rather than robotic.
No cited completed company acquisition recorded.
Dated disclosures. Customer relationships and classifications are historical; ARR is separate from revenue.
No cited disclosure recorded: named customer, disclosed revenue, ARR, count, B2B / B2C, sector, go-to-market.
No cited valuation with an explicit basis is recorded.
Historical post-money / actual annual or stated TTM revenue. Same currency; economic valuation date within 90 days of revenue period end, inclusive. No FX, ARR, annualized revenue, estimates or projections. Conflicts and ambiguous ties are withheld.
No qualifying pair recorded.
| date | type | amount | lead | src |
|---|---|---|---|---|
| 2025-03-11 | series-a | 64,000,00064.0M | null | ○ |
| investor | src |
|---|---|
| Index Ventures | ○ |
| Lightspeed Venture Partners | ○ |
Google Analytics, Google Tag Manager, Framer Sites, Cart Functionality, React 16.13.1, PHP
| fact | status | src |
|---|---|---|
| Series A, $64.0M | attributed | ○ |
| Investor Index Ventures | sourced | WEB |
| existence | self-reported | WEB |
| description | self-reported | WEB |
| date | fact | change | src |
|---|---|---|---|
| 2026-09-27latest_round: series-a, $64.0M, 2025-03-11, lead: index-ventures → series-a, $64.0M, 2025-03-11, lead: null, ○ 2026-05-05 | latest_round | series-a, $64.0M, 2025-03-11, lead: index-ventures → series-a, $64.0M, 2025-03-11, lead: null | ○ 2026-05-05 |
| 2026-09-27provenance_investor_index_ventures: unknown → sourced, WEB 2026-09-27 | provenance_investor_index_ventures | unknown → sourced | WEB 2026-09-27 |
Records begin 2026-09-24. all_changes