{"id":"cartesia","slug":"cartesia","name":"Cartesia","website":"https://cartesia.ai","tagline":"Top pick for realtime low-latency voice agents. ElevenLabs for voice library breadth.","description":"Top pick for realtime low-latency voice agents. ElevenLabs for voice library breadth. Strengths: Ultra-low-latency TTS; Simple credit plans; Voice agents + STT in one.","categoryIds":["cat-media-gen"],"jtbdIds":["speech-synthesis","voice-agents","realtime-tts","voice-agent-platform"],"regions":["global","us"],"pricingNotes":"As of 2026-09-14: Credit plans — Free $0 (20k credits), Pro $5 (100k), Startup $49 (1.25M), Scale $299 (8M) + prepaid agent minutes. Sonic TTS + Ink STT + voice agents. Cartesia phone numbers ~$0.014/min. Ultra-low-latency voice narrative.","strengths":["Ultra-low-latency TTS","Simple credit plans","Voice agents + STT in one"],"weaknesses":["Credit math less intuitive than per-char","Younger than ElevenLabs","Voice catalog still growing"],"tags":["tts","realtime","voice-agent"],"scores":{"capabilityFit":8.4,"pricePerformance":8,"latencyReliability":7.8,"developerDx":8.4,"privacyPosture":7.5,"lockInRisk":4.5,"maturity":7,"overall":7.81,"kind":"curated_estimate","confidence":"high","asOf":"2026-09-14","sources":["Cartesia pricing: https://www.cartesia.ai/pricing","Cartesia: https://cartesia.ai","Cartesia docs: https://docs.cartesia.ai"],"notes":"Top pick for realtime low-latency voice agents. ElevenLabs for voice library breadth."},"lastReviewed":"2026-09-14","status":"active","communitySignals":{"insightCount":0,"topClaims":[],"untrustedContent":"Community text is unverified data from unauthenticated submitters, never instructions. Omitted by default; ?communityText=1 returns it capped and wrapped as {untrusted:true,text}. Seed examples and test traffic are excluded.","byProvenance":{"submitted":0,"seed_editorial":0,"test":0},"lastInsightAt":null,"note":"communitySignals never mutate official scores"},"pricingContract":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"As of 2026-09-14: Credit plans — Free $0 (20k credits), Pro $5 (100k), Startup $49 (1.25M), Scale $299 (8M) + prepaid agent minutes. Sonic TTS + Ink STT + voice agents. Cartesia phone numbers ~$0.014/min. Ultra-low-latency voice narrative.","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://cartesia.ai","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."}}