AI visibility report
Twilio ranks #2 in Communications APIs AI search.
Outside the top three on 13 of the 25 prompts buyers actually ask.
Knock is cited on 6 of those losses.
Free trial. Setup comes pre-filled for Twilio.
Also benchmarked
Twilio appears in 2 other verticals
Track Twilio across these prompts daily.
Start free trial#2 among 12 vendors · still absent from 80.7% of tracked prompt responses
Top-3 citations across 150 prompt × platform pairs
Peer Ranking
Key Metrics
Platform Breakdown
Grok
ChatGPT
Perplexity
Bing Copilot
Gemini Search
Google AI ModeHow to read this. Twilio appears in 19.3% of tracked prompt responses and ranks #2 among 12 vendors. Presence is absolute coverage; share of voice is relative citation share; sentiment measures tone only when the brand appears.
Where Twilio is losing
Prompts where competitors are visible and Twilio is not.
These prompt-level losses are the first prompts to track and repair.
Where Twilio is winning3
Which multi-channel notification platforms support fallback logic — like falling back to SMS if a push notification isn't opened within an hour?
Avg # 2.0 · 1 platform
Which unified communications APIs handle both programmatic email sending and visual template editing for non-technical teams?
Avg # 2.6 · 5 platforms
What tools help load test a notification system to ensure it handles a burst of 1 million emails without queue buildup?
Avg # 3.0 · 1 platform
Where Twilio is losing5
Which communications API platforms are designed with portability in mind — making it easy to swap providers for routing and template logic without a full rewrite?
Competitors on 3 platforms
Track this promptWhich notification infrastructure platforms handle user preference management best so recipients can control what they receive and on which channel?
Competitors on 3 platforms
Track this promptWhich notification infrastructure platforms integrate with CDPs to drive personalized cross-channel messaging automatically?
Competitors on 3 platforms
Track this promptWhich communications APIs support building real-time in-app chat with message threading, reactions, and file attachments, not just simple notifications?
Competitors on 2 platforms
Track this promptWhich transactional email API providers deliver the best inbox placement rates and give you the most control over deliverability factors?
Competitors on 2 platforms
Track this prompt
Track Twilio daily before the next report refresh.
Track these gapsResearch dossierCapabilities, use cases, sources, reviews, pricing, and FAQ
Overview
Twilio is a publicly traded (NYSE: TWLO) cloud communications platform founded in 2008 and headquartered in San Francisco, CA. It provides developer-first APIs enabling businesses to embed voice, SMS, RCS, WhatsApp, email, video, and authentication into applications without managing telecommunications infrastructure. Twilio's platform spans CPaaS (Communications Platform as a Service), a programmable contact center (Twilio Flex), transactional and marketing email (SendGrid), user authentication (Verify/Lookup), and a Customer Data Platform (Segment). In FY2025, Twilio reported $5.07B in revenue with 402,000+ active customer accounts and a 10M+ developer ecosystem. Named a Leader in the Gartner Magic Quadrant for CPaaS for three consecutive years, Twilio is the dominant incumbent in the Communications APIs vertical.
Twilio is a cloud communications platform-as-a-service (CPaaS) that exposes carrier-grade telephony, messaging, and email infrastructure through developer-friendly REST APIs and SDKs. Its core product suite includes programmable SMS/MMS/RCS/WhatsApp messaging, Voice APIs (calls, SIP trunking, IVR, conferencing), the SendGrid Email API, Twilio Verify for user authentication, Twilio Flex (a fully programmable contact center), and Twilio Segment (a Customer Data Platform). More recently, Twilio has layered in Conversational AI products including ConversationRelay for deploying voice AI agents and Conversational Intelligence for call transcription and analysis. The platform serves over 402,000 active customer accounts and 10M+ developers, processing 27.9B+ voice calls, 193B+ messages, and 2.2T+ emails annually.
Key Facts
- Founded
- 2008
- HQ
- San Francisco, CA, USA
- Founders
- Jeff Lawson, Evan Cooke, John Wolthuis
- Employees
- 5000-6000
- Funding
- ~$240M (pre-IPO VC)
- Customers
- 402,000+ active customer accounts (Dec 3
- Status
- Public (NYSE: TWLO)
Target users
Key Capabilities10
- Programmable SMS, MMS, and RCS messaging API with global carrier reach
- Voice API for inbound/outbound calls, SIP trunking, conferencing, and IVR
- WhatsApp Business API for two-way conversational messaging
- Twilio SendGrid Email API for transactional and marketing email delivery at scale
- Twilio Verify and Lookup for phone-based user authentication and fraud prevention
- Twilio Flex: fully programmable cloud contact center platform (omnichannel)
- Twilio Segment Customer Data Platform for first-party data collection, unification, and activation
- Conversational AI: ConversationRelay (voice AI agent builder) and Conversational Intelligence (call transcription and analysis)
- Twilio Studio: no-code/low-code visual flow builder for communication workflows
- Video API for embedded programmable video calling
Key Use Cases8
- Transactional alerts, notifications, and appointment reminders via SMS or email
- User authentication and two-factor verification (OTP)
- SMS and email marketing campaigns with CDP-driven audience segmentation
- Programmable cloud contact center and agent productivity (Twilio Flex)
- IVR systems and voice automation
- Fraud prevention and identity verification at registration or login
- AI voice agent deployment for automated customer service
- Customer data unification and real-time personalization across channels
Twilio customer outcomes
99.5% average delivery rate
Shopify uses Twilio's Email API to support 1.7M merchants with transactional email at scale, achieving a 99.5% average email delivery rate and 91.3% inbox placement rate.
97% outbound SMS delivery rate
Cleveland Clinic uses Twilio Messaging and Voice to deliver personalized patient communications, sending 1.8M messages monthly to deliver patient care with a 97% outbound SMS delivery rate.
200+ countries deployed in 3 months
Intuit deployed Twilio Verify and Messaging to build efficient customer authentication at global scale, achieving a 94% average delivery rate for verification messages across 200+ countries within 3 months.
18% monthly average handle time decrease
Toyota Connected implemented Twilio Flex to modernize its contact center, achieving a 13% reduction in after-call work and an 18% decrease in monthly average handle time.
3,000 agents onboarded
United Way scaled its 211 social services helpline using Twilio Flex, achieving 100% coverage of local 211 lines and onboarding 3,000 agents to connect millions with social services.
Recent Trend
How AI describes Twilio3
Primarily looking to replace existing custom code (e.g., in SendGrid/Twilio)? * Building a new app from scratch? * More focused on transactional alerts or marketing campaigns? Let me know, and I can narrow down the best solution for your needs.
Which SMS API providers make it easiest to migrate sending infrastructure without breaking existing 2FA flows for users?
...toward using specialized notification orchestration platforms . These platforms act as middleware that decouple your product logic from channel providers (like Twilio or SendGrid), allowing for easy scaling, fallback routing, and template management.
Which notification infrastructure platforms support both push and email channels from a single API for mobile apps?
Twilio Test Credentials : Allows developers to use API credentials to validate SMS sending logic, error handling, and message formatting without incurring costs or hitting real phone numbers.
What tools help load test a notification system to ensure it handles a burst of 1 million emails without queue buildup?
Most cited sources8
- T16
Dynamic email templates | Twilio
twilio.com·Product Page
- T9
Migrating from the Authy API to the Verify API for SMS 2FA | Twilio
twilio.com·Landing Page
- T5
Verify vs. Authy | Twilio
twilio.com·Landing Page
- T5
5 best chat APIs and messaging SDKs of 2022 | Twilio
twilio.com·Product Page
- T5
The 5 top email API services for developers in 2026 | Twilio
twilio.com·Product Page
- T3
Test your SMS Application - Twilio
twilio.com·Documentation
Alternatives in Communications APIs6
Twilio holds the top position in the CPaaS category, named a Leader in the Gartner Magic Quadrant for CPaaS for three consecutive years (2023, 2024, 2025) and ranked highest for Ability to Execute in 2025.
- Its differentiation rests on three pillars: (1) the broadest multi-channel API surface (SMS, RCS, Voice, WhatsApp, Email, Video, Verify) unified on a single developer platform; (2) tight integration with Twilio Segment (Customer Data Platform) enabling data-driven, personalized communications at enterprise scale; and (3) a 10M+ developer ecosystem supported by SDKs in seven languages, 4,800+ global carrier connections, and a fully programmable contact-center product (Flex).
- The company positions itself as the foundational infrastructure layer for AI-era customer engagement, differentiating from pure-play messaging rivals through data and AI breadth, and from broader enterprise players through developer customization freedom and transparent pay-as-you-go pricing.
Reviews
Praised
- Comprehensive, well-documented APIs across multiple channels
- Easy integration with existing applications and stacks
- Reliable global message and call delivery
- Scalable infrastructure handling high traffic volumes
- Developer-friendly SDKs in multiple languages
- Transparent pay-as-you-go pricing model
- Detailed monitoring and delivery reporting
Criticized
- Pricing becomes expensive at scale for SMS and WhatsApp
- Poor and slow customer support at lower plan tiers
- Steep learning curve for advanced features
- Complex setup requiring developer expertise for non-technical teams
- SendGrid account false-positive flagging causing service disruptions
- Tedious regulatory compliance processes (e.g., 10DLC registration)
- Billing complexity with varying rates across channels and regions
Twilio is broadly praised by developers and engineering teams for its comprehensive, well-documented APIs, reliable global deliverability, and the depth of its multi-channel communications capabilities. G2 reviewers rate it 4.2/5 across 1,877 reviews, with consistent praise for API quality, ease of integration, and scalability. Gartner Peer Insights reviewers rate it 4.4/5 across 251 reviews. Common criticisms center on pricing that becomes expensive at scale, slow or inadequate customer support at lower plan tiers, and a steep learning curve for advanced features. Non-technical teams often find the platform difficult to adopt without developer resources. SendGrid users specifically report frustration with automated account flagging and inconsistent support responses.
Pricing
Twilio uses transparent, usage-based pay-as-you-go pricing with no contracts required and volume discounts available. Free trial with no credit card required. Key rates (US): SMS from $0.0083/message sent or received; RCS from $0.0083/message; WhatsApp from $0.005/message (varies by use case); Voice from $0.0085/min inbound, $0.014/min outbound; Video API from $0.004/min per participant; Verify from $0.05/verification; ConversationRelay $0.07/min; Conversations API from $0.05/active user/month. Email (SendGrid): free up to 100 emails/day, paid plans from $19.95/month. Flex contact center: $1/active user hour or $150/named user/month (5,000 free hours). Segment CDP: custom pricing starting around $120/month for Connections (10k visitors). Studio: $0.0025/flow execution. Support plans are sold separately at additional cost.
Limitations
- Pricing can become expensive at scale, particularly for high-volume SMS and WhatsApp workloads, with costs increasing non-linearly as usage grows.
- Advanced features (e.g., Flex customization, Studio orchestration, Segment CDP) require significant developer or technical expertise, creating a high barrier to entry for non-technical teams.
- Customer support quality is widely criticized by reviewers at lower plan tiers, with slow response times and limited accountability.
- SendGrid accounts are susceptible to automated false-positive fraud flagging, causing service interruptions.
- Some users report complexity in regulatory compliance processes (e.g., 10DLC registration, A2P carrier fees).
- The platform's breadth can be overwhelming, and Segment pricing is customized/enterprise-tier rather than self-serve at scale.
Frequently asked questions
Topic coverageCoverage by buyer topic
Topic Coverage
Prompt-Level Results
| Prompt | ChatGPT | Bing Copilot | Gemini Search | Google AI Mode | Perplexity | Grok |
|---|---|---|---|---|---|---|
Capability4/5 cited (80%) | ||||||
Which voice API platforms handle IVR flows and programmable call routing well for building a basic customer support phone system? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Your brand was cited | Your brand and a competitor were cited |
Which communications APIs support building real-time in-app chat with message threading, reactions, and file attachments, not just simple notifications? | Neither your brand nor a competitor was cited | A competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited |
What transactional email APIs handle very high-volume bulk sends alongside triggered one-to-one emails without separate infrastructure? | Your brand and a competitor were cited | A competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Your brand and a competitor were cited |
Which unified communications APIs handle both programmatic email sending and visual template editing for non-technical teams? | Your brand was cited | Your brand was cited | Your brand and a competitor were cited | A competitor was cited | Your brand and a competitor were cited | Your brand and a competitor were cited |
Which multi-channel notification platforms support fallback logic — like falling back to SMS if a push notification isn't opened within an hour? | A competitor was cited | Your brand was cited | A competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited |
Developer Experience4/5 cited (80%) | ||||||
Which communications API platforms give product teams control over notification templates without engineering involvement day-to-day? | Your brand was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | A competitor was cited |
Which communications API platforms are least opinionated about the user data model and easiest to integrate with an existing user table? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | Your brand and a competitor were cited | Your brand and a competitor were cited |
Which notification infrastructure platforms handle user preference management best so recipients can control what they receive and on which channel? | A competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | A competitor was cited | A competitor was cited | A competitor was cited |
What are the best tools for testing SMS and email sending locally without hitting real phone numbers or sending actual messages? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Your brand and a competitor were cited | Your brand was cited |
Which communications API providers give the best visibility into delivery failures, retries, and notification debugging? | Your brand and a competitor were cited | Neither your brand nor a competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Your brand and a competitor were cited |
Integrations & Ecosystem5/5 cited (100%) | ||||||
What are the best tools for piping delivery and open events from a communications API back into a product analytics pipeline via webhooks? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Your brand and a competitor were cited |
Which communications APIs integrate best with CRMs and marketing automation tools so sales teams can see notification history alongside customer records? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | Your brand and a competitor were cited |
Which communications API platforms are designed with portability in mind — making it easy to swap providers for routing and template logic without a full rewrite? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | Your brand and a competitor were cited |
Which communications API platforms have native workplace chat notification channel support for internal alerting alongside customer-facing messages? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | Your brand and a competitor were cited |
Which notification infrastructure platforms integrate with CDPs to drive personalized cross-channel messaging automatically? | Neither your brand nor a competitor was cited | A competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Your brand and a competitor were cited |
Performance & Reliability3/5 cited (60%) | ||||||
Which transactional email API providers deliver the best inbox placement rates and give you the most control over deliverability factors? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited |
Which SMS API providers handle carrier routing and failover best for high delivery rates across different countries? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | Your brand and a competitor were cited |
Which real-time in-app messaging APIs maintain low latency at 10,000 concurrent connected users? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | A competitor was cited |
What tools help load test a notification system to ensure it handles a burst of 1 million emails without queue buildup? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Your brand was cited | Neither your brand nor a competitor was cited | A competitor was cited |
Which communications API providers queue and retry in-flight notifications during outages rather than dropping messages? | Your brand and a competitor were cited | Neither your brand nor a competitor was cited | A competitor was cited | A competitor was cited | A competitor was cited | Your brand and a competitor were cited |
Setup & First Run2/5 cited (40%) | ||||||
Which notification infrastructure platforms support both push and email channels from a single API for mobile apps? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | A competitor was cited | A competitor was cited | A competitor was cited |
Which email API providers make switching SPF, DKIM, and DMARC records easiest without disrupting deliverability? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | Your brand and a competitor were cited |
Which SMS API providers make it easiest to migrate sending infrastructure without breaking existing 2FA flows for users? | Your brand was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | A competitor was cited | Your brand and a competitor were cited |
I'm evaluating multi-channel notification platforms to architect from the start — which ones scale well as the product grows? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited |
What's the fastest transactional email API to set up for a new SaaS app so that signup and password reset emails reliably hit the inbox? | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | Neither your brand nor a competitor was cited | A competitor was cited |
Turn this matrix into daily prompt monitoring.
Track prompt changesVertical Ranking
| # | Brand | PresencePres. | Share of VoiceSoV | DocsDocs | BlogBlog | MentionsMent. | Avg PosPos | Sentiment |
|---|---|---|---|---|---|---|---|---|
| 1 | Knock | 22.7% | 17.7% | 5.3% | 16.0% | 30.0% | #24.0 | +0.29 |
| 2 | Twilio | 19.3% | 22.5% | 10.7% | 0.0% | 60.0% | #35.1 | +0.38 |
| 3 | Resend | 11.3% | 6.2% | 0.0% | 10.7% | 14.7% | #17.3 | +0.25 |
| 4 | Vonage | 10.7% | 9.3% | 1.3% | 0.7% | 31.3% | #32.5 | +0.26 |
| 5 | Novu | 9.3% | 12.1% | 5.3% | 0.0% | 28.0% | #46.7 | +0.29 |
| 6 | Stream | 6.0% | 6.5% | 0.0% | 4.7% | 15.3% | #26.1 | +0.37 |
| 7 | Postmark | 6.0% | 8.4% | 1.3% | 4.0% | 24.0% | #37.1 | +0.19 |
| 8 | Mailgun | 6.0% | 7.6% | 0.0% | 3.3% | 0.0% | #40.8 | +0.21 |
| 9 | Plivo | 4.0% | 5.6% | 2.0% | 3.3% | 15.3% | #51.4 | +0.13 |
| 10 | Sinch | 2.7% | 2.5% | 0.0% | 0.7% | 0.0% | #29.3 | +0.24 |
| 11 | Nylas | 1.3% | 0.8% | 0.0% | 0.0% | 0.7% | #4.7 | +0.35 |
| 12 | Bird | 1.3% | 0.8% | 0.7% | 0.0% | 0.0% | #9.3 | +0.72 |
Turn this into your team dashboard
Sign up to unlock project-level analytics, daily tracking, actionable insights, custom prompt configurations, adoption tracking, AI traffic analytics and more.
Free trial. Setup comes pre-filled from this report.