Plivo vs Telnyx
Compare Plivo and Telnyx based on observed SMS API performance, features, and pricing
Live performance comparison
Real-world performance data from messages sent through Knock
We don't have enough message volume through Knock for Plivo to publish statistically meaningful benchmarks yet. The data below reflects Telnyx only. Comparison charts will appear once both providers have sufficient data.
| Provider | Message volume | Growth | Status page updates (30d) | Status page updates (90d) |
|---|---|---|---|---|
| — | — | 5 | 12 |
| <1M | 3rd of 7 → | 51 | 140 |
From March 26th to June 24th, Knock routed <1M messages through Telnyx. Telnyx reported 140 status page updates over the last 90 days, while Plivo reported 12.
Response time
Response time measures how long each provider takes to accept an SMS API request from Knock, including connection overhead and any automatic retries. Lower values mean faster message hand-off.
Telnyx has a median response time (p50) of 275ms, a p90 of 387ms, and a p99 of 686ms from March 26th to June 24th. Comparison charts for Plivo will appear once enough data is available.
Error rate
Error rate tracks the ratio of 5xx responses and timeouts to total SMS API requests. Knock automatically retries failed requests, so transient provider errors rarely affect end-user delivery.
| Provider | Avg. daily error rate | Highest daily rate | Peak error date | Zero-error days | Days above 0.01% |
|---|---|---|---|---|---|
| — | — | — | — | — |
| 0.03% | 0.32% | May 28 | 37 | 32 |
Averaged across March 26th to June 24th, Telnyx shows a 0.03% daily error rate. Comparison data for Plivo will appear once enough message volume is available. Knock automatically retries failed requests to minimize the impact of transient errors on end-user delivery.
About these metrics: Data represents messages sent through Knock during the specified period. Response time measures time from Knock to provider acceptance. Error rate includes only provider 5xx responses and timeouts.
Recent Plivo incidents
Recent status page incidents for Plivo
Started Jun 19, 2026 — Resolved Jun 19, 2026
Jun 19, 13:57 UTC Resolved - This incident has been resolved. Jun 19, 13:27 UTC Monitoring - A fix has been implemented and we are monitoring the results. Jun 19, 13:01 UTC Investigating - Dear Valued Customer, We are experiencing call failures in the India and US region.
Started Jun 15, 2026 — Resolved Jun 15, 2026
Jun 15, 06:00 UTC Resolved - Dear Valued Customer, We recently experienced call failures in the India region for the 911600 series numbers. After initial investigation, our carrier partner was notified, who took corrective action and the incident was resolved Incident Start Time: 15th June 2026, 11:15 IST Incident End Time: 15th June 2026, 11:45 IST If you have any questions or concerns regarding this incident, please contact Plivo Support. Support portal: https://support.plivo.com/hc/en-us
Started Jun 12, 2026 — Resolved Jun 12, 2026
Jun 12, 17:21 UTC Resolved - This incident has been resolved. Jun 12, 16:30 UTC Monitoring - Dear Valued Customer, We are aware of elevated error rates and message delays affecting WhatsApp messaging on the Plivo platform. This is caused by an ongoing disruption with WhatsApp's Cloud API, part of a broad Meta platform outage currently affecting multiple Meta services. The issue originates upstream at Meta and is not specific to Plivo's infrastructure. Impact: Messages sent to or received f
Started Jun 12, 2026 — Resolved Jun 12, 2026
Jun 12, 09:13 UTC Resolved - This incident has been resolved. Jun 12, 05:21 UTC Investigating - Dear Valued Customer, We are observing intermittent outbound call failures in the India region. Calls from specific series of 9180 Caller IDs are impacted. All other services are operating normally. We are working with our carrier partner to resolve this
Started Jun 6, 2026 — Resolved Jun 6, 2026
Jun 6, 13:00 UTC Resolved - Incident Summary — Elevated Call Failure Rate on 9180 Number Series. Specific number series of 9180 were impacted for outbound calls. Incident Window: 5th June 2026, 6:30 PM IST — 6th June 11:30 AM IST Impact: Outbound calls to the 9180 number series were affected throughout the incident window. The failure rate reached approximately 34% at peak. Other number series and carrier paths were unaffected. The issue appeared to partially ease during low-traffic overnig
Recent Telnyx incidents
Recent status page incidents for Telnyx
Started Jun 24, 2026 — Resolved Jun 24, 2026
Status: Complete Maintenance has completed Affected components Amsterdam, Netherlands (Under maintenance) Frankfurt, Germany (Under maintenance) Dubai, UAE (Under maintenance) San Jose, CA (Under maintenance) Chicago, IL (Under maintenance) Chennai, India (Under maintenance) Sydney, Australia (Under maintenance) Toronto, Canada (Under maintenance) Ashburn, VA (Under maintenance) London, UK (Under maintenance)
Started Jun 24, 2026 — Resolved Jun 24, 2026
Status: Complete Maintenance has completed Affected components US (Under maintenance) Europe (Under maintenance)
Started Jun 24, 2026 — Resolved Jun 24, 2026
Status: Complete Maintenance has completed Affected components Programmable Wireless (Under maintenance)
Ongoing since Jun 24, 2026
Status: Identified Subscribers Roaming on IMSI1 in Sydney will be experiencing data connectivity issues. Issue has been identified and we're working on resolving it in a timely manner. Affected components Programmable Wireless (Partial outage)
Ongoing since Jun 23, 2026
Status: Investigating Investigating Affected components Chennai, India (Degraded performance)
Pricing comparison
| Provider | Plan | Per message | Monthly cost |
|---|---|---|---|
| Plivo | Pay-as-you-go | $0.0077 | $770 |
| Telnyx | Pay-as-you-go | $0.004 | $400 |
Plivo
Pay-as-you-go with no minimums or monthly fees. US outbound SMS costs $0.0077 per message. Inbound messages are $0.0055 each. Volume discounts available for high monthly usage. Carrier surcharges apply on top of the base rate.
Telnyx
No free tier. Outbound SMS to US numbers costs $0.004 per message. Inbound messages are $0.004 each. Phone numbers start at $1.00/month for local numbers. Carrier surcharges are passed through at cost with no markup.
US carrier surcharges
All US A2P SMS sent via 10DLC incurs mandatory carrier fees on top of the provider base rate. Most providers pass these through at cost.
| Carrier | Outbound SMS | Inbound SMS |
|---|---|---|
| T-Mobile | $0.0045 | $0.0025 |
| AT&T | $0.003 | $0.003 |
| Verizon | $0.004 | $0.00 |
| US Cellular | $0.005 | $0.00 |
Pros and cons
Plivo
Telnyx
Pros
- Among the lowest per-message rates with automatic volume discounts
- Familiar API design modeled after Twilio, making migration straightforward
- 99.99% uptime SLA with direct carrier connections to 190+ countries
- Free inbound messages and no monthly minimums or base fees
Pros
- Among the lowest per-message rates for US domestic SMS
- Private IP network provides lower latency than providers using the public internet
- Transparent, pay-as-you-go pricing with no monthly minimums
- Strong developer experience with well-documented APIs and SDKs
Cons
- Narrower feature set with no native support for WhatsApp or other messaging channels
- Smaller community and fewer third-party tutorials compared to Twilio
- Web dashboard is functional but not polished for managing large number inventories
Cons
- Smaller community and ecosystem compared to Twilio
- No free trial credits for new accounts
- Feature set is narrower than full-suite platforms like Twilio
Frequently asked questions
What is the difference between Plivo and Telnyx?
Plivo is a cost-effective communications platform with direct carrier connections, a Twilio-compatible API design, and a 99.99% uptime SLA. Telnyx is a developer-first communications platform with competitive pricing and a private IP network for reliable SMS delivery. Plivo is best suited for cost-effective high-volume sms, while Telnyx is geared toward cost-effective developer sms.
Which is cheaper, Plivo or Telnyx?
Pay-as-you-go with no minimums or monthly fees. US outbound SMS costs $0.0077 per message. Inbound messages are $0.0055 each. Volume discounts available for high monthly usage. Carrier surcharges apply on top of the base rate. No free tier. Outbound SMS to US numbers costs $0.004 per message. Inbound messages are $0.004 each. Phone numbers start at $1.00/month for local numbers. Carrier surcharges are passed through at cost with no markup. The best value depends on your sending volume and destination countries.
Which is faster, Plivo or Telnyx?
Based on real-world data from Knock, Telnyx has a median SMS API response time (p50) of 275ms. We don't yet have enough data for Plivo to make a direct comparison.
Which is more reliable, Plivo or Telnyx?
From March 26th to June 24th, Telnyx showed an error rate of 0.03%. We don't yet have enough data for Plivo to compare reliability directly. Knock automatically retries failed requests to minimize the impact of transient errors.
Which is more popular, Plivo or Telnyx?
On the Knock platform, Telnyx handled <1M messages from March 26th to June 24th. Telnyx volume has remained stable. We don't yet have enough data for Plivo to compare popularity.
Can I use both Plivo and Telnyx together?
Yes. Knock enables you to integrate multiple SMS providers into a single notification workflow. You can use Plivo and Telnyx side by side, route traffic between them, or migrate from one to the other without changing your application code.
What are the main pros and cons of Plivo vs Telnyx?
Plivo strengths include among the lowest per-message rates with automatic volume discounts and familiar api design modeled after twilio, making migration straightforward. Telnyx strengths include among the lowest per-message rates for us domestic sms and private ip network provides lower latency than providers using the public internet. On the other hand, Plivo drawbacks include narrower feature set with no native support for whatsapp or other messaging channels, while Telnyx drawbacks include smaller community and ecosystem compared to twilio.
Use either provider with Knock
Knock enables you to integrate Plivo, Telnyx, or any combination of SMS providers into a single notification workflow. Manage templates, orchestrate cross-channel delivery, and switch providers without changing your code.