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SMS / text messaging
I need to send SMS text messages (verification codes, alerts) from my app. Which SMS API should I use? Give your ranked top 3.
Top pick by run
| Model | Jul 3, 2026 |
|---|---|
| Claude Fable 5 | |
| Claude Opus 4.8 | |
| Claude Sonnet 4.6 | |
| Claude Haiku 4.5 | |
| GPT-5.5 |
Each column is one run. Click a pick to see that model's full ranking and reasoning. Green marks a change from the previous run.
Claude Fable 5
Jul 3, 2026- 1TwilioIndustry-standard SMS API with the best documentation, SDKs in every major language, and a dedicated Verify API purpose-built for OTP verification codes.
- 2Vonage (Nexmo)Strong global carrier reach and competitive pricing with a Verify API for one-time codes, making it a solid Twilio alternative especially for international delivery.
- 3AWS SNS (Simple Notification Service)Cheap, highly scalable SMS delivery that integrates seamlessly if your app already runs on AWS, though it lacks a built-in verification flow.