Retell AI vs Shortwave: 2026 comparison
Production voice agent platform — LLM-native phone agents with low-latency streaming and per-minute pricing.
AI email client — natural-language search, summary, scheduled send, and AI-drafted replies grounded in your inbox.
Retell AI vs Shortwave — specs
| Spec | Retell AI | Shortwave |
|---|---|---|
| Agent Rank | 72 / 100 (A) | 72 / 100 (A) |
| Autonomy | Autonomous | Assistant |
| Pricing | Pay per task · Free tier | Freemium · from $9 |
| Open source | No | No |
| Capabilities | Voice, Tool use, Memory | RAG, Memory, Tool use |
| Integrations | 3 apps | 3 apps |
| Verified | Verified | Verified |
| Released | Mar 2025 | Feb 2025 |
Agent Rank breakdown
- Autonomy fit
- 9
- Capabilities
- 6
- Integrations
- 4
- Pricing value
- 9
- Polish & maturity
- 5
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
- Autonomy fit
- 7
- Capabilities
- 6
- Integrations
- 6
- Pricing value
- 8
- Polish & maturity
- 6
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Pros & cons
- +Lowest per-minute pricing among production voice agent platforms
- +Strong streaming latency (~300ms) competitive with ElevenLabs
- +Per-minute pricing easier to forecast than per-seat
- −Less polished out-of-the-box than Synthflow for non-technical buyers
- −Documentation and tooling still maturing vs ElevenLabs
- −Voice quality varies by model selection
- +Best AI-native email client in 2026 — search, summarize, draft all natural-language
- +Built specifically for Gmail; faster + smarter than Gmail itself
- +Cheap relative to Superhuman with better AI features
- −Gmail-only — no Outlook support
- −AI assistant is helpful but not yet revolutionary
- −Smaller user base means fewer integrations than Gmail/Outlook ecosystems
Pricing
- +~$0.07/min
- +Production-ready API
- +Volume discounts
- +Dedicated infrastructure
- +Custom models
- +Basic AI summary
- +90-day search
- +Unlimited search
- +AI assistant
- +Scheduled send
- +Shared inboxes
- +Send delegation
- +Admin controls
Which one should you pick?
Pick Retell AI if cost is the main constraint or if you want the highest autonomy and the verification loop is in place.
Try Retell AI →Pick Shortwave if its specific capabilities (RAG, Memory) match what you need.
Try Shortwave →Affiliate links. We may earn a commission at no extra cost to you.
Frequently asked
Should I pick Retell AI or Shortwave in 2026?+
Pick Retell AI if cost is the main constraint or if you want the highest autonomy and the verification loop is in place. Pick Shortwave if its specific capabilities (RAG, Memory) match what you need. Most working teams running both can use Retell AI for primary work and Shortwave for the workflows where its specific strengths matter.
What's the price difference between Retell AI and Shortwave?+
Retell AI starts at Pay per task · Free tier; Shortwave starts at Freemium · from $9. Retell AI is the cheaper entry option. For team deployments the TCO can differ — use the AI Agent Rank TCO calculator for your specific volume.
Which is more autonomous, Retell AI or Shortwave?+
Retell AI is the more autonomous of the two (Autonomous vs Assistant). Higher autonomy ships throughput faster but requires verification loops in place — see our autonomous-vs-copilot framing for when each tier wins.