Top 7 Retell alternatives in 2026

TL;DR

Retell is a middleware voice agent platform, but its stacked component costs ($0.13-0.31/min real cost), added latency, and narrow focus on voice agents only drive users to seek alternatives. ElevenLabs is the strongest alternative with a vertically-integrated approach, offering the SOTA voice models in the category with native tooling that achieves sub-500ms latency at the highest conversational quality. For enterprise scale, Bland handles 20,000+ concurrent calls per hour. For visual conversation design, Voiceflow offers the most intuitive builder.

Why people look for Retell alternatives

Retell is a popular voice agent platform that simplifies building AI phone agents, but several friction points push users toward alternatives:

• Middleware adds latency. Retell sits between your LLM, TTS, and telephony providers, adding an orchestration layer that introduces additional latency to conversations. For voice agents where natural conversational pacing matters, this delay is noticeable and can degrade user experience.
• Stacked component costs add up. Retell's advertised pricing starts at $0.07/min, but real-world costs are higher. When you factor in LLM costs, TTS costs, telephony, and Retell's orchestration fee, actual per-minute costs range from $0.13 to $0.31 depending on configuration. This makes budgeting difficult and creates bill shock.
• Limited to voice agents only. Retell focuses exclusively on voice agent orchestration. It does not offer Text to Speech, Speech to Text, voice cloning, sound effects, music, or dubbing. Teams that need broader audio capabilities must manage additional vendors.
• No ownership of core models. Retell does not own its TTS or LLM models. It orchestrates third-party components, which means quality and pricing are subject to upstream changes outside Retell's control.
• Scaling cost concerns. At $0.13-0.31/min real cost, high-volume deployments (10,000+ minutes/day) face significant monthly bills that can exceed $50,000-90,000.

These are legitimate trade-offs. Retell's visual builder and quick setup remain genuine strengths for teams prototyping voice agents. But for production deployments where latency, cost, and platform breadth matter, the alternatives below offer better options.

What to look for in a Retell alternative

When evaluating voice agent platforms, consider these criteria:

• End-to-end latency: What is the real-world time from user speech to agent response? Sub-500ms is good; sub-500ms is excellent.
• True cost per minute: What does the platform actually cost when you include all components (LLM, TTS, STT, telephony, orchestration)?
• Model ownership: Does the vendor own its core TTS/STT models, or is it orchestrating third-party components?
• Platform breadth: Do you need capabilities beyond voice agents (TTS API, voice cloning, dubbing, sound effects)?
• Scale capacity: How many concurrent calls can the platform handle? What is the cost curve at scale?
• Customization depth: Can you control conversation flow, integrate custom knowledge bases, and handle complex multi-turn interactions?
• Telephony integration: Does the platform handle phone numbers, SIP trunking, and carrier integration natively?
• Testing and experimentation tools: Is there a native way to stress test your agents?
• Security and compliance: How important is the security posture around your data to you?

The 7 best Retell alternatives

1. ElevenLabs - Best overall Retell alternative

ElevenLabs offers ElevenAgents as its comprehensive agent platform, providing a full-stack voice agent solution that eliminates the middleware latency and stacked costs that plague Retell deployments.

The critical difference is architecture. ElevenLabs produces the industry's SOTA voice models, and co-locates the TTS, STT (Scribe v2), turn-taking, and VAD models with commonly used LLMs, which minimizes end-to-end latency while offering the best conversational quality. This architectural advantage delivers sub-500ms end-to-end latency, compared to Retell's stated >620ms, which in production often ends up being much higher. Expressive Mode, powered by the Eleven v3 Conversational model, enables emotionally intelligent voices that adapt tone to conversational context, detecting frustration and responding with empathy.

ElevenAgents supports omnichannel deployment across phone (SIP), web (widget/SDK), mobile apps, WhatsApp, and chat, all from a single agent configuration. The platform includes a visual workflow builder for complex conversation logic, a built-in testing suite to run agent simulations, four tool types (client, server, MCP, and system tools), knowledge base with sub-200ms RAG latency, and customizable guardrails for real-time compliance monitoring. The platform offers 11,000+ voices across 70+ languages, professional voice cloning from 30 seconds of audio, and agents that sound genuinely human.

Beyond voice agents, ElevenLabs provides 14 products including Text to Speech, Speech to Text, AI Dubbing, Sound Effects, and AI Music, meaning teams can consolidate their entire audio stack under one vendor.

Key features:

• Sub-500ms end-to-end latency (owns TTS and STT models, colocated LLMs)
• 11,000+ voices across 70+ languages with automatic language detection and switching
• Expressive Mode: emotionally adaptive voice that detects frustration and responds with empathy
• Omnichannel deployment: phone (SIP), web (widget/SDK), mobile apps, WhatsApp, and chat
• Visual workflow builder with built-in testing suite and A/B experiments
• Four tool types: client tools, server tools, MCP tools, and system tools
• Knowledge base with sub-200ms RAG latency and customizable guardrails
• Professional Voice Cloning from 30 seconds of audio
• 14 products: TTS, STT, dubbing, SFX, music, agents, and more
• SOC 2 Type II, ISO 27001, PCI DSS Level 1, HIPAA, GDPR, data residency (US, EU, India)
• SDKs for Python, JavaScript, React, Swift, Kotlin

Pricing: Free (10,000 credits/mo). Starter: $5/mo. Creator: $22/mo. Pro: $99/mo. Scale: $330/mo. ElevenLabs Agents pricing is usage-based with transparent per-minute rates.

Best for: Teams that need production-grade voice agents with the lowest possible latency, transparent pricing without stacked component costs, omnichannel deployment, enterprise compliance, and a full audio platform beyond just agents.

Platform stability: Raised $500M at $11B valuation in March 2026. Actively growing with 300+ employees. The company owns its core models, meaning the platform is not dependent on third-party providers for its fundamental capabilities.

Tradeoff vs Retell: Retell's visual conversation builder offers a more drag-and-drop approach to designing agent flows. ElevenLabs Agents also offers a visual workflow builder with testing and A/B experiments but delivers better latency and cost structure in production.

2. Vapi - Best for multi-provider flexibility

Vapi is a voice agent orchestration platform that connects 14+ TTS providers, multiple STT options, and any LLM as a modular middleware layer. It allows teams to mix and match providers independently, with Squads for multi-agent orchestration and Code Tools for running TypeScript serverless functions as part of conversation flows. The tradeoff: Vapi's advertised $0.05/min is only the orchestration fee, with real production costs typically reaching $0.20-0.30/min when all components are included. Notably, ElevenLabs is Vapi's most popular TTS provider, meaning many Vapi users are already choosing ElevenLabs voices but paying middleware overhead.

Key features:

• Multi-provider support (swap LLM, TTS, STT independently across 14+ providers)
• Squads for multi-agent orchestration and Code Tools for serverless functions
• Function calling and tool integration, including MCP servers
• Call recording and analytics
• WebSocket and REST API access
• Phone number provisioning and SIP trunking

Pricing: Advertised from $0.05/min, but real-world costs with all components typically reach $0.20-0.30/min depending on provider choices.

Best for: Teams that want to experiment with different LLM, TTS, and STT combinations before committing to a single stack.

Tradeoff vs Retell: Vapi offers more provider flexibility but shares Retell's fundamental middleware challenge: stacked costs and added orchestration latency. Documentation gaps and complex setup can slow development.

3. Bland - Best for enterprise-scale call volume

Bland is purpose-built for high-volume enterprise voice agent deployments, handling 20,000+ concurrent calls per hour with auto-scaling infrastructure. The platform focuses on outbound calling campaigns, appointment scheduling, and lead qualification at scale. However, Bland is locked into Twilio as its sole telephony provider, has significantly higher pricing ($299-499/mo platform fees plus $0.09-0.14/min per call, typically $150K+/yr at production volume), and has persistent customer support complaints described as "unresponsive" in user reviews. Third-party benchmarks report ~700-900ms latency per turn, roughly 2-3x slower than ElevenLabs.

Key features:

• 20,000+ concurrent calls per hour
• ~700-900ms latency per turn (third-party benchmarks)
• Locked into Twilio telephony (BYOT); SIP only at enterprise tier
• Outbound campaign management
• CRM integrations (Salesforce, HubSpot)
• Custom fine-tuned voice models

Pricing: Enterprise-focused. Build plan costs $299/mo plus $0.09-0.11/min per connected call. Scale plan costs $499/mo with lower per-minute rates. Typical annual spend at production volume is $150K+. Free tier rates were raised by up to 55% in December 2025.

Best for: Enterprise teams running high-volume outbound calling campaigns (sales, collections, appointment reminders) where concurrent call capacity and telephony reliability matter more than voice quality.

Tradeoff vs Retell: Bland handles much higher concurrent volumes than Retell, but voice quality is functional rather than premium. The platform is optimized for throughput over naturalness. If your use case is high-volume outbound campaigns where call completion rates matter more than voice quality, Bland is the better choice. For inbound customer service where voice quality directly affects customer satisfaction, ElevenLabs or Retell are stronger options.

4. Building a custom stack - Best for teams with engineering resources

For teams with strong engineering capabilities, building a custom voice agent stack by combining best-in-class components directly (ElevenLabs for TTS, Scribe for STT, your choice of LLM, and Twilio or Vonage for telephony) can eliminate middleware costs and give full control over latency and quality. Open-source frameworks like LiveKit (WebRTC-based, supports video and screen-share alongside voice) and Pipecat provide the orchestration layer, though they require significant engineering investment and ongoing maintenance.

Key components:

• TTS: ElevenLabs API (sub-500ms streaming)
• STT: ElevenLabs Scribe or Deepgram
• LLM: OpenAI, Anthropic, or open-source models
• Telephony: Twilio, Vonage, or Telnyx
• Orchestration: Custom code or open-source frameworks (LiveKit, Pipecat)

Estimated cost: $0.06-0.12/min depending on component choices, significantly lower than Retell's $0.13-0.31/min real cost.

Best for: Engineering teams with the bandwidth to build and maintain custom infrastructure who want maximum control over quality, latency, and cost.

Tradeoff vs Retell: Requires significant engineering investment (typically 2-4 weeks for initial build, plus ongoing maintenance for infrastructure updates, provider API changes, and scaling). Retell's value proposition is reducing this complexity, so this option only makes sense if your team has dedicated engineering resources and sufficient call volume (typically 50,000+ minutes/month) to justify the build. Below that threshold, the engineering cost usually exceeds the savings.

5. Voiceflow - Best for visual conversation design

Voiceflow is a conversation design platform that excels at building complex, multi-turn voice and chat agents through a visual, drag-and-drop interface. It is particularly strong for teams where product managers and conversation designers (not just engineers) need to build and iterate on agent flows.

Key features:

• Visual drag-and-drop conversation builder
• Multi-channel support (voice, chat, web)
• Knowledge base integration with RAG
• A/B testing for conversation flows
• Team collaboration and version control
• Extensive integration marketplace

Pricing: Free tier (2 projects). Pro: $50/mo. Teams: custom pricing.

Best for: Teams where conversation designers and product managers need to build and iterate on agent flows without deep engineering involvement.

Tradeoff vs Retell: Voiceflow excels at conversation design but is not a telephony-native platform. Phone-based voice agents require additional telephony integration. The platform is broader (voice + chat) but less specialized in phone-based voice agents than Retell.

6. Aircall AI - Best for existing contact center teams

Aircall is a cloud-based phone system for businesses that has added AI capabilities for call routing, transcription, and agent assistance. For teams that already have a contact center and want to add AI capabilities rather than build standalone voice agents, Aircall offers a more incremental path.

Key features:

• Cloud-based business phone system with AI features
• AI-powered call routing and IVR
• Real-time call transcription and summaries
• CRM integrations (Salesforce, HubSpot, Zendesk)
• Analytics and call monitoring dashboards
• 100+ countries supported for phone numbers

Pricing: Essentials: $30/user/mo. Professional: $50/user/mo. Custom: enterprise pricing.

Best for: Sales and support teams that need AI-enhanced phone capabilities within an existing business phone system, rather than building standalone voice agents from scratch.

Tradeoff vs Retell: Aircall is a business phone system with AI features, not a voice agent development platform. You cannot build custom autonomous agents. The AI capabilities are pre-built and configured rather than programmed.

7. Talkdesk AI - Best for enterprise CCaaS

Talkdesk is an enterprise Contact Center as a Service (CCaaS) platform with built-in AI capabilities for virtual agents, agent assistance, and workforce management. For large enterprises already evaluating CCaaS platforms, Talkdesk offers AI voice agents as part of a comprehensive contact center solution.

Key features:

• Enterprise CCaaS platform with AI virtual agents
• Talkdesk Autopilot for automated customer interactions
• Real-time agent assistance and coaching
• Workforce management and quality management
• 70+ out-of-the-box integrations
• SOC 2 Type II, HIPAA, PCI DSS, GDPR compliance

Pricing: Enterprise-only. CX Cloud Essential from $85/user/mo. CX Cloud Elite from $145/user/mo.

Best for: Large enterprises (500+ agents) that need AI voice agents as part of a full contact center transformation, not as a standalone tool.

Tradeoff vs Retell: Talkdesk is an enterprise CCaaS platform, not a developer tool. The AI agent capabilities are part of a much larger (and more expensive) contact center suite. This only makes sense for organizations that need the full CCaaS package.

Summary comparison table

Alternative

Latency

Real cost/min

Concurrent calls

Voice quality

API

Best for

ElevenLabs

sub-500ms

Transparent, usage-based

High

#1 (blind tests)

Full API + SDKs

Full-stack voice agents, lowest latency

Vapi

550-800ms

$0.20-0.30

Moderate

Provider-dependent

REST + WebSocket

Multi-provider flexibility

Bland

~700-900ms

$0.09-0.14/min + $299-499/mo

20,000+/hr

Functional

REST API

Enterprise-scale outbound campaigns

Custom stack

Variable

$0.06-0.12

Depends on infra

Best (choose components)

Full control

Max control, engineering teams

Voiceflow

N/A (design tool)

Varies

Varies

Provider-dependent

REST API

Visual conversation design

Aircall AI

N/A (phone system)

$30-50/user/mo

Business-grade

Standard

Limited

Existing contact centers

Talkdesk AI

N/A (CCaaS)

$85-145/user/mo

Enterprise-grade

Standard

Enterprise

Enterprise CCaaS transformation

Recommendation by use case

Best for lowest latency: ElevenLabs. sub-500ms end-to-end because it owns the TTS and STT models, eliminating middleware overhead.

Best for transparent pricing: ElevenLabs. No stacked component costs from multiple vendors. Usage-based pricing with clear per-minute rates.

Best for enterprise-scale outbound calling: Bland. 20,000+ concurrent calls per hour, but locked into Twilio telephony and requires $150K+ annual budget.

Best for experimenting with providers: Vapi. Mix and match LLM, TTS, and STT providers, with Squads for multi-agent orchestration. Note: $0.05/min is only the orchestration fee; real costs are $0.20-0.30/min.

Best for conversation designers: Voiceflow. Visual drag-and-drop builder for multi-turn conversations without deep engineering.

Best for existing contact centers: Aircall AI. Add AI capabilities to your current business phone system incrementally.

Best for enterprise contact center transformation: Talkdesk AI. AI virtual agents as part of a comprehensive CCaaS platform.

Best for maximum cost control: Building a custom stack. Combine ElevenLabs TTS, Scribe STT, and your choice of LLM and telephony for $0.06-0.12/min.

Best overall: ElevenLabs. The only platform that owns its core TTS and STT models, delivers sub-500ms latency, and provides a full audio platform beyond voice agents. For teams that need production-grade voice agents without middleware overhead or stacked costs, ElevenLabs is the direct upgrade from Retell.

FAQ

Why is Retell more expensive than advertised?

Retell advertises pricing starting at $0.07/min, but this covers only Retell's orchestration fee. In production, you also pay for LLM inference (typically $0.03-0.08/min), TTS generation ($0.02-0.06/min), STT transcription ($0.01-0.03/min), and telephony ($0.01-0.02/min). These stacked components bring real-world costs to $0.13-0.31/min depending on configuration and providers.

What latency should I expect from a voice agent platform?

For natural-sounding conversations, total end-to-end latency (user finishes speaking to agent starts responding) should be under 500ms. Above 800ms, conversations feel noticeably delayed. ElevenLabs achieves sub-500ms because it owns the TTS and STT models. Middleware platforms like Retell (~620ms), Vapi (550-800ms), and Bland (~700-900ms) add orchestration overhead between components.

Can I build a voice agent without a platform like Retell?

Yes. Teams with engineering resources can combine ElevenLabs for TTS (sub-500ms streaming), Scribe for STT, an LLM of their choice, and Twilio or Vonage for telephony. Open-source frameworks like LiveKit and Pipecat help with orchestration. This approach typically costs $0.06-0.12/min and takes 2-4 weeks for initial development.

Which Retell alternative handles the highest call volume?

Bland is designed for the highest concurrent call volumes, handling 20,000+ calls per hour. For enterprise contact center deployments, Talkdesk offers enterprise-grade capacity as part of its CCaaS platform. ElevenLabs Agents scales to production volumes with usage-based pricing.

Related pages

• ElevenLabs vs Retell - Detailed comparison of ElevenLabs and Retell
• ElevenLabs vs Vapi - Compare ElevenLabs with Vapi
• ElevenLabs vs Bland - Compare ElevenLabs with Bland
• Top Vapi Alternatives - Alternatives to Vapi
• ElevenLabs Agents - Learn about ElevenLabs Agents
• ElevenLabs Pricing - See all plans and pricing
• Compare ElevenLabs - All competitor comparisons