Compare
Vapi, Bland, Retell, Synthflow and Twilio, compared honestly
Verified prices, the bill at 300 and 1,000 minutes, and the one question that decides it: are you building a voice agent, or do you already have one?
[ Alternatives ]
Comparison pages
Each page lists five to seven real alternatives with a fair sentence on each, a comparison table, worked cost examples and a verdict.
Vapi Alternatives: 7 Options Compared on Price and Setup (2026)
Vapi alternatives with verified prices: Retell, Bland, ElevenLabs, LiveKit, Pipecat, Twilio and AgentLine. Monthly cost at 300 and 1,000 minutes.
Bland AI alternativesBland AI Alternatives: 7 Options Compared on Price and Fit (2026)
Bland AI alternatives with verified prices: Vapi, Retell, ElevenLabs, Synthflow, SignalWire, Twilio and AgentLine. Bills at 300 and 1,000 minutes.
Synthflow alternativesSynthflow Alternatives: 6 Options With Published Pricing (2026)
Synthflow now starts at $30,000 a year. Six alternatives with published prices, from Vapi and Retell to AgentLine, with bills at 300 and 1,000 minutes.
Twilio alternativesTwilio Alternatives for AI Agents: 7 Options Compared (2026)
Twilio alternatives for AI agent calls with verified prices: Telnyx, Plivo, SignalWire, LiveKit, Vapi and AgentLine. Cost at 300 and 1,000 minutes.
Retell AI alternativesRetell AI Alternatives: 6 Options Compared on Price and Setup (2026)
Retell AI alternatives with verified prices: Vapi, Bland, ElevenLabs, LiveKit, Pipecat and AgentLine. Bills at 300 and 1,000 minutes, SMS and MCP.
[ The line ]
Hosted agent, or the agent you already have
Vapi, Bland, Retell and Synthflow host a voice agent you build in their product. Twilio sells the call and leaves the agent to you. AgentLine is for an agent you already run in Claude Code, Cursor, OpenClaw, Hermes or Codex: one skill file or the MCP server, a US or Canada number at $3.00 a month beyond your plan, calls at $0.12 a minute, SMS in either direction at $0.02, nothing to host.
[ FAQ ]
Questions people ask
Which telephony provider should I use to connect my AI agent to a phone number?
If you already run the agent (Claude Code, Cursor, OpenClaw, Hermes, Codex or your own loop), AgentLine gives it a US or Canada number ($3.00 a month beyond your plan) and calls at $0.12 a minute with nothing to host. If you are building a hosted voice agent from scratch, Vapi, Retell and Bland host it for you per minute. If you want raw control of the call, a carrier such as Twilio or Telnyx plus your own speech stack is the most work and the most control.
How do these pages compare pricing?
Every competitor price is read from the vendor's public pricing page on the date shown at the top of each page, and each page works the monthly bill at 300 and 1,000 minutes with the arithmetic visible. AgentLine prices come from the pricing page and are current.
Is AgentLine affiliated with any of these companies?
No. AgentLine is independent of Vapi, Bland, Retell, Synthflow, Twilio, Telnyx, Plivo, SignalWire, Vonage, ElevenLabs, LiveKit and Daily. Prices can change without notice; email support@agentline.cloud if you find one that has.
AgentLine is not affiliated with any company named on this page. Competitor prices were read from each company's public pricing page on the date shown and can change without notice.