SUPPORTED.TECH VS RETELL AI / REVIEWED SEPTEMBER 8, 2026
Supported.tech
vs Retell AI
Both platforms offer phone agents, website chat, and business connections. Compare the setup, included features, and call costs below.
WEBSITE CHAT / ASK ME
Start on your website
ASK ME connects website visitors to your products, orders, and business systems. No phone setup is required.
Explore costs $0 per month plus $0.040 per chat reply. Optional Guided Launch starts at $395.
Retell also supports website chat. Its widget can open chat directly or offer chat and voice.
VOICE COST CALCULATOR
Monthly call costs
Set your monthly minutes, then select the models, voices, and features. The totals update below.
One input updates both totals.
550 connected voice minutesCalls are billed by connected time; failed and unanswered calls are excluded.
GPT-5.6 is available exclusively on Supported+.
Included features
- ElevenLabs + available voices
- Knowledge base
- Advanced denoising
- Safety guardrails
- PII handling
- Agent Cycle review + outcome visibility
GPT-5.6 is not listed in Retell's current pricing selector.
Retell voice infrastructure is included at $0.055/min. Phone numbers, managed telephony and carrier charges are excluded from both totals. Retell's first 100 AI Quality Assurance minutes are free.
- Membership · 550 minutes
- $159.00
- 0 additional minutes
- $0.00
- Selected model
- GPT-5.6 Luna · included
- Plan features
- Included
- Voice infrastructure
- $0.055/min
- GPT-5.5 Fast
- $0.320/min
- ElevenLabs
- $0.040/min
- Knowledge + safeguards
- $0.025/min
- AI Quality Assurance
- $45.00
Different models are selected. This is a cost comparison.
Choose Supported+PRODUCT FEATURES
Compare the product features
Supported.tech supports setup and maintenance through your own GPT or Claude. Retell provides agent controls, integrations, and formal testing tools.
| Capability | Supported.tech | Retell AI |
|---|---|---|
| Voice pricing | Explore $0.25/min; Supported+ includes 550 minutes, then $0.19/min | Component-based, advertised range $0.07-$0.31/min |
| Model + voice pricing | Included within each plan's available choices | Rate changes by model and voice provider |
| Latest model access | Supported+ exclusively includes GPT-5.6 Luna and Terra. Explore includes GPT-5.5 Instant, GPT-5.4-mini, GPT-5.4 and GPT-5.3. | GPT-5.6 was not listed in the pricing selector reviewed on September 8, 2026 |
| AI chat | Explore $0.040 per AI reply; Supported+ $0.035 per AI reply | Model-based rates; GPT-5.5 is listed at $0.052 per AI message |
| Supported+ provides messages, templates, calls and campaigns at member PAYG rates | An unofficial connector is listed; it uses an automation platform | |
| Instagram + Facebook | Instagram DMs and Facebook Messenger are available with Supported+ | Not listed as native channels in the reviewed pricing documentation |
| SMS | Available; base estimate from $0.015/message | $0.01/message plus applicable service/carrier requirements |
| Knowledge bases | Included within account limits | +$0.005/min usage; subscription terms vary by agent type and current pricing table |
| Integrations | 262 listed connectors plus APIs, webhooks and MCP | APIs, webhooks and native integrations |
| Set up + maintain by chat | Set up agents, maintain integrations, repair automations and retest from your own GPT or Claude | Conductor builds and tests Retell agents inside Retell |
| Connected-system repair | Can inspect and repair tools and automations, then retest | Agent-focused build, test and version workflow |
| Simulation testing | Controlled real calls/messages; formal scenario suites are planned | Formal simulations, batches, evaluators and mocked tools |
| A/B testing | Not yet formalized | Production traffic splits and version analytics |
| Guided implementation | Optional Guided Launch from $395 | Dedicated implementation offered as an enterprise add-on |
SETUP AND MAINTENANCE
Setup and maintenance
Use your own GPT or Claude to update an agent, inspect a connection, and test the result. Your team controls system access.
- 01Challenge
- 02Observe
- 03Diagnose
- 04Change
- 05Retest
- 06Verify
SOURCES
Source references
Published by Supported.tech. Sources checked September 8, 2026. Prices in USD.
Official Retell pricing ↗ Official testing overview ↗ Official A/B testing guide ↗ See Supported.tech pricing →