Vapi is a developer-first platform for building voice agents with maximum flexibility. GRX10 is a business-ready revenue engine (voice, WhatsApp, CRM and automated follow-up) that you can run yourself or have operated for you.
100 free minutes · no card · updated Oct 2026 · GRX10 team
Choose Vapi if you have developers who want fine-grained control to build a custom voice pipeline. Choose GRX10 if you want to launch quickly and get outcomes (calls made, booked and written to a CRM, then followed up automatically) without assembling the stack, and want the option to have it run for you.
| GRX10 | Vapi | |
|---|---|---|
| What it is | A revenue engine (Voice AI + WhatsApp + CRM + Nudge), sold or operated | A developer platform for building voice AI agents |
| Best for | Businesses that want outcomes fast | Developers building a custom pipeline |
| Setup | One-sentence agent, test call the same day | Build against the API / SDK |
| Scope | Voice + WhatsApp + CRM + follow-up | Voice agents |
| Languages | All languages* at one rate, Hinglish included | Broad, developer-configured |
| Managed option | Yes | Self-serve |
| Pricing | Per-minute platform + telco at cost | Per-minute, usage-based |
If you have an engineering team that wants total control over models, providers and the call pipeline, and you are building a bespoke voice product rather than running revenue campaigns, a developer-first platform like Vapi gives you more low-level flexibility. GRX10 trades some of that flexibility for speed and business outcomes.
Vapi charges a $0.05 per minute hosting fee, with transcription, model and voice passed through at provider cost and telephony from your carrier, on vapi.ai/pricing (as of 17 October 2026). GRX10 Voice AI is $0.119 (₹7.99) per minute plus telephony at carrier cost, billed per minute and rounded up to the next full minute, with every component included.
Vapi is an API you build an agent on. GRX10 is a ready agent: describe the job, review the script and voice, go live, or have the GRX10 team run it.
GRX10 runs one speech-to-speech model that follows callers who switch between Hindi and English mid-sentence and covers all languages*.
GRX10 includes MicroCRM and Nudge. On Vapi you assemble the CRM, follow-up and telephony yourself.
Describe your agent in one sentence and take a test call on your own phone. First 100 minutes free, no card.
Start freeOur team designs, runs and tunes the campaigns for you. You watch the leads land.
*All major languages.
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