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Tenable AI vs OpenAI Realtime API

A direct comparison using the real catalog fields currently available for both products.

Last updated July 24, 2026

Tool A

Tool B

Tenable AI

Tenable

OpenAI Realtime API

OpenAI

Overview

Rating

—

Tags

vulnerability-managementaisecurityenterpriseexposurescanning

voice-airealtimeapigpt-4oaudiodeveloper-tools

Pricing

Starting price

FreeBest value

Free

Pricing model

Subscription

Usage-based

Free plan

Free trial

✓

Pricing notes

Tenable Vulnerability Management cloud pricing from ~$7,000/year for 300 assets (estimate). Enterprise custom. 30-day free trial.

Pay-as-you-go. Audio input $0.06/min, audio output $0.24/min (as of 2025). Text within realtime sessions at standard GPT-4o rates. No free tier.

Capabilities

Best for

Vulnerability prioritisation by exploit riskCloud security postureAttack path to critical assetsCompliance scanningSecurity exposure management

Low-latency voice AI assistant developmentNatural conversational AI phone agentsReal-time audio AI processingVoice-powered AI agent developmentEmotional voice AI experiences

Target audience

Security engineersVulnerability management teamsCISOsIT security operationsCompliance teams

AI developersVoice application buildersStartup foundersEnterprise developersResearch teams

AI type

ML Platform

Conversational AI Agent

Modalities

DataText

AudioText

Technical

Model provider

TenableOpenAI

OpenAI

Model names

—

GPT-4o

API available

✓

Open source

Deployment

SaaSOn-premise

SaaSAPI

Platforms

WebAgentAPI

WebAPIWebSocket

Integrations

ServiceNowJiraSplunkQRadarSIEM platformsAPI

WebRTCVapiTwilioAPI

Team collaboration

✓

Trust & security

Security

SOC 2 Type II. ISO 27001. GDPR compliant. FedRAMP authorised. Enterprise security certifications.

Review OpenAI's data handling policy. Audio streams processed on OpenAI's infrastructure. Review Enterprise data handling terms for sensitive audio applications.

Privacy notes

Review Tenable's data handling policy. Vulnerability scan results and asset data processed on Tenable's infrastructure.

Audio data processed on OpenAI's servers. By default, audio is not used for training. Review OpenAI's API data handling policy for sensitive voice applications.

Verdict

Pros

Industry standard Nessus scanner with 40,000+ customers provides broad market validation
VPR AI prioritisation by exploit risk is more actionable than CVSS-only severity ranking
Exposure Graph attack path analysis identifies which vulnerabilities are actually exploitable to reach critical assets
FedRAMP authorisation for US government vulnerability management programmes

Native audio processing preserves emotional cues and prosody lost in STT-text-TTS pipelines
Sub-second latency enables natural conversational AI experiences matching human conversation speed
Same technology powering ChatGPT Advanced Voice Mode provides validated quality benchmark
Function calling in voice enables voice AI agents that complete tasks rather than only answering questions

Cons

30-day trial requires significant setup to evaluate properly in complex environments
Pricing scales significantly with asset count for large enterprises
Wiz and other cloud-native tools are capturing cloud vulnerability management market share

$0.24/min audio output pricing accumulates quickly for high-volume voice applications
WebSocket architecture requires different implementation approach than standard REST API calls
Limited to GPT-4o — no model flexibility for latency vs cost trade-offs

Tenable AI best for

Vulnerability prioritisation by exploit risk

Cloud security posture

Attack path to critical assets

Compliance scanning

Security exposure management

OpenAI Realtime API best for

Low-latency voice AI assistant development

Natural conversational AI phone agents

Real-time audio AI processing

Voice-powered AI agent development

Emotional voice AI experiences