Excession Labs vs ThunderPhone

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Excession Labs compared with ThunderPhone
Detail	Excession Labs	ThunderPhone
What it does	AI security agent and hosted model API for authorized testing	AI phone agents with integrated audio understanding, model routing, and voice optimization
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Not given	Paid
Pricing	Starter $20/month with $30 credit; Pro $100/month with $175 credit; Max $200/month with $400 credit; Ultra $500/month with $1,250 credit. Pay as you go: add funds from $10 to $1,000, balance never expires. DeepSeek V4.1 Flash: $0.035 input, $0.005 cached input, $0.50 output per 1M tokens. DeepSeek V	Cost-plus pricing: customers pay vendor list prices for models and voice plus hosting (15% of vendor costs, 0.5¢ to 2¢ per minute) plus company margin (17-25%). Lean calls cost from 2.0¢/min (1.18¢ vendors + 0.50¢ hosting + 0.35¢ margin). Receptionist calls cost 4.7¢/min (3.36¢ vendors + 0.50¢ hosti
Key features	Terminal AI agent with parallel workers Per-tool allow, deny and ask rules Evidence-linked findings with severity and remediation steps OpenAI and Anthropic SDK-compatible API endpoints Session save, resume, fork and export Headless mode with JSONL output and exit codes for CI Support for MCP servers, skills, AGENTS.md, slash commands and hooks DeepSeek V4.1 Flash and abliterated variant models Cross-platform support for macOS, Linux and Windows Shared account balance between terminal agent and API	Multi-model architecture running multiple transcription and language models per call Zeus AI agent that builds, tests and tunes voice agents automatically Simulated call testing before live deployment Live call monitoring and observability A/B testing and automated fix suggestions Integration wizard for CRM, VoIP and business software Client portals for managing multiple agents Knowledge base integration for agent grounding Outbound campaigns with CSV upload and scheduling
What makes it different	Unified billing for both terminal agent and hosted API API compatible with OpenAI and Anthropic SDKs Evidence-based findings with source lines and reproduction steps Terminal agent with configurable tool rules and headless CI mode	Cost-plus pricing with no margin markup pass-through when vendor prices drop Fully agentic Zeus AI that handles entire lifecycle from creation to optimization Multi-model architecture for superior audio understanding vs 3-step pipelines Starts at 2¢/min, cheaper than competitors and call center labor
Community votes	0	0
DR (Domain Rating by Ahrefs)	15 −1 (down) since last check	43 +1 (up) since last check
Trust Flow (Majestic)	0	5
Citation Flow (Majestic)	0	35
Referring domains (Majestic)	0	161

4 details filled in for both companies.

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