BuildPlane vs Excession Labs

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

BuildPlane compared with Excession Labs
Detail	BuildPlane	Excession Labs
What it does	AI Agent that turns plain-English prompts into production-ready, editable AWS architecture diagrams	AI security agent and hosted model API for authorized testing
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Not given
Pricing	Free: $0/month with 10 AI Agent actions per month, unlimited manual diagram editing, and watermarked exports. Pro: $29/month with 1,000 AI Agent actions per month and clean exports without watermark.	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
Key features	Generate AWS architecture diagrams from natural-language prompts Edit diagrams on a visual canvas with containers, boundaries, and connectors Validated, production-ready AWS architecture graphs Save, load, and assess cloud architecture projects AI Agent to refine, explain, and evolve architecture Unlimited manual diagram editing on free plan Full-quality diagram exports Pre-generated diagram templates	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
What makes it different	Turn plain English descriptions directly into production-ready AWS architecture diagrams without manual drawing AI Agent assistance to refine and explain generated architectures Validated AWS architecture that is production-ready Unlimited manual editing and full-quality exports on free plan	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
Community votes	0	0
DR (Domain Rating by Ahrefs)	11 +1 (up) since last check	15 −1 (down) since last check
Trust Flow (Majestic)	2	0
Citation Flow (Majestic)	22	0
Referring domains (Majestic)	20	0

4 details filled in for both companies.

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