Cactus vs Northbeams

Cactus and Northbeams are both inference engines & infra tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

Cactus

Open-source inference engine for deploying AI models locally on mobile and edge devices with automatic cloud fallback.

Northbeams

Northbeams sits between your workforce and their AI tools, classifying what's running, blocking what shouldn't be, and generating the evidence chain your SOC 2 or HIPAA auditor will ask for. The browser-based agent installs without network changes, so IT doesn't need a procurement cycle to get visibility. Discovery is ungated, which means you can map your shadow AI footprint before committing to enforcement. The ceiling appears when your environment scales past a single site or when you need MCP agent governance — those capabilities are paid-only features. Teams running large multi-site deployments report that per-seat policy management becomes the operational bottleneck.

Attribute	Cactus	Northbeams
Pricing	Paid	Paid
Price	Free tier; paid hybrid inference and NPU acceleration features	$9,600/yr
Free trial	No	14 days
Open source	No	No
Has API	Yes	Yes
Self-hosted option	Yes	No
Platforms	iOS, Android, macOS, wearables (smartwatches, AR glasses); Linux, macOS, Windows (CLI)	Browser (Chrome, Edge, Brave, Arc), Mac, Windows, CLI
Languages	Multi-language via Qwen3 and open models; transcription supports all audio languages	—
Released	2025	—
Pros	Sub-150ms on-device latency without GPU dependency 5x cost savings vs. pure cloud inference through intelligent hybrid routing Cross-platform single SDK (iOS, Android, macOS, wearables) Privacy-by-default with optional offline-only mode and zero data retention Automatic confidence-based cloud fallback requires no app-level code changes	Agent deploys without network changes or procurement approval, so a security team can have full shadow AI inventory running in hours rather than after a six-week firewall project. Real-time PII, credential, and source-code interception fires before data leaves the browser, which means you catch the leak before it becomes a breach notification obligation. Automated generation of SOC 2, HIPAA, and EU AI Act audit evidence means compliance reviews don't require a two-week manual log reconstruction before every auditor call. Per-tool allow/block/sandbox policies for MCP agent access, so engineering teams using Cursor or Claude Desktop don't operate in a governance blind spot while the rest of the org is covered. Discovery tier is ungated, which means you can produce a complete AI tool inventory and make the business case for enforcement before spending a dollar — removing the 'prove it first' blocker most security budgets impose.
Cons	Limited to smaller, optimized models; frontier models require cloud fallback Proprietary .cact format ties optimization benefits to Cactus ecosystem Paid tiers required for production hybrid inference and NPU acceleration	Browser-agent coverage means any AI workload running outside the browser — CLI tools, server-side agents, API integrations — is invisible to Northbeams; teams with significant non-browser AI usage will maintain a separate inventory for those surfaces and live with two parallel governance systems. MCP agent governance and Fleet (multi-site policy management) are paid-only features, so organizations that deploy on the free tier and then discover their primary risk is in coding agents or distributed sites face a forced upgrade decision mid-rollout rather than before it. Teams that outgrow per-tool policy management at scale — typically when seat counts push into the hundreds across multiple locations — report that policy administration becomes a recurring manual burden; at that inflection point, organizations with dedicated security engineering staff typically migrate to a network-layer DLP or CASB that handles enforcement at the infrastructure level rather than the browser.

Bottom line

Cactus and Northbeams are closely matched on pricing model, openness, and API availability — pick by feature set and platform support in the table above.

Frequently asked questions

What is the difference between Cactus and Northbeams?

Cactus is Paid, while Northbeams is Paid. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is Cactus better than Northbeams?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.