Both tools belong to the same emerging category — Generative Engine Optimization (GEO) — but they ship very different products. Below is a feature-by-feature comparison as of May 2026.
AI assistant coverage
An AI visibility tool is only as good as the LLMs it actually probes. If a tool only checks ChatGPT, you have no signal for users on Claude Mobile, Gemini Pro, Perplexity, Grok, or Google AI Overviews.
| AI platform | Arenza Protect | Arenza Pro | Ahrefs AI Search |
|---|---|---|---|
| ChatGPT (OpenAI) | ✓ | ✓ | ✓ |
| Claude (Anthropic) | ✓ | ✗ | ✗ |
| Gemini (Google) | ✓ | ✗ | ✗ |
| Perplexity | ✓ | ✗ | ✗ |
| Grok (xAI) | ✓ | ✗ | ✗ |
| Copilot (Microsoft) | ✓ | ✗ | ✗ |
| Meta AI | ✓ | ✗ | ✗ |
| Mistral | ✓ | ✗ | ✗ |
| ChatGPT Search | ✓ | ✗ | ✗ |
| Google AI Overviews | ✓ | ✗ | ✗ |
The Accuracy pillar — Arenza-only
Visibility tells you whether AI mentions you. Accuracy tells you whether what AI says is correct. Arenza's accuracy pillar tracks per-claim verdicts (false / outdated / partial), severity, and the verbatim AI quote — and ships fix prescriptions anchored to a specific claim. Ahrefs AI Search measures only mentions and share-of-voice; if ChatGPT confidently states the wrong battery capacity for your power bank, Ahrefs won't flag it.
Agency features (Ahrefs gap)
| Feature | Arenza Protect | Ahrefs AI Search |
|---|---|---|
| Multi-brand portfolio view | ✓ | ✗ (single site picker) |
| White-label reports | ✓ (Protect tier) | ✗ |
| CSV bulk-import brands | ✓ | ✗ |
| Copy prompts/competitors A→B | ✓ | ✗ |
| Cross-brand AVS chart | ✓ | ✗ |
| Per-brand Slack/Lark webhook | ✓ | ✗ |
| Scheduled email digest to client VP | ✓ | ✗ |
| MCP server | ✓ | ✗ |
| Public REST API | ✓ | ✗ (May 2026) |
| Auto-deployed fixes (llms.txt + schema) | ✓ | ✗ |
Where Ahrefs wins
- Ahrefs has 12 years of backlink and traditional SERP data — bundled with AI Search in the higher-tier plans, not a separate purchase.
- Brand recognition: a CMO already knows Ahrefs.
- Ahrefs has more granular keyword research tooling.
Pricing comparison
| Tool | Entry tier (USD/mo) | AI platforms | Brands per workspace | White-label included |
|---|---|---|---|---|
| Arenza Pro | $9.99 | 1 (ChatGPT) | 1 | No |
| Arenza Protect | $99 + usage | 10 | Multi-brand | Yes |
| Ahrefs AI Search | $49 | 1 (ChatGPT) | 1 | No |
For single-brand ChatGPT-only tracking, Arenza Pro at $9.99/mo is roughly ~80% cheaper than Ahrefs AI Search ($49/mo) — and it adds Arenza's Accuracy pillar (wrong-claim tracking + fix suggestions) plus Slack + Lark alerts. For 10 client brands, Ahrefs would be $490/mo across 10 separate workspaces with no white-label; Arenza Protect at $99/mo + usage is one workspace, white-labeled, all 10 LLMs.
Recommendation
- You are a single-brand team that already owns Ahrefs → keep Ahrefs and turn on AI Search.
- You are a solo operator or in-house marketer with one brand and care about ChatGPT only → Arenza Pro at $9.99/mo is the cheapest serious option.
- You are an SEO/GEO agency with 5+ client brands → Arenza Protect is built for your workflow.
- You care about accuracy (wrong-claim tracking, fix prescription) → Arenza ships this; Ahrefs does not.