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Comparison · 2026
HARPA AI vs Spell
HARPA AI vs Spell: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Pricing models differ: HARPA AI is freemium, Spell is paid. Feature lists share 0 overlapping items across the two listings.
freemium
AI browser assistant for Chrome that brings chat, page-aware replies and web automation into your everyday browsing.
VS
paid
Spell is an AI agent tool that delegates multi-step tasks to autonomous agents using 100+ plugins and GPT-4.
Side-by-side
| Attribute | HARPA AI | Spell |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | freemium · $13.2 | paid · $7.5 |
| Votes | 0 | 0 |
| Category | AI Agent | AI Agent |
Features checklist
| Feature | HARPA AI | Spell |
|---|---|---|
| 50 AI command runs | ||
| vision | ||
| agent and page-aware messages total | ||
| 2 web automations | ||
| 2 custom commands | ||
| 3 in 1 package: GPT-4o | ||
| Claude 3.5 | ||
| API Key models | ||
| Data not used for training | ||
| no hourly rate limits | ||
| faster than ChatGPT Plus | ||
| Edit predefined commands | ||
| Spell: Delegate tasks to autonomous AI agents with plugins | ||
| powered by GPT-4 |