Onyx vs Perplexity
Which Search AI tool is better in 2026?
Onyx
Perplexity
AI-powered answer engine delivering real-time, cited responses to complex queries.
Side-by-side
Perplexity leads on both fronts — more capital raised ($2.0B) and a lower entry price than Onyx.
| Metric | Onyx | Perplexity |
|---|---|---|
| Taglinei | — | AI-powered answer engine delivering real-time, cited responses to complex queries. |
| Foundedi | — | 2022🏆 |
| HQi | — | San Francisco, US |
| Employeesi | 11-50 | 51-200🏆 |
| Neuron scorei | 72 | 79🏆 |
| Total fundingi | $10M | $2.0B🏆 |
| Latest roundi | Seed | Series F · Sep 2025 |
| Valuationi | — | $20B🏆 |
| Cheapest paid plani | Pricing not disclosed | Pro · $20/mo🏆 |
| Free plani | ✓ | ✓ |
| Free triali | ✓ | ✗ |
| Top tier pricei | Pricing not disclosed | Pro (Annual) · $200/mo |
| Pricing summaryi | Free | 2 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Onyx and Perplexity.
| Capability | Onyx | Perplexity |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | 2 (Python, Node.js) |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✓ |
🟢 Strengths of Onyx
- Offers a free trial
🔵 Strengths of Perplexity
- Has raised more capital ($2.0B vs $10M)
- Higher Neuron score (79 vs 72)
- Newer company (2022)
Which should you choose?
Choose Perplexity if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Search tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Perplexity if you want the most established option — it has raised $2.0B, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
💸 Deals
1 month of Perplexity Pro free for students
Students get one free month of Perplexity Pro — unlimited Pro searches, GPT-5, Claude, and image generation included.
Terms: Requires .edu email verification.
Frequently asked questions
Onyx vs Perplexity — which is better?
It depends on your priority. Onyx is the leaner option; Perplexity is cheaper to start. See the side-by-side table above.
Is Onyx cheaper than Perplexity?
No — Perplexity's cheapest paid plan is Pro · $20/mo, while Onyx's is Free.
Do Onyx and Perplexity offer free plans?
Onyx: Yes, has a free plan. Perplexity: Yes, has a free plan.
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