Liner vs Parallel
Which Search AI tool is better in 2026?
Liner
Parallel
Web search and research API purpose-built for AI agents
Side-by-side
Parallel is the more established option (raised $230M); pricing is comparable on both sides.
| Metric | Liner | Parallel |
|---|---|---|
| Taglinei | — | Web search and research API purpose-built for AI agents |
| Foundedi | 2015🏆 | 2023 |
| HQi | — | San Francisco, US |
| Employeesi | 11-50 | 11-50 |
| Neuron scorei | 63 | 74🏆 |
| Total fundingi | $33M | $230M🏆 |
| Latest roundi | Series B | Series B · Apr 2026 |
| Valuationi | — | $2B🏆 |
| Cheapest paid plani | Pricing not disclosed | Pricing not disclosed |
| Free plani | ✓ | ✗ |
| Free triali | ✓ | ✓ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Free | Free trial |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Liner and Parallel.
| Capability | Liner | Parallel |
|---|---|---|
| MCP support | ✗ | ✓ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✗ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Liner
- Offers a free plan
- More mature (2015)
🔵 Strengths of Parallel
- Has raised more capital ($230M vs $33M)
- Higher Neuron score (74 vs 63)
- Newer company (2023)
Which should you choose?
Choose Parallel if price matters most — it starts at Free trial, 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 Parallel if you want the most established option — it has raised $230M, 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.
Frequently asked questions
Liner vs Parallel — which is better?
It depends on your priority. Liner is the leaner option; Parallel has broader feature depth. See the side-by-side table above.
Is Liner cheaper than Parallel?
No — Parallel's cheapest paid plan is Free trial, while Liner's is Free.
Do Liner and Parallel offer free plans?
Liner: Yes, has a free plan. Parallel: Free trial only.
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