AI21 Labs vs Liquid AI
Which Infrastructure AI tool is better in 2026?
AI21 Labs
Advanced language AI for enterprise applications
Liquid AI
Efficient general-purpose foundation models built for edge, on-device, and cloud deployment at every scale.
Side-by-side
| AI21 Labs | Liquid AI | |
|---|---|---|
| Tagline | Advanced language AI for enterprise applications | Efficient general-purpose foundation models built for edge, on-device, and cloud deployment at every scale. |
| Founded | 2017 | 2023 |
| HQ | Tel Aviv, IL | Boston, US |
| Employees | 200-500 | 51-200 |
| Total funding | $336M | $300M |
| Latest round | Series C | series-b |
| Valuation | $1.4B | — |
| Cheapest paid plan | — | — |
| Free plan | ✗ | ✓ Playground |
| Free trial | ✓ | ✓ |
| Top tier price | Enterprise / Custom Solutions · Contact sales | Enterprise · Contact sales |
| Pricing summary | 2 published plans | 2 published plans |
| Categories |
Capability matrix
Developer-facing capabilities and access signals for AI21 Labs and Liquid AI.
| Capability | AI21 Labs | Liquid AI |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 2 (Python, TypeScript) | 1 (Python) |
| Free plan | ✗ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of AI21 Labs
- Has raised more capital ($336M vs $300M)
- More mature (2017)
- Verified profile
🔵 Strengths of Liquid AI
- Higher Neuron score (75 vs 49)
- Offers a free plan
- Newer company (2023)
Which should you choose?
Choose Liquid AI if price matters most — it starts at Enterprise · Contact sales, which is friendlier for teams watching burn. Both AI Infrastructure tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose AI21 Labs if you want the most established option — it has raised $336M, 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
AI21 Labs vs Liquid AI — which is better?
It depends on your priority. AI21 Labs has raised more capital and is the more established option; Liquid AI has broader feature depth. See the side-by-side table above.
Is AI21 Labs cheaper than Liquid AI?
No — Liquid AI's cheapest paid plan is Free, while AI21 Labs's is Free trial.
Do AI21 Labs and Liquid AI offer free plans?
AI21 Labs: Free trial only. Liquid AI: Yes, has a free plan.
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