01.AI vs AI21 Labs
Which Agents AI tool is better in 2026?
01.AI
Founded by Kai-Fu Lee — maker of the Yi model family.
AI21 Labs
Advanced language AI for enterprise applications
Side-by-side
AI21 Labs is the more established option (raised $336M), but 01.AI is cheaper to start.
| Metric | 01.AI | AI21 Labs |
|---|---|---|
| Taglinei | Founded by Kai-Fu Lee — maker of the Yi model family. | Advanced language AI for enterprise applications |
| Foundedi | 2023 | 2017🏆 |
| HQi | Beijing, CN | Tel Aviv, IL |
| Employeesi | 201-500 | 200-500🏆 |
| Neuron scorei | 66🏆 | 54 |
| Total fundingi | $200M | $336M🏆 |
| Latest roundi | Series A · Nov 2023 | Series C · Nov 2023 |
| Valuationi | $1B | $1.4B🏆 |
| Cheapest paid plani | —🏆 | — |
| Free plani | ✗ | ✗ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Enterprise LLM Platform · Contact sales | Enterprise · Contact sales |
| Pricing summaryi | 1 published plans | 1 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for 01.AI and AI21 Labs.
| Capability | 01.AI | AI21 Labs |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 1 (Python) | 2 (Python, TypeScript) |
| Free plan | ✗ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✓ |
| Active deal | ✗ | ✗ |
🟢 Strengths of 01.AI
- Higher Neuron score (66 vs 54)
- Newer company (2023)
🔵 Strengths of AI21 Labs
- Has raised more capital ($336M vs $200M)
- More mature (2017)
- Verified profile
Which should you choose?
Choose 01.AI if price matters most — it starts at Freemium, which is friendlier for teams watching burn. Both AI Agents 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
01.AI vs AI21 Labs — which is better?
It depends on your priority. 01.AI is the leaner option; AI21 Labs has broader feature depth. See the side-by-side table above.
Is 01.AI cheaper than AI21 Labs?
Yes — 01.AI's cheapest paid plan is Freemium, while AI21 Labs's is Freemium.
Do 01.AI and AI21 Labs offer free plans?
01.AI: Paid only. AI21 Labs: Paid only.
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