01.AI vs Writer
Which Agents AI tool is better in 2026?
01.AI
Founded by Kai-Fu Lee — maker of the Yi model family.
Writer
Full-stack generative AI for enterprise
Side-by-side
| 01.AI | Writer | |
|---|---|---|
| Tagline | Founded by Kai-Fu Lee — maker of the Yi model family. | Full-stack generative AI for enterprise |
| Founded | 2023 | 2020 |
| HQ | Beijing, CN | San Francisco, US |
| Employees | 201-500 | 200-500 |
| Total funding | $200M | $321M |
| Latest round | Series A · Nov 2023 | series-c · Sep 2024 |
| Valuation | $1B | $1.9B |
| Cheapest paid plan | — | Starter · $29/mo |
| Free plan | ✗ | ✗ |
| Free trial | ✗ | ✓ |
| Top tier price | Enterprise LLM Platform · Contact sales | Starter · $29/mo |
| Pricing summary | 1 published plans | 2 published plans |
| Categories |
Capability matrix
Developer-facing capabilities and access signals for 01.AI and Writer.
| Capability | 01.AI | Writer |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 1 (Python) | 2 (Python, JavaScript) |
| Free plan | ✗ | ✗ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✓ |
| Active deal | ✗ | ✗ |
🟢 Strengths of 01.AI
- Higher Neuron score (64 vs 56)
- Newer company (2023)
🔵 Strengths of Writer
- Has raised more capital ($321M vs $200M)
- Offers a free trial
- More mature (2020)
- 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 Writer if you want the most established option — it has raised $321M, 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 Writer — which is better?
It depends on your priority. 01.AI is the leaner option; Writer has broader feature depth. See the side-by-side table above.
Is 01.AI cheaper than Writer?
Yes — 01.AI's cheapest paid plan is Freemium, while Writer's is Starter · $29/mo.
Do 01.AI and Writer offer free plans?
01.AI: Paid only. Writer: Free trial only.
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