EleutherAI vs Liquid AI
Which Foundation Models AI tool is better in 2026?
EleutherAI
Non-profit open-source AI research lab behind GPT-J, GPT-NeoX, Pythia and The Pile
Liquid AI
Efficient general-purpose foundation models built for edge, on-device, and cloud deployment at every scale.
Side-by-side
Liquid AI is the more established option (raised $250M); pricing is comparable on both sides.
| Metric | EleutherAI | Liquid AI |
|---|---|---|
| Taglinei | Non-profit open-source AI research lab behind GPT-J, GPT-NeoX, Pythia and The Pile | Efficient general-purpose foundation models built for edge, on-device, and cloud deployment at every scale. |
| Foundedi | 2020🏆 | 2023 |
| HQi | United States | Boston, US |
| Employeesi | — | 51-200🏆 |
| Neuron scorei | 27 | 67🏆 |
| Total fundingi | Undisclosed | $250M🏆 |
| Latest roundi | — | Series A · Dec 2024 |
| Valuationi | — | $2.4B🏆 |
| Cheapest paid plani | Pricing not disclosed | — |
| Free plani | ✓ | ✗ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Pricing not disclosed | Enterprise Partnerships · Contact sales |
| Pricing summaryi | Free | 1 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for EleutherAI and Liquid AI.
| Capability | EleutherAI | Liquid AI |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 1 (Python) | 1 (Python) |
| Free plan | ✓ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✓ |
🟢 Strengths of EleutherAI
- Offers a free plan
- More mature (2020)
🔵 Strengths of Liquid AI
- Has raised more capital ($250M vs Undisclosed)
- Higher Neuron score (67 vs 27)
- 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 Foundation Models tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Liquid AI if you want the most established option — it has raised $250M, 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
Liquid Foundation Models — free on Liquid Playground
Try Liquid Foundation Models free in the Liquid Playground — LFM-1B, LFM-3B, and LFM-40B available for evaluation.
Frequently asked questions
EleutherAI vs Liquid AI — which is better?
It depends on your priority. EleutherAI is the leaner option; Liquid AI has broader feature depth. See the side-by-side table above.
Is EleutherAI cheaper than Liquid AI?
No — Liquid AI's cheapest paid plan is Enterprise · Contact sales, while EleutherAI's is Free.
Do EleutherAI and Liquid AI offer free plans?
EleutherAI: Yes, has a free plan. Liquid AI: Paid only.
Explore more Foundation Models tools
Contextual paths to related AI startups, deals and rankings.