Upstage vs Zyphra
Which Foundation Models AI tool is better in 2026?
Upstage
South Korean AI company best known for its Solar family of large language models and its
Zyphra
Open-science AI lab building efficient multimodal models and the Maia superagent
Side-by-side
Upstage is the more established option (raised $117M); pricing is comparable on both sides.
| Metric | Upstage | Zyphra |
|---|---|---|
| Taglinei | South Korean AI company best known for its Solar family of large language models and its | Open-science AI lab building efficient multimodal models and the Maia superagent |
| Foundedi | 2020 | 2020 |
| HQi | — | Palo Alto, United States |
| Employeesi | 11-50🏆 | — |
| Neuron scorei | 73 | 75🏆 |
| Total fundingi | $117M🏆 | $110M |
| Latest roundi | Series B | Series A · Jan 2025 |
| Valuationi | — | $1B🏆 |
| 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 | Open source |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Upstage and Zyphra.
| Capability | Upstage | Zyphra |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | 1 (Python) |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Upstage
- Has raised more capital ($117M vs $110M)
- Offers a free trial
🔵 Strengths of Zyphra
- Higher Neuron score (75 vs 73)
Which should you choose?
Choose Zyphra if price matters most — it starts at Open source, 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 Upstage if you want the most established option — it has raised $117M, 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
Upstage vs Zyphra — which is better?
It depends on your priority. Upstage has raised more capital and is the more established option; Zyphra has broader feature depth. See the side-by-side table above.
Is Upstage cheaper than Zyphra?
No — Zyphra's cheapest paid plan is Open source, while Upstage's is Free.
Do Upstage and Zyphra offer free plans?
Upstage: Yes, has a free plan. Zyphra: Yes, has a free plan.
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