Anthropic vs StepFun
Which Foundation Models AI tool is better in 2026?
Anthropic
AI safety lab building Claude — a helpful, harmless, honest AI assistant.
StepFun
StepFun offers a suite of AI tools including knowledge base Q&A, image creation, and advanced multimodal reasoning models.
Side-by-side
Anthropic leads on both fronts — more capital raised ($132.6B) and a lower entry price than StepFun.
| Metric | Anthropic | StepFun |
|---|---|---|
| Taglinei | AI safety lab building Claude — a helpful, harmless, honest AI assistant. | StepFun offers a suite of AI tools including knowledge base Q&A, image creation, and advanced multimodal reasoning models. |
| Foundedi | 2021🏆 | — |
| HQi | San Francisco, US | CN |
| Employeesi | 501-1000🏆 | — |
| Neuron scorei | 98🏆 | 60 |
| Total fundingi | $132.6B🏆 | Undisclosed |
| Latest roundi | Series H · May 2026 | — |
| Valuationi | $965B🏆 | — |
| Cheapest paid plani | Pro · $20/mo🏆 | — |
| Free plani | ✓ Free | ✗ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Team · $30/mo | Step Plan · Contact sales |
| Pricing summaryi | 4 published plans | 1 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Anthropic and StepFun.
| Capability | Anthropic | StepFun |
|---|---|---|
| MCP support | ✓ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✓ | ✗ |
| OAuth 2.0 | ✓ | ✗ |
| SDK languages | 5 (python, typescript, java, kotlin…) | — |
| Free plan | ✓ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✓ | ✗ |
🟢 Strengths of Anthropic
- Has raised more capital ($132.6B vs Undisclosed)
- Higher Neuron score (98 vs 60)
- Offers a free plan
- Lower starting price ($20/mo)
🔵 Strengths of StepFun
- Strong in Foundation Models
Which should you choose?
Choose Anthropic if price matters most — it starts at Free · From $20/mo, 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 Anthropic if you want the most established option — it has raised $132.6B, 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
$5 in free Claude API credits on signup
New developers get $5 in free Claude API credits after verifying a phone number — try Claude Sonnet, Opus, and Haiku before paying.
Terms: New API accounts only. Requires phone verification.
Frequently asked questions
Anthropic vs StepFun — which is better?
It depends on your priority. Anthropic has raised more capital and is the more established option; StepFun has broader feature depth. See the side-by-side table above.
Is Anthropic cheaper than StepFun?
Yes — Anthropic's cheapest paid plan is Pro · $20/mo, while StepFun's is Freemium.
Do Anthropic and StepFun offer free plans?
Anthropic: Yes, has a free plan. StepFun: Paid only.
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