AssemblyAI vs Async
Which Developer Tools AI tool is better in 2026?
AssemblyAI
AI models for accurate speech recognition
Async
The only AI Video Editor you need to create and edit videos effortlessly by chatting with AI.
Side-by-side
| AssemblyAI | Async | |
|---|---|---|
| Tagline | AI models for accurate speech recognition | The only AI Video Editor you need to create and edit videos effortlessly by chatting with AI. |
| Founded | 2017 | — |
| HQ | San Francisco, US | — |
| Employees | 100-200 | — |
| Total funding | $78M | Undisclosed |
| Latest round | series-b · Sep 2022 | — |
| Valuation | $500M | — |
| Cheapest paid plan | — | Creator Plan · $12/mo |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Top tier price | Custom / Enterprise · Contact sales | Enterprise AI Content Workflows · $50/mo |
| Pricing summary | 2 published plans | 3 published plans |
| Categories |
Capability matrix
Developer-facing capabilities and access signals for AssemblyAI and Async.
| Capability | AssemblyAI | Async |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 7 (Python, TypeScript, JavaScript, Go…) | 2 (JavaScript, Python) |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of AssemblyAI
- Has raised more capital ($78M vs Undisclosed)
- Higher Neuron score (47 vs 15)
- Newer company (2017)
- Verified profile
🔵 Strengths of Async
- Offers a free plan
- Offers a free trial
Which should you choose?
Choose AssemblyAI if price matters most — it starts at Freemium, which is friendlier for teams watching burn. Both AI Developer Tools tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose AssemblyAI if you want the most established option — it has raised $78M, 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
AssemblyAI vs Async — which is better?
It depends on your priority. AssemblyAI has raised more capital and is the more established option; Async has broader feature depth. See the side-by-side table above.
Is AssemblyAI cheaper than Async?
Yes — AssemblyAI's cheapest paid plan is Freemium, while Async's is Creator Plan · $12/mo.
Do AssemblyAI and Async offer free plans?
AssemblyAI: Paid only. Async: Yes, has a free plan.
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