kitio.aiDigitalOcean vs Ultravox
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. DigitalOcean starts at See pricing page and Ultravox starts at $100/mo. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Hosted model inference
- Managed Agents
- Sandboxes for coding agents
- Action Gateway for tools
- Managed databases
- Containers and storage
- Speech-native model
- Real-time voice agents
- Outbound call scheduler
- Custom voices
- SIP support
| Feature | DigitalOcean | Ultravox |
|---|---|---|
| Best for | Cloud for running AI inference, agents and apps in production | Speech-native voice AI platform for real-time voice agents |
| Category | Models & APIs | Models & APIs |
| Pricing model | Paid | Freemium |
| Starting price | See pricing page | $100/mo |
| Free plan | No | Yes |
| Made by | DigitalOcean | Ultravox (Inworld) |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
DigitalOcean starts at See pricing page and Ultravox starts at $100/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Inference
From $0.05 / M tokens
- Hosted AI models
- Single API
- No infrastructure to manage
Action Gateway
$0.10 / 1,000 calls
- 16,000+ tools
- Credentials kept from the model
- Retries and rate limits
Harness Runtime
From $0.0535 / hour
- Isolated microVM sessions
- Pause, resume and fork
3 plans
Pay as you go
$0.05 / minute
- 30 free minutes of calls
- Up to 5 concurrent calls
- Unlimited playground calls
Pro
$100/mo
- No hard concurrency caps
- Outbound call scheduler
- 5 custom voices
Enterprise
Custom
- Custom pricing
- Volume rates
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
DigitalOcean
- Inference through a single API
- Usage-based pricing is stated openly
- AI and standard cloud in one account
- Managed Agents is still a public preview
- No free plan listed
- Smaller catalog than the largest clouds
Ultravox
- Skips the speech-to-text step
- 30 free minutes to start
- Unlimited playground calls
- Developer-focused, not a no-code tool
- Pay-as-you-go plan limits concurrent calls to 5
- Now part of Inworld, so the roadmap may shift
Which one should you choose?
Choose DigitalOcean if you want:
- Inference through a single API
- Usage-based pricing is stated openly
- AI and standard cloud in one account
Watch out: managed agents is still a public preview.
Choose Ultravox if you want:
- Skips the speech-to-text step
- 30 free minutes to start
- Unlimited playground calls
Watch out: developer-focused, not a no-code tool.
DigitalOcean vs Ultravox FAQ
What is the difference between DigitalOcean and Ultravox?
DigitalOcean: Cloud for running AI inference, agents and apps in production. Ultravox: Speech-native voice AI platform for real-time voice agents. Both are models & apis tools.
Is DigitalOcean or Ultravox cheaper?
DigitalOcean starts at See pricing page and Ultravox starts at $100/mo. Check both pricing pages for current plans.
Do DigitalOcean and Ultravox have free plans?
DigitalOcean: No. Ultravox: Yes.
Who makes DigitalOcean?
DigitalOcean is made by DigitalOcean, based in United States.
Who makes Ultravox?
Ultravox is made by Ultravox (Inworld), based in United States.
Which should I choose, DigitalOcean or Ultravox?
Choose DigitalOcean if you value inference through a single api and usage-based pricing is stated openly. Choose Ultravox if you value skips the speech-to-text step and 30 free minutes to start.