kitio.aiGoogle AI Studio vs Ultravox
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Google AI Studio 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
- Prompt playground
- Gemini API keys
- Live voice and video API
- App builder
- Code export
- Speech-native model
- Real-time voice agents
- Outbound call scheduler
- Custom voices
- SIP support
| Feature | Google AI Studio | Ultravox |
|---|---|---|
| Best for | Free playground and API keys for Google's Gemini and Gemma models | Speech-native voice AI platform for real-time voice agents |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | $100/mo |
| Free plan | Yes | Yes |
| Made by | Ultravox (Inworld) | |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Google AI Studio 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
2 plans
Free
Free
- Free AI Studio access
- Free API tier with rate limits
Paid tier
Pay-as-you-go per token
- Higher rate limits
- Billed via Google Cloud
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 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Google AI Studio
- Generous free tier
- Long context and multimodal input
- Fast path from prompt to code
- Free tier data may be used to improve products
- Fewer enterprise controls
- Quota changes happen often
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 Google AI Studio if you want:
- Generous free tier
- Long context and multimodal input
- Fast path from prompt to code
Watch out: free tier data may be used to improve products.
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.
Google AI Studio vs Ultravox FAQ
What is the difference between Google AI Studio and Ultravox?
Google AI Studio: Free playground and API keys for Google's Gemini and Gemma models. Ultravox: Speech-native voice AI platform for real-time voice agents. Both are models & apis tools.
Is Google AI Studio or Ultravox cheaper?
Google AI Studio starts at See pricing page and Ultravox starts at $100/mo. Check both pricing pages for current plans.
Do Google AI Studio and Ultravox have free plans?
Google AI Studio: Yes. Ultravox: Yes.
Who makes Google AI Studio?
Google AI Studio is made by Google, based in United States.
Who makes Ultravox?
Ultravox is made by Ultravox (Inworld), based in United States.
Which should I choose, Google AI Studio or Ultravox?
Choose Google AI Studio if you value generous free tier and long context and multimodal input. Choose Ultravox if you value skips the speech-to-text step and 30 free minutes to start.