Pay as You go
Free
Listed at $0/month with usage-based minutes
- Included minutes
- 30 free call minutes
- Rate
- $0.05 per minute after included time
Finding the possibilities
Fixie.ai
● Identity checkedResearch · Vendor site 2026-10-04
Ultravox (Fixie.ai) provides speech-native voice AI with developer APIs for real-time conversational agents, running a proprietary speech model on dedicated infrastructure instead of traditional speech-to-text pipelines.
- Category
- Research
- Free access
- Pay-as-you-go tier includes 30 free minutes of calls
- API access
- Developer site promotes APIs, playground, and agent-ready voice primitives for building voice agents
Is Fixie.ai right for you?
A good fit for
Teams shipping production voice agents that need low-latency, speech-to-speech quality with scalable concurrency.
Before you choose
Pay-as-you-go hard-caps concurrent calls at five unless you upgrade to Pro for uncapped concurrency.
Speech-native voice AI
Ultravox targets fluent real-time voice agents with developer APIs and managed inference aimed at low latency and paralinguistic fidelity.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Speech-native model | Homepage explains processing audio directly rather than transcribing to text first | Facts sourced | 2026-10-04 |
| Usage pricing | Pricing lists $0.05 per minute after 30 included minutes on pay-as-you-go | Facts sourced | 2026-10-04 |
| Acquisition | Site banner notes Ultravox was acquired by Inworld to accelerate speech research | Facts sourced | 2026-10-04 |
Understand the total cost
Fixie.ai pricing & plans
Pro
$100.00 /mo
Monthly plan shown at $100/month on pricing page
- Concurrency
- No hard caps on concurrent calls
- Features
- Outbound call scheduler and more custom voices
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Frequently asked questions
What is Fixie.ai used for?
Ultravox (Fixie.ai) provides speech-native voice AI with developer APIs for real-time conversational agents, running a proprietary speech model on dedicated infrastructure instead of traditional speech-to-text pipelines.
Does Fixie.ai have a free plan?
Pay-as-you-go tier includes 30 free minutes of calls. This record lists ongoing free access; check the plan limits before starting.
How much does Fixie.ai cost?
The listed monthly price is $100.00 USD at monthly billing. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Fixie.ai through an API?
Developer site promotes APIs, playground, and agent-ready voice primitives for building voice agents. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Pay-as-you-go hard-caps concurrent calls at five unless you upgrade to Pro for uncapped concurrency.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.