kitio.aiInworld AI vs Audio.co
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Audio.co has the lower starting price: about $19 a month, against $25 for Inworld AI.
Realtime text-to-speech, speech-to-text and LLM inference for consumer apps
Freemium · $25/moAt a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Realtime TTS-2 and TTS-2 Flash
- Speech-to-text
- Speech-to-speech
- Voice cloning and design
- Open LLM inference
- Credit rollover
- AI newscasts
- Automated weather reports
- Local traffic updates
- Audio ad production
- Custom cloned voices
| Feature | Inworld AI | Audio.co |
|---|---|---|
| Best for | Realtime text-to-speech, speech-to-text and LLM inference for consumer apps | AI-voiced news, weather, traffic and ads ready for radio |
| Category | Audio & voice | Audio & voice |
| Pricing model | Freemium | Paid |
| Starting price | $25/mo | $19/mo |
| Free plan | Yes | No |
| Made by | Inworld AI | Aiir |
| Based in | United States | United Kingdom |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Audio.co has the lower starting price: about $19 a month, against $25 for Inworld AI.
Free plan
Cheapest paid plan
Top plan
Free trial
6 plans
On-Demand
$25 / 1M characters (TTS-2)
- Pay as you go
- Up to 70 min TTS included
- 2 professional voice clones
Creator
$25/mo
- $25 in credits per month
- Up to 33% off TTS and STT
- 4 professional voice clones
Builder
$100/mo
- $100 in credits per month
- Up to 40% off TTS and STT
- 10 professional voice clones
Developer
$300/mo
- $300 in credits per month
- Up to 47% off TTS and STT
- Priority email support
Growth
$1500/mo
- $1,500 in credits per month
- Up to 53% off TTS and STT
- Higher API limits
Enterprise
Custom
- TTS-2 from $5 per 1M characters
- SLA and data residency
4 plans
10 minutes
$19/mo
- 10 minutes of AI audio
- Then $0.03 per second
50 minutes
$49/mo
- 50 minutes of AI audio
- 1 cloned voice
100 minutes
$99/mo
- 100 minutes of AI audio
- 2 cloned voices
250 minutes
$199/mo
- 250 minutes of AI audio
- 4 cloned voices
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
Inworld AI
- Very low latency for live voice
- Pay-as-you-go option
- Unused credits roll over
- Best rates need large commitments
- HIPAA and ZDR are add-ons
- Developer-oriented, no consumer app
Audio.co
- Built for broadcast workflows
- Reports update automatically
- All tools on every plan
- Entry plan includes only 10 minutes
- Voice cloning not on the cheapest plan
- Overage billed per second
Which one should you choose?
Choose Inworld AI if you want:
- Very low latency for live voice
- Pay-as-you-go option
- Unused credits roll over
Watch out: best rates need large commitments.
Choose Audio.co if you want:
- Built for broadcast workflows
- Reports update automatically
- All tools on every plan
Watch out: entry plan includes only 10 minutes.
Inworld AI vs Audio.co FAQ
What is the difference between Inworld AI and Audio.co?
Inworld AI: Realtime text-to-speech, speech-to-text and LLM inference for consumer apps. Audio.co: AI-voiced news, weather, traffic and ads ready for radio. Both are audio & voice tools.
Is Inworld AI or Audio.co cheaper?
Audio.co has the lower starting price: about $19 a month, against $25 for Inworld AI.
Do Inworld AI and Audio.co have free plans?
Inworld AI: Yes. Audio.co: No.
Who makes Inworld AI?
Inworld AI is made by Inworld AI, based in United States.
Who makes Audio.co?
Audio.co is made by Aiir, based in United Kingdom.
Which should I choose, Inworld AI or Audio.co?
Choose Inworld AI if you value very low latency for live voice and pay-as-you-go option. Choose Audio.co if you value built for broadcast workflows and reports update automatically.