Alternatives · AI Voices
Smallest AI alternatives
As of Nov 13, 2026, the best Smallest AI alternative for most people is ElevenLabs (3.0 GPA), first in our ranking of AI voice generators. It's also the best free one.
Smallest AI compared with 6 alternatives: Rime, Cartesia, ElevenLabs, Inworld AI, Gradium and 1 more.
Smallest AI is a paid product with a free trial. 5 of the 6 alternatives are free or have a free plan.
Listings checked up to Nov 13, 2026 · Where the facts come from
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At a glance
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| Smallest AIThis tool | Free trial | Trial only | Web |
| Rime | Free plan · from $100/mo | Yes | Web |
| Cartesia | Free plan · from $5/mo | Yes | Web |
| ElevenLabs | Free plan · from $5/mo | Yes | Web, iOS, Android |
| Inworld AI | Free plan · from $25/mo | Yes | Web |
| Gradium | Free plan · from $12/mo | Yes | Web |
| Neuphonic | Paid | No | Web |
How each one differs from Smallest AI
Rime
Voice models for phone agents: text to speech and speech to speech
- Rime starts at $100 per month, with $100 of usage credit.
- Rime has a free plan, which Smallest AI lacks.
Suits: Teams building phone and call-center voice agents
Cartesia
Low-latency speech models and voice agents for developers
- Cartesia starts at $5 per month for 100,000 credits, billed monthly.
- Cartesia has a free plan, which Smallest AI lacks.
- Cartesia does not cover AI agents, which Smallest AI does.
Suits: Developers building real-time voice agents and phone bots
ElevenLabs
AI voice platform for speech, voice cloning, dubbing and voice agents
- ElevenLabs starts at $5 per month, billed annually ($6 billed monthly).
- ElevenLabs has a free plan, which Smallest AI lacks.
- ElevenLabs also lists iOS and Android apps.
- ElevenLabs also covers video generation.
- ElevenLabs does not cover AI agents, which Smallest AI does.
Suits: Creators voicing videos, podcasts and audiobooks
Inworld AI
Text-to-speech, speech-to-text and LLM API with monthly credit plans
- Inworld AI starts at $25 per month, billed monthly.
- Inworld AI has a free plan, which Smallest AI lacks.
- Inworld AI does not cover AI agents, which Smallest AI does.
Suits: Developers building real-time voice agents or companions
Gradium
Real-time voice AI API for speech, transcription and voice cloning
- Gradium starts at $12 per month, billed yearly ($13 billed monthly).
- Gradium has a free plan, which Smallest AI lacks.
- Gradium does not cover AI agents, which Smallest AI does.
Suits: Developers building voice agents that need streaming speech and transcription
Neuphonic
Text-to-speech models that run on-device or on-premises
- Neuphonic is open source, according to its own site.
- Neuphonic does not cover transcription and AI agents, which Smallest AI does.
Suits: Developers who need speech that runs on their own hardware
Limits worth knowing in Smallest AI
- Pay as you go has no monthly fee: about $0.175 per 10,000 characters for Lightning v3.1 ($0.195 for Pro) and $0.003 a minute for Pulse.
- Voice agents cost roughly $0.09 to $0.21 a minute depending on the models chosen, plus a $0.01 a minute hosting fee.
- Pay-as-you-go limits include 15 concurrent TTS streams, 100 TTS requests per minute and a 450M characters monthly cap.
- HIPAA zero data retention is a $1,000 a month add-on, and SOC 2 compliance support and SSO are Enterprise only.
Common questions
What are the alternatives to Smallest AI?
The alternatives to Smallest AI in this directory are Rime, Cartesia, ElevenLabs, Inworld AI, Gradium and Neuphonic. Each one has a side-by-side comparison with Smallest AI.
Is there a free alternative to Smallest AI?
Yes. Rime, Cartesia, ElevenLabs, Inworld AI and Gradium have a free plan alongside paid ones.
Which Smallest AI alternatives work on Android?
The Smallest AI listing does not include an Android app. ElevenLabs lists one.
Which Smallest AI alternatives work on iOS?
The Smallest AI listing does not include an iOS app. ElevenLabs lists one.
Is there an open-source alternative to Smallest AI?
Neuphonic is described as open source on its own site.
When were these prices checked?
Each listing shows its own date. On this page they run from Oct 18, 2026 to Nov 13, 2026. Vendors change prices without notice, so confirm on their site before you buy.