Smallest AI vs Deepgram: Features, Pricing and User Reviews 2026

Smallest AI uses a pay as you go pricing model for its Agents and Models. New users start with $10 in free credits and only pay for what they use afterward.

Agent calls cost between $0.09 and $0.21 per minute depending on the model used, and text messages cost $0.005 each. Add-ons include Knowledge Base storage at $3 per GB per user, Knowledge Base queries at $2 per 1,000 queries, and PII removal at $0.01 per minute. Renting a phone number costs $10 per month.

For voice models, Lightning text to speech costs $0.175 per 10,000 characters, while Pulse speech to text starts around $0.003 per minute.

Larger teams can choose the Enterprise plan, which offers custom pricing, dedicated infrastructure, priority support, and compliance features, with agent calls priced as low as $0.05 per minute.

Deepgram uses usage-based pricing with three main options. Pay As You Go is free to start with a $200 credit, no minimum spend, and no credit card required, making it a solid choice for developers and startups.

• Pay As You Go: Pay only for what you use, with rates as low as $0.0042 per minute for transcription and $0.027 per 1,000 characters for text-to-speech.

• Growth ($4,000+ per year): Prepaid annual credits unlock lower per-unit rates and higher concurrency limits, with savings of up to 20 percent.

• Enterprise: Custom pricing through sales for large volumes, custom models, dedicated support, and flexible deployment options.

Add-ons like redaction and entity detection are priced separately per minute, while smart formatting and speaker diarization are included at no extra cost on every plan.