Best Modulate alternatives

Comparison

Tool	Price from	Free plan	Category
Modulate	0.025 USD	?	APIs & models
Cartesia	5 USD/mo	yes	APIs & models
Grok API	0.02 USD	?	APIs & models
MiniMax	0.3 USD input / 1.2 USD output per M tokens	?	APIs & models
Deepgram	0.0048 USD/mo	trial	APIs & models
AssemblyAI	not listed	?	APIs & models
Replicate	0.025 USD	trial	APIs & models
Google AI Studio	0,75 USD	?	APIs & models
OpenAI Platform	0,10 USD	?	APIs & models

Each alternative in short

1. Cartesia

Real-time text-to-speech, speech-to-text and voice agent API for developers building fast, live voice conversations.

Yes, there is a free plan. Free plan: 20K credits per month, $1 prepaid agent dollars per month, access to Text to Speech and Speech to Text.

2. Grok API

Official SpaceXAI API for building apps with Grok models: text, image, video, voice, and tool calling, for developers.

The vendor does not state this clearly on the homepage or pricing page.

3. MiniMax

Multimodal AI models (LLM, video, speech, music) and AI-native products such as MiniMax Code, Design and Talkie, for developers, creators and enterprises.

The vendor does not state this clearly on the homepage or pricing page.

4. Deepgram

Enterprise voice AI APIs (speech-to-text, text-to-speech, voice agents) for developers and companies building real-time voice applications.

There is a free trial. Pay As You Go plan with a $200 free credit, no credit card required, no expiration.

5. AssemblyAI

Speech-to-text and speech understanding API models for developers building voice features into apps, agents and call tools.

The vendor does not state this clearly on the homepage or pricing page.

6. Replicate

Cloud API for running open-source and proprietary AI models (image, video, audio, LLMs) with one line of code, billed per use.

There is a free trial. A 'Try for free' option is offered on the homepage; the text does not specify the free allowance.

7. Google AI Studio

Browser-based workspace for developers to prototype with Gemini and other Google AI models, then move the same work to production via the Gemini API.

The vendor does not state this clearly on the homepage or pricing page.

8. OpenAI Platform

Developer platform for building applications with the OpenAI API, aimed at software developers.

The vendor does not state this clearly on the homepage or pricing page.

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