TextSynth
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Introduction
TextSynth provides access to large language, text-to-image, text-to-speech, and speech-to-text models via REST API and playground.
Listed on
July 23, 2026
What is TextSynth?
TextSynth is a cloud-based service that offers access to a variety of large language models (such as Mistral, Llama), text-to-image models (Stable Diffusion), speech-to-text (Whisper), and text-to-speech (Parler-TTS) through a REST API and an interactive playground. It uses custom inference code for faster and cheaper inference on standard GPUs and CPUs. Founded in 2020, it was among the first to provide access to GPT-2.
How to use TextSynth?
- To use TextSynth, you can sign up for a free account and start using the playground to experiment with models. For programmatic access, you can use the REST API by sending requests with your API key. The service offers a free plan with rate limits and a standard plan with credit-based pricing. You can also use the websocket API for real-time speech-to-text and voice chat features.
Core features of TextSynth
- Access to large language models (Mistral, Llama, GPT-J, etc.)
- Text-to-image generation with Stable Diffusion
- Speech-to-text transcription with Whisper
- Text-to-speech with Parler-TTS
- REST API and playground
- Custom inference code for faster performance
- Free plan with rate limits and paid standard plan
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