AI Tools With Usage-Based Pricing: 24 Pay-As-You-Go Picks

Open-weight image generation and editing models from Black Forest Labs

Speech-to-text, TTS and voice-agent APIs at usage pricing

Open reasoning models with aggressive API pricing

Production speech-to-text and speech AI API platform

Automated audio post-production: leveling, denoising and loudness

Neural web search API built for AI applications and agents

Empathic voice interface (EVI) and expressive TTS platform

Low-latency conversational TTS with dialect depth

Code completion and fill-in-the-middle model from Mistral AI

Browser full-stack build & deploy

OpenAI's text-to-image and image-editing model for API and ChatGPT

Independent index search API with LLM endpoints

ByteDance multi-shot text/image-to-video model family

Professional voice cloning and speech-to-speech for film, TV and games

ByteDance's high-fidelity text-to-image model family (up to 5.0 Pro)

Google's photorealistic text-to-image model family (Imagen 4)

Bitmap-to-vector conversion with API volume tiers

Podcast audio cleanup with filler and noise removal

Document AI with OCR and workflow automation

Multi-model image generation and editing with credits

AI marketing copy with workflows and bulk imports

Stability AI image generation (rebranded)

AI image enhancement and restoration suite

Enterprise inference platform routing 300+ models