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AssemblyAI: capabilities, use cases, and sources

Run open and frontier LLMs on your voice data—fast open models for the cleanup pass, frontier models for the reasoning pass, one API key for both.

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About this tool

Run open and frontier LLMs on your voice data—fast open models for the cleanup pass, frontier models for the reasoning pass, one API key for both. Key features: Models Provider Input Output GPT-5 Nano Open AI $0, 50 / 1M GPT-5 mini Open AI $0, 6 Luna Open AI $1, 00 / 1M GPT-5 Open AI $1, 6 Terra Open AI $2, 6 Sol Open AI $4, Which models are supported? expand_more GPT (OpenAI), Claude (Anthropic), Gemini (Google), Qwen (Alibaba), and other frontier and open-weights models, including ones we host ourselves.

Use cases
  • Models Provider Input Output GPT-5 Nano Open AI $0
  • 50 / 1M GPT-5 mini Open AI $0
  • 6 Luna Open AI $1
  • 00 / 1M GPT-5 Open AI $1
  • 6 Terra Open AI $2
  • 6 Sol Open AI $4
  • Which models are supported? expand_more GPT (OpenAI), Claude (Anthropic), Gemini (Google), Qwen (Alibaba), and other frontier and open-weights models, including ones we host ourselves

Features & use cases

Models Provider Input Output GPT-5 Nano Open AI $050 / 1M GPT-5 mini Open AI $06 Luna Open AI $100 / 1M GPT-5 Open AI $16 Terra Open AI $26 Sol Open AI $4Which models are supported? expand_more GPT (OpenAI), Claude (Anthropic), Gemini (Google), Qwen (Alibaba), and other frontier and open-weights models, including ones we host ourselves

Tech stack

AstroTailwind CSS

At a glance

Monetization
  • Freemium
Maturity signals
  • Public API
  • Model family
  • Self-hostable
Learning curve
  • Medium

Resources

developers Documentation Everything you need to integrate, build, and ship with AssemblyAI — from API reference to step-by-step guides.

Sources

Every profile keeps its sources and latest verification date.
01https://www.assemblyai.com/products/voice-agent-api