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    The best alternatives to Letterly are Inkwell, and AssemblyAI.
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    AssemblyAI
    AssemblyAI Multilingual Speech-to-Text API with superhuman accuracy
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    Best alternatives to Letterly
    • Inkwell is one-of-a-kind press release tool that uses a proprietary scoring system — the Inkwell Index — to assist users in crafting newsworthy, high-quality press releases, regardless of your skill level.
    • At AssemblyAI, we keep our pulse on the latest developments and breakthroughs in AI research and use these advances to inform our production-ready AI models. Thousands of companies – like Spotify, CallRail, and Writer – use our API to access state-of-the-art AI models to transcribe and understand speech, and build scalable AI-powered products and features faster. LeMUR, our new framework for applying powerful LLMs to transcribed speech, is now available.