20 Hume AI alternatives
Hume AI: Voice AI that reads and expresses emotion — speech models trained on human vocal expression, not just phonemes. 20 apps do similar work, most sharing API, Developers and Voice Agents, ranked by how much they have in common with Hume AI.
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Enterprise speech infrastructure — fast, accurate transcription, text to speech, and a full voice agent API.
Also: API, Developers, Text-to-Speech, Voice Agents
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Ultra-low-latency speech models built for real-time voice agents, where every millisecond is audible.
Also: API, Developers, Text-to-Speech, Voice Agents
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Low-latency speech APIs from the team behind the open-source Dia model — text-to-speech and transcription priced well below the incumbents.
Also: API, Text-to-Speech, Voice Agents
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A router for voice models: 56 speech and language models benchmarked across 10 languages, with each session sent to the one that actually wins.
Also: API, Text-to-Speech, Voice Agents
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AgentCall
Free, fully on-device voice loop for AI coding agents — talk to Claude Code, Cursor or Codex and hear them answer back out loud.
Also: Developers, Text-to-Speech, Voice Agents
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Developer platform for AI agents on Apple's own channels — programmable iMessage at scale, plus video agents that answer and place FaceTime calls in a few lines of code.
Also: API, Developers, Voice Agents
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MeetStream AI
One API for meeting bots across Zoom, Google Meet, Teams and Webex — join, record, stream and speak in real time, billed at $0.35 an hour.
Also: API, Developers, Voice Agents
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A developer platform for voice agents that make and take phone calls, with sub-second turn latency.
Also: API, Developers, Voice Agents
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Generate lifelike spoken audio with AI tools
Also: API, Text-to-Speech
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Readwise
Read-it-later app for articles, PDFs, EPUBs, newsletters, RSS and YouTube, with highlighting, AI chat and sync to Readwise reviews.
Also: API, Text-to-Speech
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AI avatar platform for scripted presenter videos and real-time conversational visual agents, with voice cloning and an API.
Also: API, Text-to-Speech
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Tatva Labs Inc.
Continuous automated QA for voice and chat AI agents, from pre-launch simulation to live call monitoring.
Also: Developers, Voice Agents
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Speech-to-text APIs with built-in understanding — transcription plus summaries, topics, and redaction in one call.
Also: API, Developers
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Google
Google's browser workbench for prototyping with Gemini models, then shipping the same prompt as production API code.
Also: API, Developers
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One API and one bill for hundreds of language models, with automatic failover between providers.
Also: API, Developers
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One API for agent harnesses — run Codex, Claude Code or Hermes behind your product with shared sessions, streaming, files and cost controls, and swap harness with a config change.
Also: API, Developers
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Privacy-first AI gateway putting 600+ models from 90+ providers behind one OpenAI-compatible API, with no prompt or output logging.
Also: API, Developers
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You.com sells web search, content extraction, answer and research APIs for AI agents; its consumer chat closed to new users in 2026.
Also: API, Developers
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Integration layer for AI agents: managed OAuth, 10,000+ prebuilt tools across 3,000+ APIs, an MCP server and an API proxy. Owned by Workday.
Also: API, Developers
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Stenography explains code and APIs with AI.
Also: API, Developers