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milliseconds.ai vs Voice Copilot

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

milliseconds.ai compared with Voice Copilot
Detailmilliseconds.ai logo milliseconds.aiVoice Copilot logo Voice Copilot
What it doesSmall model. Big decisions. Listen to Control
StageNot given Not given
FoundedNot given Not given
Based inCA Not given
Pricing modelFreemium Open source
PricingTest plan: 125 million free input tokens per month with test_sk keys. Production plan: $0.04 per million input tokens with prod_sk keys (no charge for output tokens). Minimum credit bundle of $10 to unlock production access. Not given
Key features
  • Classification with score distribution and confidence
  • Text and image extraction
  • Yes/no decisions with probability
  • Entity recognition and extraction
  • Field verification against source
  • Multi-level classification (classify-tree)
  • OpenAI SDK compatibility
  • Sentiment or tone rating
  • Question answering with source spans
  • SDK support for TypeScript and Python
  • Narration of agent actions using a cheap model
  • Supervisor review at checkpoints with a strong model
  • Agent pausing with Supervisor+
  • Automatic model tier selection
What makes it different
  • Optimized for bounded decisions with millisecond latency, avoiding slow token-by-token generation
  • Extremely cost-effective at $0.04 per million input tokens with no output token charges
  • 125 million free test tokens monthly with no card required
  • Production-ready with REST API, SDKs, and CLI interfaces
  • Structured responses enable direct application logic without additional parsing
  • No extra API keys required - reuses your existing CLI login
  • Catches agent mistakes before they become costly
  • Works with existing CLI agents without modification
  • Open source MIT license
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)18 no change since last check12 no change since last check
Trust Flow (Majestic)280
Citation Flow (Majestic)310
Referring domains (Majestic)420

4 details filled in for both companies.

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