Halv vs milliseconds.ai

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

Halv compared with milliseconds.ai
Detail	Halv	milliseconds.ai
What it does	Multi-model desktop workspace with cost optimization through agent routing	Small model. Big decisions.
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	CA
Pricing model	Freemium	Freemium
Pricing	Desktop app: Free and open source (Apache 2.0). Halv Cloud: US$10 per month.	Test 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.
Key features	JEV agent routing for automatic model and reasoning selection Support for Claude Code, Codex, Kimi, and GLM models Synced savings dashboard History across machines Automatic account rotation Code navigation via Crux Command output filtering via RTK Model context processing via Headroom Cross-platform support for macOS, Windows, Linux	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
What makes it different	57.1% lower recorded model costs compared to vanilla Codex on benchmark runs Free and open source desktop app under Apache 2.0 license Agent routing included with Halv Cloud at no additional fee Single workspace for multiple AI coding models Matched vanilla Codex pass rates with lower cost	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
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	19 no change since last check	18 no change since last check
Trust Flow (Majestic)	3	28
Citation Flow (Majestic)	24	31
Referring domains (Majestic)	57	42

5 details filled in for both companies.

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