persīv Codex
at cost, or for free.

A VS Code-based editor with a built-in local model, use your own API keys with no proxy, and persistent AI memory. Your code stays on your machine or goes straight to your provider. Nothing in between.

Windows & Linux coming soon  ·  Free with the local model, forever

Compatible with Anthropic Claude · OpenAI GPT-4o · Looking Glass — local, no key required

Four things that matter.

Built on the VS Code ecosystem — your extensions, keybindings, and workflows work out of the box

Local Model Included

On-device AI. No account. No internet. No cost.

Looking Glass is a 1.7B parameter model shipped with every copy of persīv. It runs entirely on your hardware — Apple Silicon optimized, fast enough for real work. Open the app, start coding. Nothing to configure.

Bring Your Own Keys

Your keys. Direct connection. Nothing routed through us.

API calls go straight from your machine to Anthropic or OpenAI. No proxy, no relay, no intermediary server. Your prompts and code never touch our infrastructure. You pay the provider at their listed price — we don't see the request and we don't take a cut.

Memory Crystals

Persistent context that loads before you type a word.

Save architectural decisions, prompt patterns, and project conventions as named memory. Your AI reads them at the start of every session. No re-explaining your codebase. No drift between conversations.

Real-Time Cost Tracking

Every token. Every dollar. Every team member. Live.

Token-level spend attribution by model, project, and person — updated in real time as requests flow. Set budget ceilings at the org, team, or individual level. Exportable audit trails. You always know exactly where you stand.

Built into every copy of persīv · Free forever

Meet Looking Glass.

A compact language model built for local inference. 1.7 billion parameters, optimized for Apple Silicon, runs without internet. Good for boilerplate, explanations, tests, commit messages, and quick iteration. Not a replacement for the large cloud models — a complement to them.

1.7B parameters · On-device only · Apple Silicon · No data transmitted · Free forever

Download persīv

Free to install. Free to use. No account required.

Download for macOS
Apple Silicon · Intel · Free

Windows & Linux builds coming soon.

Have an account? Sign in to sync your team and settings.  ·  New? Create a free account

Straightforward pricing.

No usage-based billing. No hidden fees. Cancel whenever you want.

Free
$0
No credit card. No time limit.
  • Looking Glass local model — unlimited
  • 20 cloud model messages per day
  • 3-day unlimited access trial
  • BYOK — bring your own API keys
  • Memory crystals
  • Real-time cost tracking
Download Free
Pro
Pro
$9.99 /seat/mo
Billed monthly. Cancel anytime.
  • Everything in Free
  • Unlimited cloud model messages
  • Team org with shared API keys
  • Budget controls — per user and team
  • Full audit trail and analytics
  • Priority support
Start Free Trial

Additional seats at $9.99/seat/month, prorated.  ·  Enterprise or self-hosted? Contact us →

Start now

Download persīv. Start coding.

Use the local model immediately, or connect your API keys when you're ready. No account required.