Quorum — Multi-LLM Consensus for VS Code (Pro)

Quorum runs a single prompt across 14+ frontier LLMs — Claude, GPT, Gemini, Llama, DeepSeek, Mistral, Qwen, Cohere, NVIDIA — directly inside VS Code, scores the answers for semantic agreement, and surfaces exactly where the models disagree. Disagreement between strong models is the most valuable signal you can get before shipping code, taking a security call, or making a regulatory commitment.

Backed by the hosted Quorum consensus engine with a tamper-evident HSP traceability log — every consensus event sealed with a SHA-256 hash chain, useful as advisory evidence material for internal review and EU AI Act readiness documentation.

Paid commercial product — £15/mo. Quorum is source-available under FSL-1.1 and requires a paid Pro license for use in VS Code. No free tier, no trial queries. Buy Pro.

Why Quorum

Single-model answers are a single point of failure. When Claude, GPT, and Gemini all return the same answer, you have evidence. When they disagree, you have a flag — and you can decide whether to escalate, re-prompt, or stop. Quorum makes that signal first-class: weighted agreement scoring, per-model breakdown, total cost, and a tamper-evident traceability log for everything you submit.

Built for:

Regulated dev teams (finance, healthcare, legal) — every consensus result is sealed in an HSP traceability log you can present as advisory evidence material during internal review or EU AI Act Annex VI self-assessment preparation.
Security engineers — adversarial review where one model's miss is another model's catch.
Researchers and consultants — defensible answers with a paper trail.

⚖️ Legal notice. Quorum is an advisory technical toolkit. It is not a conformity assessment under Regulation (EU) 2024/1689 and Sovereign Chain Ltd is not a Notified Body under Article 31. Final conformity assessment remains the responsibility of the AI system provider (internal, Annex VI) or a designated Notified Body (external, Annex VII).

Get started in 3 steps

Buy a Pro license — £15/mo via Stripe Checkout, or run Quorum: Get Pro License from the Command Palette after install.
Open Settings (Cmd+, / Ctrl+,), search quorum, paste your license key into quorum.apiKey.
Register your provider keys so Quorum has models to orchestrate. Bring your own keys — the more you register, the richer the consensus.
```
curl -X POST https://api.quorum-ai.dev/v1/customer/keys \
  -H "X-Quorum-API-Key: YOUR_PRO_LICENSE" \
  -H "Content-Type: application/json" \
  -d '{"anthropic":"sk-ant-...","openai":"sk-...","gemini":"..."}'
```
Supported: anthropic, openai, gemini, nvidia, mistral, cohere, grok, dashscope, replicate, deepseek, zhipu, moonshot. Keys are encrypted server-side (Fernet KEK). You pay your providers directly; Quorum charges only for orchestration.

Commands

Command	What it does
`Quorum: Ask`	Free-form prompt, returns consensus answer in a side panel
`Quorum: Ask about selection`	Highlighted code + your follow-up question
`Quorum: Explain selected code`	Multi-model explanation of the highlighted code
`Quorum: Review selected code (bugs/security)`	Adversarial review across all configured models
`Quorum: Compare two implementations`	Pick two snippets, get a structured A/B verdict
`Quorum: Get Pro License`	Opens the pricing page
`Quorum: Open settings`	Jumps to the Quorum settings page

The Explain and Review commands also appear in the editor right-click menu when you have a selection.

Settings

Setting	Default	Description
`quorum.endpoint`	`https://api.quorum-ai.dev`	Quorum API endpoint
`quorum.apiKey`	`""`	Paid Pro license key from quorum-ai.dev/pricing. Required.
`quorum.providers`	`["gemini-flash","llama-3.3-70b","deepseek-v3","claude-sonnet-4-6"]`	Models to query in parallel
`quorum.maxLatencyMs`	`30000`	Per-query timeout in milliseconds
`quorum.showCostInline`	`true`	Show per-query cost inline in the result panel

Sample workflow

Highlight a function in any editor (TypeScript, Python, Rust, anything).
Right-click → Quorum: Review selected code (bugs/security).
Quorum fans the snippet out to all configured models, scores agreement, and renders a panel with the consensus verdict, dissenting opinions, and per-model latency/cost breakdown.

Pricing

Plan	Price	What you get
Pro	£15 / mo	10,000 consensus queries/mo, BYOK across all providers, tamper-evident HSP traceability log, all 14+ models
Enterprise	Contact sales	SSO, dedicated traceability-log retention, custom SLA, on-prem option

Buy Pro on Stripe · Enterprise inquiry.

License

Source-available under FSL-1.1 (Functional Source License) — read the LICENSE file. Commercial use in VS Code requires a paid Pro license validated against api.quorum-ai.dev/v1/license/validate. Source converts to Apache-2.0 two years after each release.

Quorum — Multi-LLM Consensus (Pro)

Sovereign Chain