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Cuey

What is Cuey?

Cuey is a browser-extension AI comparison tool for knowledge workers that checks answers across models before you trust one. It runs alongside ChatGPT, Claude, Gemini, Grok, and Mistral, showing side-by-side responses with full context and manual prompt routing. Features include Compare before you trust, Own your memory, Built for trust, and Privacy by architecture. Plans run Free $0 forever and Pro $9.99/month.

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At a glance

Best for
Cuey is best for knowledge workers who want a quick second opinion before trusting an AI answer.
Pricing
Free $0 forever; Pro $9.99/month

What does Cuey do?

Cuey runs alongside ChatGPT, Claude, Gemini, Grok, and Mistral to compare answers in the background and surface a stronger response when one appears. Instead of forcing you to tab-hop, it keeps the original prompt in place, shows side-by-side responses with full context, and lets you manually route a prompt to the model you want. The browser extension is the main workflow, so comparison happens quietly while you stay in your normal AI app. At scale, Cuey supports 30+ models and gives free users 15 comparisons per week, while Pro raises that to 100 per week. Its privacy-first architecture keeps prompts on your device, with sensitive data encrypted locally and no prompt logging or server-side storage. The product also preserves context across model switches, so your history and preferences follow you instead of resetting each time. Cuey's site shows use in research, advice, and other judgment-heavy tasks, where multiple perspectives can reduce overconfidence.

Why use Cuey?

  • It compares answers across models without forcing you to leave the AI app you already use.
  • Its portable memory keeps context and preferences from getting trapped inside one model silo.
  • The browser-extension workflow makes cross-checking feel automatic rather than like a separate research step.
  • Privacy-first architecture keeps prompts on your device and avoids server-side prompt logging.
  • Support for 30+ models gives you broader coverage when one model misses nuance or confidence.

Who is Cuey for?

  • Researchers who need multiple model perspectives before relying on a single answer.
  • Writers who want to compare drafts without leaving their current AI workflow.
  • Product teams who review judgment-heavy prompts and want stronger cross-model checks.
  • Power users who switch between models and want their context to follow them.
  • Privacy-conscious users who want local prompt handling instead of server-side logging.

What are Cuey's key features?

Compare before you trust

Run side-by-side comparisons across ChatGPT, Claude, Gemini, Grok, and Mistral so you can spot differences before relying on one answer.

Own your memory

Save and revisit past comparisons, with prompt history and export options that keep prior model outputs easy to review later.

Built for trust

Use full-context side-by-side responses and manual prompt routing to choose the model yourself, reducing guesswork when answers conflict.

Privacy by architecture

Cuey keeps comparisons local to your workflow with a browser extension you can pin, helping you review AI outputs without extra setup.

More comparisons

Get 15 comparisons per week on the free plan and 100 per week on Pro, giving you more room to test 30+ models.

Default models

Start with the default model set, including ChatGPT, Claude, Gemini, Grok, and Mistral, so common comparisons are ready without extra configuration.

Advanced models

Access GPT-5, GPT-5.4 mini, GPT-5.4 nano, Gemini 3 Flash Preview, Gemini 3.1 Flash Lite Preview, and Grok 4.3 for deeper model checks.

What does Cuey integrate with?

  • ChatGPT
  • Claude
  • Gemini
  • Grok
  • Mistral

What are Cuey's use cases?

Researchers compare before trusting

Researchers who need multiple model perspectives use Cuey to test a question across ChatGPT, Claude, Gemini, and Grok before relying on one answer. They use Compare before you trust and compare across models to spot disagreements, then save the strongest result for later review.

Writers keep drafts in flow

Writers who want to compare drafts without leaving their current AI workflow use Cuey to run alternate versions side by side. With Own your memory and keep your context, they can revisit earlier prompts, refine wording, and keep the same thread moving without rebuilding context.

Product teams cross-check prompts

Product teams reviewing judgment-heavy prompts use Cuey to pressure-test decisions across multiple models before shipping. Built for trust and More comparisons help them catch weak reasoning early, while side-by-side responses make it easier to choose the clearest recommendation.

Privacy-first users keep prompts local

Privacy-conscious users who want local prompt handling instead of server-side logging use Cuey to compare models without giving up control of their workflow. Privacy by architecture and Pin the extension support a browser-based setup that keeps prompt handling closer to the user.

How does Cuey work?

  1. Pin the extension in your browser, then open Cuey from the page where you already work. Start with the first prompt you want checked, instead of switching to a separate app.
  2. Choose a default model or pick from Basic models and Advanced models, including GPT-5.4 nano, GPT-5.4 mini, GPT-5, Gemini 3 Flash Preview, and Grok 4.3.
  3. Run compare across models to generate side-by-side responses with full context. Use Compare before you trust to spot differences quickly and decide which answer deserves a closer look.
  4. Save the comparison, then revisit it later with Own your memory. Keep your context as you move between prompts, so follow-up work stays grounded in the same thread.
  5. Upgrade to Pro when you need More comparisons, long-context and advanced reasoning modes, plus export, share, and prompt history for heavier review workflows.

How much does Cuey cost?

Free

$0 forever
  • For exploring and casual use
  • Access to all 30+ models included
  • TOTAL COMPARISONS
  • 15/ week
  • Resets every Monday
  • Access to ChatGPT, Claude, Gemini, DeepSeek & Grok
  • Side-by-side responses with full context
  • Manual prompt routing, pick your model
  • Save & revisit past comparisons

Pro

$9.99/month
  • Access to all 30+ models included
  • TOTAL COMPARISONS
  • 100/ week
  • ≈ 16 per day · 33× more than Free
  • Everything in Free, with way more headroom
  • Priority queue during peak hours
  • Long-context & reasoning modes
  • Export, share & prompt history

Frequently asked questions

What is Cuey?

Cuey is a browser-extension AI comparison tool for knowledge workers that checks answers across models before you trust one. It runs alongside ChatGPT, Claude, Gemini, Grok, and Mistral, showing side-by-side responses with full context and manual prompt routing. Features include Compare before you trust, Own your memory, and Privacy by architecture. Plans run Free $0 forever and Pro $9.99/month.

How much does Cuey cost? Is it free?

Cuey has a free plan, with paid tiers including Pro at $9.99/month.

What is Cuey used for? Who is it for?

Cuey is used for Compare before you trust, Own your memory, and Built for trust. It's built for Researchers, Writers, and Product teams.

Does Cuey have an API and what does it integrate with?

Cuey doesn't publish a public API. It integrates with ChatGPT, Claude, Gemini, Grok, Mistral.

Editor's read

Free users get 15 comparisons per week, while Pro raises that to 100. Check whether your expected review volume will stay under the free cap or quickly require the paid tier.

Every listing on AgentsIndex passes the same public editorial bar. Listings are built from a structured read of the vendor's own pages rather than first-hand product trials. Pricing and features are checked against the live site at the date of last verification.

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Source policy: Listings are built from first-party vendor pages by default; third-party references are used only when they add verifiable context not available on the vendor site.

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