BigSpy vs Gauge in 2026: Multi-platform ad library vs prompt-led ChatGPT ad intelligence
BigSpy is the cheaper, broader choice for finding advertising creative across platforms. Gauge costs more, but connects observed ChatGPT placements to tracked buyer prompts and can layer in a company’s own OpenAI Ads account data.
BigSpy
Gauge- BigSpy publishes coverage for 11 advertising platforms, while access to each platform changes by plan.
- BigSpy Growth is $119 per month billed annually and adds Google Ads, YouTube, TikTok, X, Pangle, AppLovin ecommerce coverage, domain analysis, and trend tools.
- Gauge Chat Growth costs $599 per month and lists 600 prompts run daily, producing 54,000 tracked answers per month.
- Gauge records observed ChatGPT sponsored placements beside the tracked prompts where they appeared, rather than claiming a complete record of every conversation.
- A connected OpenAI Ads account lets Gauge show a company’s own budget, spend, impressions, clicks, CTR, and CPC; those are not competitor metrics.
- BigSpy offers a Facebook-only Free plan; Gauge’s reviewed profile publishes paid Gauge Chat Growth pricing and does not establish a comparable free plan.
BigSpy and Gauge overlap only if “ad intelligence” is the whole brief. BigSpy is the better first purchase for a marketer collecting creative across Facebook, Google Ads, YouTube, TikTok, and other listed platforms, because its $119 per month annual-billing Growth plan opens a wide research database. Gauge is a much narrower but more contextual answer for a team testing ChatGPT ads. Its $599 per month Gauge Chat Growth plan records sponsored placements on the specific prompts the workspace tracks, then can connect an OpenAI Ads account for first-party campaign metrics. BigSpy helps answer “what is running and how is it framed?” Gauge helps answer “which buyer questions produced an observed ChatGPT placement, and what did our own account do?” Do not buy Gauge as a cheap ad archive or BigSpy as a ChatGPT campaign reporting tool.
The tools at a glance
BigSpy
Multi-platform ad library for creative discovery, competitor research, and ecommerce product signals
BigSpy is a research database for marketers who need to find and compare ad creative across listed platforms. Its profile names Facebook, Instagram, Google Ads, YouTube, TikTok, X, Yahoo, Pinterest, Unity, Pangle, and AppLovin, with access varying by tier. Keyword, feature, and visual search make it useful for turning a loose brief into concrete examples.
Growth is the practical tier. It adds Google Ads, YouTube, TikTok, X, Pangle, AppLovin ecommerce coverage, domain analysis, and TikTok research. Product-research reports combine listing context, related creative, keyword signals, and dated performance history where available. That is evidence for a hypothesis, not proof of demand, margin, spend, or return.
BigSpy does not operate a paid account. Its popularity, impressions, duration, and last-seen fields are research signals rather than advertiser-reported campaign results. Free is a limited Facebook preview; Starter is $49 per month billed annually and Growth is $119. Choose it for broad discovery, not first-party ChatGPT campaign reporting or automated account decisions.
| Feature | Free $0 | Starter $49/mo billed annually | Growth $119/mo billed annually | Scale $299/mo billed annually | Ultimate $399/mo billed annually |
|---|---|---|---|---|---|
| Seats | 1 | 1 | 1 | 5, 1 owner + 4 members | 1 |
| Advertising platforms | Facebook, Instagram | Facebook, Instagram, Google Ads, YouTube, X, TikTok, Pangle, AppLovin ecommerce only | Same as Growth | All 11 listed platforms, AppLovin ecommerce only | |
| Searches | 10/day | Unlimited | Unlimited | Unlimited | Unlimited |
| Visual and feature search | Included in 10 total/day | 100/day | 1,000/day | 1,000/day per seat | 2,000/day |
| Creative downloads | Not included | 50/day | 300/day | 300/day per seat | 3,000/day |
| Ad pages and domain analysis | ✗ | ✗ | ✓ | ✓ | ✓ |
Gauge
AI visibility, coding-agent evaluation, and ChatGPT ad intelligence for growth teams
Gauge Chat combines AI-answer visibility work with ChatGPT ad intelligence. When it runs tracked prompts, the ChatGPT Ads view records sponsored placements and can show the advertiser, ad copy, appearance count, and associated prompts. That connects an observed placement to a buyer question rather than leaving creative in a general archive.
A connected OpenAI Ads account can bring in a company’s campaigns, ad groups, ads, budget, spend, impressions, clicks, CTR, and CPC, and Gauge marks ads matched to observed placements. Its documentation also describes Meta and Google Ads connections. Competitor findings remain observations from Gauge prompt runs, not private targeting, bids, total spend, or a complete ChatGPT census.
Gauge Chat Growth is $599 per month and publishes an allowance of 600 daily prompts, 54,000 answers per month, three users, and 18 publish-ready articles per month. Gauge Chat, Gauge Agents, and Agency Mode are separate offers. A team buying only a creative archive will pay for surrounding AI visibility and content workflow it may not use.
| Feature | Gauge Chat Growth $599/month | Gauge Chat Enterprise Custom pricing | Gauge Agents From $100/month | Agency Mode $300 per active client/month |
|---|---|---|---|---|
| Primary use | AI visibility, content, and ads | Custom AI visibility program | Coding-agent evaluations | Multi-client AI visibility |
| Published allowance | 600 prompts daily, 54,000 answers/month | Custom prompts | 1,500 credits at entry plan | One full client instance |
| AI platforms on published pricing page | ChatGPT, Google AI Mode, Microsoft Copilot | Adds Google AI Overviews, Gemini, Perplexity, Claude, and Grok | Depends on run configuration | All major AI models for pitch workspace |
| Content allowance | 18 publish-ready articles/month | Custom | Not listed | Content engine included |
| Seats | 3 users | Custom | Not listed | Not listed |
| Support and strategy | Email and Slack support | Recurring implementation and strategy sessions | Not listed | Not listed |
Head-to-head feature comparison
| Feature | BigSpy | Gauge |
|---|---|---|
| Primary job | Creative and competitor research | AI visibility and ChatGPT ad intelligence |
| Starting price | $0 Free, $49/mo Starter | $599/mo Gauge Chat Growth |
| Ad discovery scope | Up to 11 listed platforms by tier | Observed placements from tracked ChatGPT prompts; connected Meta and Google accounts |
| Prompt-level ChatGPT placement context | Not published | Yes |
| Connected OpenAI Ads account metrics | No | Yes, for a company’s connected account |
| Creative search | Keyword, feature, and visual search | Observed ad copy in ChatGPT Ads view |
| Domain and advertiser research | From Growth | Competitor appearances in tracked prompt results |
| Ecommerce research | Published product-research reports | Not published |
| Free plan | Yes, Facebook-only preview | Not verified in reviewed profile |
Which should you choose?
BigSpyGaugeGaugeGaugeBigSpy is the more sensible default for a creative researcher because its scope is broad, its tiers are public, and its Growth plan costs far less than Gauge Chat Growth. Gauge earns its much higher price only when ChatGPT ads are part of a larger AI-search program. The products look adjacent in a category list, but BigSpy is built to inspect ad-market signals while Gauge is built to attach observed sponsored placements to a managed prompt set and, if connected, a company’s own account data.
Bottom line
Choose BigSpy if the immediate job is to find creative, compare advertisers, inspect domains, or form an ecommerce test hypothesis across the platforms included in your plan. Choose Gauge if your team is actively monitoring commercial ChatGPT prompts and needs the context between an observed placement, organic answer visibility, and its own connected campaign metrics. Gauge is not a substitute for broad ad-library discovery, and BigSpy is not a substitute for first-party ChatGPT ad reporting.
Frequently asked questions
Should I choose BigSpy or Gauge for researching competitor ChatGPT ads in 2026?
Gauge is the better fit for researching observed competitor ChatGPT ads because it records placements from the prompts a workspace tracks and shows the related advertiser, ad copy, appearance count, and prompt context. BigSpy’s reviewed profile covers a broad ad library but does not establish a comparable ChatGPT placement-monitoring workflow.
Can Gauge show ChatGPT campaign spend for a competitor the way BigSpy shows creative?
Gauge cannot show a competitor’s private ChatGPT campaign spend because its competitor view is based on observed placements from tracked prompts. Gauge can show budget, spend, impressions, clicks, CTR, and CPC for a company’s own connected OpenAI Ads account, while BigSpy exposes research signals rather than advertiser-reported results.
Which is cheaper for TikTok and Google Ads creative research, BigSpy or Gauge?
BigSpy is cheaper and more directly suited to TikTok and Google Ads creative research because Growth costs $119 per month billed annually and includes both platforms. Gauge Chat Growth costs $599 per month and its reviewed materials position it around AI visibility, ChatGPT ad observations, and connected-account monitoring.
Does BigSpy have a useful free plan before I buy an ad-research tool?
BigSpy Free is useful as a limited Facebook creative preview because it includes one seat and 10 daily searches. It does not provide the multi-platform access, domain analysis, or deeper research tools that begin on paid plans, particularly on Growth.
Can I use BigSpy and Gauge together for a paid AI-search program?
BigSpy and Gauge can complement each other when a team needs broad creative inspiration alongside ChatGPT prompt-level observation. BigSpy can supply cross-platform creative and domain research, while Gauge can track selected prompts and connect a company’s OpenAI Ads account, but neither profile establishes a direct integration between the two products.
Reviewed by Filipe Lins DuarteCo-Founder & CEOVast experience talking to customers and users to understand what good software looks like. Background spans commercial and product roles.
Checked by John RiceCo-Founder & CTO15+ years building tech products and web applications. Conducted hundreds of user interviews to know what a good product looks like.
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