Side-by-side comparison · Sales & Customer Support
Clay vs Hyperbound vs Sierra
Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.
Comparing 3 tools, the maximum.
At a glance
Pick it if: Growth marketers, sales ops people and agencies who build targeted lead lists and personalised outbound.
Pick it if: Sales managers and enablement teams onboarding and coaching reps on calls.
Pick it if: Large consumer brands that want an AI agent to handle a big share of their customer conversations end to end.
Overview
| Attribute | Clay | Hyperbound | Sierra |
|---|---|---|---|
| In one line | Builds and enriches lead lists from 100+ data sources, with an AI agent for web research. | AI sales role-play: practise cold calls and objections with realistic AI buyers. | Builds and runs AI customer service agents for big brands, across chat, email and phone. |
| Pricing model | Freemium | Freemium | Paid |
| Starting price | From $167/mo | Free | See website |
| Free plan | Yes | Yes | No |
| Works with Claude Code | No | No | No |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | Clay | Hyperbound | Sierra |
|---|---|---|---|
| Overall rating | 3.7 | 4.1Winner | 3.9 |
| Ease of useHow quickly someone non-technical gets value from it. | 2.5 | 4.5 | 3.0 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 5.0 | 4.0 | 4.5 |
| Output qualityHow good the results are before you fix them. | 4.5 | 4.5 | 4.5 |
| Value for moneyWhat you get for the price, including the free plan. | 3.0 | 3.5 | 3.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 3.5 | 4.0 | 4.5 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | Clay | Hyperbound | Sierra |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | No |
| Mobile app | – | – | – |
| Desktop app | – | – | – |
| Browser extension | Yes | Yes | – |
| API access | Yes | – | – |
| Teams & business | |||
| Team workspace | Yes | Yes | Yes |
| Enterprise plan or SSO | Yes | Yes | Yes |
| Connects to other apps | Yes | Yes | Yes |
| Open source or self-hosted | No | No | No |
| AI abilities | |||
| Works with your files | Yes | – | Yes |
| Understands images | – | – | – |
| Makes images | No | No | No |
| Makes video | No | No | No |
| Writes code | – | No | – |
| Runs agents or automations | Yes | Yes | Yes |
| Learns your brand or style | – | – | Yes |
| Works in many languages | – | – | Yes |
| Capabilities score | 8/ 17 | 6/ 17 | 7/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Clay | Hyperbound | Sierra |
|---|---|---|---|
| Plans | Free Free Learning Clay and small tests. | Free Free Trying AI role-play with a few reps. | EnterpriseOur pick Custom Large companies with high conversation volumes. |
LaunchOur pick From $167/mo, less billed yearly Founders and small teams building outbound lists. | PracticeOur pick Custom per user Teams that want reps rehearsing on AI. | ||
Growth From $446/mo, less billed yearly Teams syncing Clay with their CRM. | Perform Custom per user Teams that also want real calls scored and coached. | ||
Enterprise Custom Large teams needing SSO and controls. | |||
| Which plan to pick | Learn on Free, then move to Launch when you are ready to run real campaigns. Only take Growth if you need CRM sync or the API. Set credit budgets on every table. | Run the free role-plays with two or three reps first. If they keep using them, Practice covers rehearsal; only pay for Perform if you do not already have Gong or another call recorder. | There is one route: talk to Sierra's sales team. Agree clearly what counts as an outcome you pay for, and what setup and services cost, before you sign. |
Key features
| Attribute | Clay | Hyperbound | Sierra |
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Pros and cons
| Attribute | Clay | Hyperbound | Sierra |
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Who each one is for
| Attribute | Clay | Hyperbound | Sierra |
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Questions people ask
Which is better, Clay, Hyperbound or Sierra?
Hyperbound scores highest overall in our ratings (Clay 3.7/5, Hyperbound 4.1/5 and Sierra 3.9/5). Clay is best for building niche lead lists and finding emails and phone numbers from many sources. Hyperbound is best for practising cold calls before going live and onboarding new sales reps faster. Sierra is best for high-volume customer service at large brands and AI phone agents that take real actions.
Which is cheaper, Clay, Hyperbound or Sierra?
Clay: There's a free plan, and paid plans start at From $167/mo. Hyperbound: It's free to use. Sierra: Pricing isn't published; check the vendor's site for a quote.
Which is easier to use, Clay, Hyperbound or Sierra?
Hyperbound rates highest for ease of use in our scores. Sales managers and enablement teams onboarding and coaching reps on calls.
How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.
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