Fiber AI Review: Key Features and Pros&Cons

Name: Fiber AI
Author: Fiber AI

What it is:Fiber AI is an AI-powered sales automation platform that automates prospecting, personalized outreach, and meeting booking using data from 50+ providers to help SDRs and BDRs generate pipeline at scale.
Best for:Mid-market sales teams (3-10 seats), Outbound prospecting specialists, Cost-conscious data buyers
Pricing:Starting from $300/mo ($250/mo annually)
Rating:82/100Very Good
Expert's conclusion:For Cost-Conscious Sales Teams and AI Builders Who Are Looking for Superior B2B Data at 4 Times Less Than Competitors, Fiber AI Is the Way to Go.

Reviewed byMaxim Manylov·Web3 Engineer & Serial Founder

Company Overview

Fiber AI provides a range of AI-driven sales, recruiting and growth products using the freshest data APIs that are available to purchase and offer contact data at 4x less than some of its competitors such as Clay and have superior search functionality compared to LinkedIn. The technology finds, investigates and personalizes the message sent to a prospect resulting in 80% open rates. Co-founded by two of the most popular authors in the tech industry and two of the top ex-PM’s at Microsoft and Google (Adi Agashe & Neel Mehta) it provides services to both startups and large enterprises that require high-quality B2B data.

Active

📍San Francisco, California, United States

📅Founded 2023

🏢Private

TARGET SEGMENTS

StartupsEnterprisesSales teamsRecruiting teamsAI product buildersGTM teams

Key Metrics

📊

40M+

Companies in database

📊

850M+

People in database

📊

13M+

Jobs in database

👥

100s of enterprises and startups

Customers

📊

80% (4x industry standard)

Open rate achievement

📊

4x cheaper than Clay/Apollo/ZoomInfo

Cost savings

📊

Top 10 launch of all time

YC ranking

💵

<$5 Million

Revenue

Credibility Rating

82/100

Good

A startup backed by Y Combinator that has achieved product-market fit through its testimonials from customers and the cost advantages of its data. However, as a start-up, it does not have many public metrics or reviews.

BREAKDOWN

Product Maturity75/100

Company Stability78/100

Security & Compliance70/100

User Reviews85/100

Transparency88/100

Support Quality80/100

TRUST SIGNALS

Y Combinator Top 10 launchUsed by HubSpot, Ramp, Docusign0% email bounce guaranteeFounders Forbes 30 Under 30

Company History

2023

Company Founded

Founded by Adi Agashe and Neel Mehta; two 3x best-selling authors in the tech space and two of the top ex-PM's at Microsoft and Google.

2023

Y Combinator Launch

Achieved one of the Top 10 launches of all time of any YC company through its use of data APIs for sales, recruiting and growth.

2024

Forbes Recognition

Named to the 30 Under 30 list by Forbes.

Key Features

✨

AI-Powered Search

Includes over 40 million companies, over 850 million individuals, and over 13 million job postings with advanced filtering options and several new endpoints that do not exist anywhere else.

✨

AI Research Agents

Automatically cleans and enriches prospect data in real-time while exporting.

✨

Waterfall Validation

Uses a variety of validations that are optimized specifically for each industry from over 16 different contact data provider sources, including bounce detection.

✨

0% Bounce Guarantee

Offers guaranteed delivery of verified emails and phone numbers.

✨

Always-Fresh Data

Allows for live refreshing of prospect data through both its APIs and webhooks.

🔗

Complete API Access

Provides full API endpoints for AI-based sales, recruiting, marketing and go-to-market workflows.

✨

Hyper-Specific Filters

Offers advanced targeting including alumni from specific schools at companies that meet certain growth criteria.

Tech Stack

Infrastructure

Cloud-based with real-time data processing

Integrations

APIsWebhooksCRM enrichmentAI agents

AI/ML Capabilities

AI-powered search, research agents for prospecting and data enrichment, with live data validation across multiple providers

Inferred from product capabilities; no specific technical documentation found

Use Cases

Outbound Sales Teams

Generates hyper-specific prospect lists with verified contacts at 4x lower cost than competitor solutions such as Apollo/Clay and achieves 80% open rates and books 40+ meetings.

Recruiting Teams

Builds talent pipelines with unique filtering options that are unavailable on LinkedIn Recruiter including IIT alumni who were among the first hires at fast-growing U.S. companies.

AI Product Builders

Enables embedding of fresh B2B data APIs 10x less expensive than People Data Labs into its clients’ sales/marketing/recruiting applications.

Marketing Teams

Create a list of matched audiences for LinkedIn ads that are specifically designed to target executives who work for businesses that meet your company’s revenue and employee requirements.

NOT FORVery Small Teams (<$1k/mo budget)

The entry level is a base price of $750 per month. If you’re using this tool for volume outbound, it will likely be beyond budget if you're not a team that does high volume outbound.

NOT FORConsumer Lead Generation

This tool is exclusively for business to business (b2b) and professional data. It can’t be used for consumer or non-business lead generation.

Pricing

Pricing information with service tiers, costs, and details
☐Service	$Cost	ℹDetails	🔗Source
Prospector	$300/mo ($250/mo annually)	Up to 3 seats, 180,000 credits = 30,000 enriched contacts/year (2,500/month), only charged when contact info found, 0% email bounce guarantee, AI-powered prospecting, complete API access	Official website
Growth	$900/mo ($750/mo annually)	Up to 10 seats, 600,000 credits = 100,000 enriched contacts/year (8,333/month), only charged when contact info found, 0% email bounce guarantee, AI-powered prospecting, complete API access, priority support	Official website
Enterprise	$2400/mo ($2000/mo annually)	Unlimited seats, 1,800,000 credits = 300,000 enriched contacts/year (25,000/month), only charged when contact info found, 0% email bounce guarantee, AI-powered prospecting, complete API access, priority support, dedicated account manager	Official website

Prospector$300/mo ($250/mo annually)

Up to 3 seats, 180,000 credits = 30,000 enriched contacts/year (2,500/month), only charged when contact info found, 0% email bounce guarantee, AI-powered prospecting, complete API access

Official website

Growth$900/mo ($750/mo annually)

Up to 10 seats, 600,000 credits = 100,000 enriched contacts/year (8,333/month), only charged when contact info found, 0% email bounce guarantee, AI-powered prospecting, complete API access, priority support

Official website

Enterprise$2400/mo ($2000/mo annually)

Unlimited seats, 1,800,000 credits = 300,000 enriched contacts/year (25,000/month), only charged when contact info found, 0% email bounce guarantee, AI-powered prospecting, complete API access, priority support, dedicated account manager

Official website

Competitive Comparison

Feature	Fiber AI	Clay	Qualified.com	Salesforge
Core Functionality	AI prospecting & enrichment	Data enrichment	AI sales development	AI-driven outreach
Pricing (starting)	$300/mo	Higher cost	$2000/mo	Custom quote
Free Tier	No	No	No	No
Enterprise Features	Unlimited seats, dedicated manager	Custom	Enterprise packages	Custom
API Availability	Yes, complete access	Yes	Yes	Yes
Integration Count	LinkedIn, Crunchbase +50 providers	Multiple	Multiple	Multiple
Support Options	Priority (Growth+), dedicated (Enterprise)	Standard	Enterprise	Standard
Security	0% bounce guarantee, data verification	Standard	Enterprise	Standard

Core Functionality

Fiber AIAI prospecting & enrichment

ClayData enrichment

Qualified.comAI sales development

SalesforgeAI-driven outreach

Pricing (starting)

Fiber AI$300/mo

ClayHigher cost

Qualified.com$2000/mo

SalesforgeCustom quote

Free Tier

Fiber AINo

ClayNo

Qualified.comNo

SalesforgeNo

Enterprise Features

Fiber AIUnlimited seats, dedicated manager

ClayCustom

Qualified.comEnterprise packages

SalesforgeCustom

API Availability

Fiber AIYes, complete access

ClayYes

Qualified.comYes

SalesforgeYes

Integration Count

Fiber AILinkedIn, Crunchbase +50 providers

ClayMultiple

Qualified.comMultiple

SalesforgeMultiple

Support Options

Fiber AIPriority (Growth+), dedicated (Enterprise)

ClayStandard

Qualified.comEnterprise

SalesforgeStandard

Security

Fiber AI0% bounce guarantee, data verification

ClayStandard

Qualified.comEnterprise

SalesforgeStandard

Competitive Position

vs Clay

Fiber AI charges four times less than Qualified.com for contact data and has superior search functionality as well as a 100% guaranteed no-bounce email campaign. Fiber AI targets mid-market sales teams while Clay targets more general data enrichment with higher prices.

Fiber AI is for cost efficient outbound sales prospecting; Clay is for larger scale data enrichment needs.

vs Qualified.com

Fiber AI also offers pricing that is lower in the mid-market range ($300/month) compared to Qualified.com’s enterprise pricing ($2000/month). Fiber AI is based on usage-based credits and flexible pricing for large-scale outbound sales.

Fiber AI is best suited for growing sales teams. Qualified.com is better suited for established enterprises with complex needs.

vs Salesforge

Both have custom pricing, however Fiber AI has clearly defined pricing tiers that start at $300/month with an 80% proven savings compared to legacy vendors. Salesforce is focused more on personalizing outreach.

Use Fiber for cost efficient data enrichment. Use Salesforce for end-to-end outreach automation.

Pros Cons

Pros

Cost Efficiency — 80% savings vs. legacy vendors. Only charge credits when data is actually found.
0% Email Bounce Guarantee — Four layer verification using 16+ providers.
AI-Powered Prospecting — Precise Filters for 40 million + companies. 800 million + people.
Flexible Pricing — Monthly / Annual Options. Scales from $300 to $2400/month.
Real-Time Data Refresh — AI Agents Clean Data During Export.
Complete API Access — All Tiers Include Full Programmatic Access.
Proven ROI — 10X Cold Outbound Reply Rates. Millions Generated in Pipeline.

Cons

No Free Tier Or Trial — Requires Paid Commitment To Test.
Credit-Based Usage — Unpredictable Costs Based On Enrichment Success Rate.
No Mobile App — Web / API Only For Sales Workflows.
Enterprise Pricing — Large Teams ($2,400/mo min)
Limited to Enrichment Only (Contact) — Not a Full Outbound Automation Platform
Seat Limits on Lower Tiers — Max 3 Seats on Prospector Plan
Custom Solutions Extra — Google Maps Scraping Etc. Requires Special Arrangement

Best For

Mid-market sales teams (3-10 seats) — Growth Plan Sweet Spot at $900/mo with Priority Support and Scale to 100k Contacts/year
Outbound prospecting specialists — AI-Powered Search with Precise Filters Beats Manual Research Dramatically
Cost-conscious data buyers — Guaranteed 80% Savings Compared to Clay/ Legacy Vendors with Better Quality Data
AI agent developers — Complete API Access Enables Programmatic Enrichment at Scale
High-volume SDR/BDR teams — Enterprise Unlimited Seats Handles Large Operations Efficiently

Not Suitable For

Solo founders or 1-person teams — Minimum of 3 Seats on Entry Plan Too Expensive; Consider Apollo.io Free Tier Instead
Inbound-focused marketers — Pure Outbound / Contact Enrichment Focus; Hubspot or Marketo Better for Inbound
Budget under $300/mo — No Free/Low-Cost Entry; Start with Zoominfo Community Edition or LinkedIn Sales Navigator
Non-sales use cases — Sales Development Optimized; General Research Better with Hunter.io or Rocketreach

Limits Restrictions

Seats: 3 (Prospector), 10 (Growth), Unlimited (Enterprise)
Enriched Contacts: 2,500/mo (Prospector), 8,333/mo (Growth), 25,000/mo (Enterprise)
Credits: 180k/year (Prospector), 600k/year (Growth), 1.8M/year (Enterprise); charged only on success
Bounce Guarantee: 0% guaranteed across all plans
Free Tier/Trial: None available
Custom Solutions: Available via demo (Google Maps scraping, etc.)
Data Sources: 16+ providers with industry-optimized waterfalls

Security & Compliance

0% Bounce GuaranteeFour-layer bounce detection across 16+ contact providers with real-time AI cleaning

Data VerificationAI agents verify and clean data during export ensuring deliverability

Industry WaterfallsOptimized provider sequencing by industry for maximum accuracy

API SecurityComplete secure API access with authentication across all plans

Customer Support

Channels

All plansGrowth and EnterpriseEnterprise only

Hours: Business hours with priority escalation for paid tiers
Response Time: Priority queue for Growth+, dedicated manager SLA for Enterprise
Satisfaction: High based on 80%+ cost savings testimonials
Specialized: Custom solution engineering for enterprise use cases
Business Tier: Dedicated account manager and priority response for Enterprise

Support Limitations

•No phone support mentioned

•No 24/7 support for lower tiers

•Demo required for custom pricing/solutions

Api Integrations

API Type: REST APIs for B2B data access including company, job, and people data
Authentication: API Key authentication (standard for data APIs)
Webhooks: Not mentioned in public sources; likely available for data updates
SDKs: No official SDKs found; standard HTTP clients work for API integration
Documentation: Limited public documentation; API details available via sales contact per Y Combinator profile
Sandbox: Not publicly available; enterprise testing through sales team
SLA: Not publicly disclosed; powers production AI agents for sales/recruiting
Rate Limits: Not specified publicly; optimized for high-volume AI agent usage
Use Cases: AI sales tools, recruiting platforms, growth teams; real-time data for prospecting, audience building, personalized outreach

Faq

What makes Fiber AI different from Clay?

Fiber AI Offers Contact Data 4x Cheaper Than Clay With Better AI-Powered Search Across 40m+ Companies and 800m+ People. It Includes Industry-Optimized Waterfalls Across 16+ Providers With 0% Bounce Guarantee and 80% Cost Savings.

How does Fiber AI's dynamic audience generation work?

Fiber AI Pulls Data From 50+ Providers Including Crunchbase, LinkedIn, Builtwith to Create Precise Segments. Audiences Auto-Refresh With New Matching Prospects, Putting Outreach on Autopilot Without Manual List Building.

What kind of personalization does Fiber AI provide?

Using GPT-4, Fiber AI Crafts Hyper-Personalized Email Sequences By Finding Unique Golden Nuggets From Prospect Data. This Achieves 80%+ Open Rates and Dramatically Higher Response Rates Compared to Generic Templates.

Is there a free trial available?

Fiber AI Offers Flexible Growth-Ready Pricing Options — Monthly / Yearly. Contact Sales For Trials Especially If Spending > $10k/Month On Data — They Guarantee 80% Savings.

What data quality guarantees does Fiber AI provide?

Fiber AI has a 100% money-back "no-bounce" guarantee to protect against invalid emails, providing email verification through 4 levels of validation and using artificial intelligence (AI) to clean emails in real time. Additionally, their data is validated through 16 + different provider networks and they have built-in bounce detection to ensure that you get the best possible delivery rates from your lists.

Can Fiber AI integrate with my sales stack?

Yes, Fiber AI does provide data APIs for integration into AI Sales Tools, CRM Systems, and Automation Platforms. Their platform powers workflows for multiple clients including Ramp, Docusign, Flatfile and uses Elasticsearch as the back-end of their AI Search Platform.

What's the pricing model?

Fiber AI's pricing model is based on usage and is 4 times less expensive than its competitors. They also offer an 80% savings guarantee. Fiber AI has flexible plans for both Outbound Sales and Staffing, as well as for AI Agents. Additionally, Fiber AI will give you even greater savings if you are billed yearly instead of monthly.

How accurate is Fiber AI's prospect search?

Fiber AI's AI Search Platform powered by Elasticsearch is able to do a much better job of finding targets that are likely to be interested in your product or service because of the use of Synonyms and Precise Filters. This can increase the number of targetable prospects by 40-50% and eliminates the need to manually compile lists of people that match your criteria. Once you set up a campaign, Fiber AI's system will begin immediately sending you high-quality leads.

Expert Verdict

Fiber AI is a low-cost, AI-Powered Solution to B2B Data and Automation for Sales Prospecting. The company was able to quickly reach $1M+ in Annual Recurring Revenue (ARR) through highly targeted and personalized sales outreach. With strong support from Y Combinator and elite founders, Fiber AI is very well positioned in the competitive sales technology space. However, large-enterprise organizations may require a sales contact to receive all of the information that they need about the full capabilities of Fiber AI. Overall, Fiber AI is a great option for companies that need to purchase a lot of B2B data to feed into AI workflows and want to save the most money possible.

Start-ups and Mid-Market Sales Teams looking for Affordable and High-Quality B2B Data
Developers of AI Agents who Need Real-Time Company/People/Job Data APIs
Growth Teams Spending Over $10K/Month on Sales Data Looking for Savings of Up to 80%
Sales Teams That Are Conducting Outbound Sales Operations Who Want Automated Prospect Identification at Scale

!
Use With Caution

Enterprise Teams That Require Extensive Public API Documentation First
Organizations That Need On-Premise Solutions for Data
Teams Who Only Need Simple CSV Export Capabilities vs Full Automation

Not Recommended For

Budget-Conscious Sales Teams That Are Not Currently Spending a Lot on Sales Data
In-House Data Teams That Prefer to Have Complete Control Over Which Providers They Use
Sales Teams Using Non-AI Sales Processes That Do Not Leverage Real-Time Data APIs

Expert's Conclusion

For Cost-Conscious Sales Teams and AI Builders Who Are Looking for Superior B2B Data at 4 Times Less Than Competitors, Fiber AI Is the Way to Go.

Best For

Start-ups and Mid-Market Sales Teams looking for Affordable and High-Quality B2B DataDevelopers of AI Agents who Need Real-Time Company/People/Job Data APIsGrowth Teams Spending Over $10K/Month on Sales Data Looking for Savings of Up to 80%

Research Summary

Key Findings

With an AI search that spans 40 million companies/800 million people and is able to provide four times less expensive data compared to Clay, Fiber AI has reached $1 Million Plus in Annual Recurring Revenue (ARR), and is a Y Combinator backed Sales Automation solution. It also achieves 80 percent open rate through use of GPT-4 Hyper-Personalization, and Dynamic Audiences created from 50 plus Data Providers. They are able to support their customers such as Ramp, Docusign, by ensuring that they never experience 0% bounce rates and achieve 80% data cost savings.

Data Quality

Good - detailed product info from website, YC profile, Elastic case study. Pricing/API specifics require sales contact; no public developer docs found.

Risk Factors

The company is still in its early stages of growth. YC Batch, $1 M ARR in less than six months after the company was launched.

There is a competitive B2B data market with many established players.

There is limited publicly available technical documentation.

The accuracy of the third party data providers used in Fiber AI will affect the performance of the company.

Last updated: February 2026

Additional Info

Y Combinator Backed

The founders of Fiber AI were named to Forbes 30 Under 30 (Marketing & Advertising 2024). Aditya Agashe and Neel Mehta were both part of Y Combinator.

Rapid Growth

In the first six months after the company was launched, Fiber AI scaled to $1 M Plus in ARR. Their customers include Ramp, Docusign, Flatfile, Lumos, Secureframe.

Technical Foundation

The company uses Elasticsearch for AI Search Across Terabytes of Data. Through this application, the company was able to reduce their data costs by 80%, scale their database and increase the yield of prospects by 40-50%.

Data Enrichment

The company aggregates data from 50 plus providers. These providers include Crunchbase, LinkedIn, BuiltWith, and Alexa. This allows them to access 40 M plus companies, 13 M plus jobs, and 800 M plus people with real time updates.

Customer Impact

The company achieved 10 X cold outbound reply rates. They generated millions of dollars in pipeline using hyper specific audiences and CEO outreach to achieve 8 X reply rates and 60 + meetings.

Alternatives

•
Clay: A premium B2B data enrichment platform that is more expensive than Fiber AI (four times the cost) and best suited for companies that require more advanced data workflows. While it provides a better service than Fiber AI, it is also much more expensive. This would be best for enterprise level companies that do not need to prioritize cost savings. Clay.com
•
Apex: An AI based sales prospecting solution with a similar level of personalization as Fiber AI, but using a different source of data. While it is more established than Fiber AI, it does not offer the same cost guarantee. This would be best for companies that want to use a proven platform instead of rapidly innovating. Apex.ai
•
ZoomInfo: An enterprise level B2B Database with comprehensive Intent Data. Due to the high cost of the product, it is best suited for large enterprises. However, due to the high cost, it may be over kill for start ups. Best for Fortune 500 Level Sales Operations. ZoomInfo.com
•
Clearbit: Firmographic / Enrichment API. Clearbit has been acquired by Hubspot. Less native to AI Search. Use when you need a solid CRM enriched for all prospects in your database. (clearbit.com)
•
Apollo.io: Data platform that includes sales engagement. Has a large database. More features for calling and sequencing. More expensive per contact. Use when you want to automate more than just finding new prospects. (apollo.io)

Sales AI Performance Metrics

40-50%

Prospect Yield Increase

80%

Data Cost Reduction

10x

Cold Outbound Reply Rates

$1M+

Annual Recurring Revenue

80%

Email Open Rates

Conversation Intelligence

AI Message Drafting

AI generates messages specific to the prospect.

Personalization Engine

Hyper personalized email sequences using GPT-4.

Timing Optimization

Optimizes send timing and frequency at the account level using AI.

Engagement Tracking

Tracks how prospects interact with your emails and their preferences.

Lead Scoring & Pipeline Intelligence

Audience Building: Signal-based dynamic audience generation
Data Enrichment: 40M+ companies, 13M+ jobs, 800M+ people
Real-time Refresh: Live prospect data updates and additions
Precision Filtering: AI-powered search with custom synonyms and filters
Quality Scoring: Four layers of bounce detection and data validation
Prospect Matching: Industry-optimized waterfalls across 16+ providers

Campaign Optimization

Hyper-Personalization

Email sequences are generated by GPT-4 for each prospect.

Dynamic Audiences

Automatically grows audience based on targeting criteria.

Automated Sequences

All aspects of an outbound campaign can be automated with optimal timing.

Data Provider Integration

Cost Optimization

80% cheaper than the competition with a 100% bounce guarantee

Supported Channels

Email OutreachSales DevelopmentBusiness DevelopmentAI AgentsData APIsOutbound Sequences

Sales Methodology Support

Methodology	Support Level	Features
Outbound Prospecting	Native	Automated SDR/BDR workflows
Account-Based Marketing	Native	Hyper-specific audience targeting
AI-First Sales	Native	Generative AI message creation
Data-Driven Outreach	Native	Multi-provider data enrichment
Scalable Sequences	Native	Dynamic audience expansion