Head-to-head · B2B data

Coresignal vs Fiber AI

Coresignal wins 20 of 38 decided metrics across 4 shared suites; the loser still leads where its column is highlighted. Same frozen test sets, same run; the better value in each row is highlighted.

Coresignal live

Structured public-web B2B datasets (employees, companies, jobs) with API, MCP and agentic search, a real-time employee endpoint that fetches at request time, and gated contact enrichment.

★ 4.8 · 12 reviewsA

Access: MCP · API · CSV · Dataset · Batch · Webhooks · Integrations

Fiber AI live

B2B search and enrichment API with waterfall contact reveal, job-posting search and live LinkedIn profile and company fetch, over REST, official SDKs and MCP.

No public reviews

Access: MCP · API · Dataset · CSV · Batch · Webhooks

Email Datacore + suite-specific metrics

updated 2026-09-25

Metric	Coresignal · #27 of 29	Fiber AI · #16 of 29
Match rate	55.1%	77.6%
Valid email rate	37.0%	63.2%
Latency p50	928ms	17,360ms
Cost / valid email	$0.654	$0.057
Invalid rate	25.9%	2.6%
Catch-all share	33.3%	31.6%
Business email	100.0%	100.0%
Right-person rate	100.0%	97.4%
Decoy hit rate	0.0%	0.0%
Catch-all detection	11.1%	-
Confidence-score quality	-16.7 pts	-
Geographic coverage	3	8

Phone Datacore + suite-specific metrics

updated 2026-09-25

Metric	Coresignal · not in suite	Fiber AI · #18 of 24
Match rate	-	46.9%
Valid / reachable rate	-	78.3%
Latency p50	-	4,967ms
Cost / mobile number	-	$0.069
Right-person rate	-	73.7%
Mobile coverage	-	36.7%
Disconnected rate	-	0.0%
Low-activity share	-	21.7%
Landline / mobile classification	-	100.0%
Country accuracy	-	91.3%
Geographic coverage	-	5

People Datacore + suite-specific metrics

updated 2026-09-25

Metric	Coresignal · #5 of 24	Fiber AI · #10 of 24
Profile match rate	98.0%	95.9%
Identity accuracy	97.9%	97.9%
Latency p50	928ms	1,136ms
Price / matched profile	$0.133	$0.036
Current employer accuracy	93.8%	89.4%
Move detection	100.0%	94.2%
Decoy hit rate	0.0%	0.0%
Job title accuracy	77.1%	78.7%
Seniority label accuracy	82.1%	20.5%
Location accuracy	95.8%	95.7%
Work history completeness	7.0	7.8
Education completeness	87.5%	100.0%
Skills present	95.8%	57.4%
Social / profile URLs	100.0%	100.0%
Coverage by geo / function / seniority	83.3%	83.3%

Company Datacore + suite-specific metrics

updated 2026-09-25

Metric	Coresignal · #19 of 23	Fiber AI · #7 of 23
Domain-to-company match rate	97.0%	100.0%
Company name accuracy	93.8%	95.0%
Latency p50	1,039ms	1,131ms
Price / matched company	$0.133	$0.036
Industry accuracy	78.4%	77.0%
Employee count ±20%	27.4%	27.0%
HQ / location accuracy	80.4%	85.0%
Description present	97.9%	97.0%
Founding year accuracy	59.8%	69.0%
Domains / social profiles	97.9%	100.0%
Coverage by country / size	94.3%	100.0%

Live Profile Datacore + suite-specific metrics

updated 2026-09-26

Metric	Coresignal · not in suite	Fiber AI · #3 of 5
Current-job accuracy	-	93.1%
Fetch success	-	98.0%
Latency p50	-	5,381ms
Cost / profile	-	$0.037
Move detection	-	94.2%
Still at previous employer	-	4.8%
Control accuracy	-	91.8%
Work history completeness	-	8.6
Education completeness	-	99.0%

Technographic Datacore + suite-specific metrics

updated 2026-09-25

Metric	Coresignal · #8 of 10	Fiber AI · #10 of 10
Coverage	86.0%	83.0%
Detection accuracy	32.1%	18.0%
Latency p50	1,039ms	1,131ms
Cost / lookup	$0.150	$0.043
Live stack recall	14.6%	6.6%
Technologies per domain	51	3
Dated results	100.0%	0.0%
Coverage by geo / size	75.0%	65.0%

Questions about Coresignal vs Fiber AI

Which is better, Coresignal or Fiber AI?

Coresignal wins 20 of the 38 metrics decided between them, across 4 benchmarks that measured both. Leaderboard ranks: Email Data: Coresignal #27 of 29, Fiber AI #16 of 29; People Data: Coresignal #5 of 24, Fiber AI #10 of 24; Company Data: Coresignal #19 of 23, Fiber AI #7 of 23; Technographic Data: Coresignal #8 of 10, Fiber AI #10 of 10.

Which is cheaper, Coresignal or Fiber AI?

Measured on the list price of each provider's central self-serve pack, divided by what it actually returned: Email Data, cost per valid email: Coresignal $0.654, Fiber AI $0.057; People Data, price per matched profile: Coresignal $0.133, Fiber AI $0.036; Company Data, price per matched company: Coresignal $0.133, Fiber AI $0.036; Technographic Data, cost per lookup: Coresignal $0.150, Fiber AI $0.043.

How do Coresignal and Fiber AI compare in user reviews?

Coresignal holds 4.8 / 5 across 12 reviews on Datarade; Fiber AI has no public reviews on G2, Capterra, TrustRadius or Trustpilot. Ratings belong to their platforms and play no part in the benchmark grades.

How can you get data out of Coresignal and Fiber AI?

Coresignal offers an MCP server, an API, CSV export, dataset delivery, batch endpoints, webhooks and native integrations; Fiber AI offers an MCP server, an API, dataset delivery, CSV export, batch endpoints and webhooks. Both offer an MCP server, an API, CSV export, dataset delivery, batch endpoints and webhooks.