G2 anchors the answers AI engines give for most B2B software, but developer tools are the exception. G2 reports more than 3 million verified reviews, yet on questions about vector databases, CI/CD platforms and authentication providers, engines pull from Hacker News, Reddit, Stack Overflow and GitHub instead, according to EPR's Tech & B2B SaaS Citation Share Study.
Where does G2 anchor the AI answer, and where does it not?
G2 anchors the AI answer for application software such as CRM, marketing automation, customer support, ERP, e-commerce and HR platforms. EPR's Citation Share Study measured 28 vendors across 64 prompts and five engines, and the G2 pattern held across those categories.
Developer infrastructure breaks the pattern. When a buyer asks an engine for the best vector database, CI/CD platform, feature flag service, observability stack or authentication provider, the sources the engine retrieves look different from the sources it uses for CRM. A vendor in these categories cannot win by running the G2 review playbook alone.
Which four sources displace G2 for developer tools?
Hacker News, Reddit, Stack Overflow and GitHub are the four sources that replace G2 in EPR's developer-tool results. Each one holds technical opinion written by the people who use the product.
Source
What the engine reads
What earns a vendor mentions
Hacker News
Launch threads and comment discussions on a news aggregator run by Y Combinator
Repeated front-page discussion of the product by named developers
Reddit
Threads in r/programming, r/devops, r/dataengineering, r/golang, r/rust, r/Python and r/webdev
Developers recommending or criticizing the product in their own words
Stack Overflow
Questions, accepted answers and tag activity around the product
A steady flow of questions and answers that show real adoption
GitHub
Stars, issues, contributor activity and integration READMEs
An active open-source ecosystem around the product
A vendor with a thin GitHub footprint loses mentions to vendors with active open-source ecosystems, whatever the size of its sales team.
Why do review platforms miss how developers buy?
Review platforms miss developer purchases because developers choose tools by trying them, often before procurement is involved. Three differences explain the gap.
First, the buyer is different. A CRM purchase involves procurement, finance, IT and a business owner. A developer-tool purchase is often made by the developers who will use it, so the people who review the tool and the people who buy it sit in the same places: GitHub, Hacker News and Reddit.
Second, the evaluation is faster. A developer tests an authentication provider or a vector database in code, in days. G2 publishes seasonal reports, which cannot match the pace at which developer tools change.
Third, the proof lives in code. Developers judge a tool by its contribution graph, its technical posts and its conference talks. A verified user review carries less weight when the buyer can read the source.
What should developer-tool vendors change?
Developer-tool vendors should put communications effort into the four developer channels while keeping the standard SaaS work that still applies: analyst placements, customer case studies and executive press. Three moves replace the review-velocity work that drives G2 results for application software.
Move
What it replaces
How it works
Developer relations
G2 review campaigns
Technical articles, talks and tutorials, plus active presence on the four channels, give engines developer-written text to retrieve
Open source
Verified customer reviews
SDKs, examples and integrations create repositories and issue threads that engines read as evidence of adoption
Technical executive voice
CEO earned media
CTOs and founding engineers get cited by developer audiences, so their posts and talks carry more weight than a CEO interview
Where does the boundary between G2 and developer sources sit?
The boundary sits between software bought through procurement and software developers buy for themselves. Customer-facing applications, business-process software and vertical SaaS fall on the G2 side. Infrastructure, developer platforms, data tools, machine learning platforms, security primitives and observability fall on the developer side. Security vendors follow a related but distinct pattern, covered in how AI engines choose cybersecurity vendors.
The line is not clean. EPR reads Snowflake and Databricks as straddling both, because data engineers and procurement teams each evaluate them. For those vendors the engines blend G2 results with the four developer sources, and the strongest vendors run both playbooks at once.
Which vendors lose the most from assuming G2 covers everything?
Three kinds of vendor lose the most mentions when they assume G2 covers their whole retrieval surface.
Infrastructure and platform vendors that route all communications through corporate marketing miss the developer channels. Open-source companies that treat their community as a support obligation lose ground to peers that use the community as their communications channel. API-first companies that announce releases through wire press releases, not code and documentation, get little coverage where developers look.
What should a developer-tool vendor check first?
A developer-tool vendor should ask ChatGPT, Perplexity and Google AI Overviews the ten questions a developer would ask about its category, then record which sources each engine cites. If G2 is missing and Hacker News, Reddit, Stack Overflow or GitHub appear, the vendor's next quarter of communications work belongs in those channels. The full Citation Share Study shows how EPR scored vendors across 64 prompts, and the cost case for moving budget is in SaaS Digital Marketing: Why the 2019 Playbook Fails Now.
Frequently Asked Questions
Why does G2 dominance break down for developer tools?
Developers often make the purchase decision before procurement is involved, so the people who review a tool and the people who buy it gather on GitHub, Hacker News, Reddit and Stack Overflow, not G2. A verified user review also carries less weight when the buyer can read the source code.
Which four sources displace G2 in AI engine answers on developer tools?
Hacker News, Reddit programming subreddits, Stack Overflow and GitHub. In EPR's Tech & B2B SaaS Citation Share Study, engines drew on these four sources for developer-infrastructure prompts where they would otherwise cite G2.
What is the practical playbook for developer-tool vendors?
Run developer relations that produces technical content, talks and tutorials on the four channels. Treat open-source work as a core asset. Put CTOs and named engineering leaders in front of developer audiences, not only the CEO.
Written by
Sarel Doglu
Sarel Doglu is a technology and product executive with more than 25 years of experience building software and leading technology teams. He is a technology and marketing expert.
Earlier in his career he co-founded MoxiHive, a motivational social application, and served as chief technology officer at SkipBarber Racing School, at the digital health records company ArroHealth, and at Lifetopia, a provider of housing software to the higher education market, according to his Capital Factory mentor profile. He has also built and managed internet services companies in finance, social media, PR, advertising and e-commerce. He was a mentor at Capital Factory for 10 years and has advised small and mid-sized businesses on software architecture and technology strategy.
