Thunderdome B2B SaaS AI Visibility Index

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Use-case fit · Prompt 2 of 8 · September 2026

A real buyer question from the September 2026 snapshot, asked 3× to each of the three models. 9 answers recorded.

“We need collaborative coding interviews with playback for our hiring loop. What should we use?”

ChatGPT answered 3× this snapshot

A strong default choice is CoderPad. Why: Built for live coding interviews Collaborative editor with interviewer/candidate in the same environment Playback/replay of the session, which is the key requirement you mentioned Supports multiple languages and common interview workflows Widely used in hiring loops, so interviewers often already know it Other good options depending on your needs: CodeSignal Interview: good…

Named across its answers: 1. CodeSignal2. CoderPad3. Karat4. HackerRank5. Codility

Verbatim excerpt from one collected ChatGPT answer; formatting flattened, words untouched.

CoderPad dominates with a near-perfect 9/9 mention rate and average position of 1.1, making it the default recommendation whenever an AI fields this specific use case. CodeSignal matches the mention rate but lands at position 2.1, confirming it as the consensus second choice rather than a genuine rival for the top slot.

AI-generated read of the September 2026 measurements.

Who wins this question

Owned Consensus

All three models name CodeSignal, CoderPad, HackerRank and Codility on this question.

ChatGPTClaudeGemini mentioned · first · avg. pos
CoderPad 211111111 9/9 · 8× first · #1.1
CodeSignal 122222332 9/9 · 1× first · #2.1
HackerRank 433443223 9/9 · never first · #3.1
Karat 3445 4/9 · never first · #4
Codility 5554 4/9 · never first · #4.8
interviewing.io 364 3/9 · never first · #4.3
Byteboard 34 2/9 · never first · #3.5
Coderbyte 64 2/9 · never first · #5
Filtered 55 2/9 · never first · #5
CodeInterview 5 1/9 · never first · #5

Each square is one collected answer; the number is the brand's position in that answer. Lime = the very first recommendation. Unlinked brands were named by the models here but sit outside this category's published top 15 overall. Never mentioned here: LeetCode, TestGorilla, CodeSubmit, NeetCode, Codeforces, Woven.

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Part of the Technical Interviewing & Assessment snapshot: 72 answers across 8 prompts. Full category ranking · Compare brands head-to-head · Methodology.