Hacker Search vs Surge AI
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | Hacker Search | Surge AI |
|---|---|---|
| Pricing | Free | Contact sales (likely enterprise) |
| Primary Use | Semantic search over HN comments | Expert human feedback for AI alignment |
| Target Audience | Developers, founders, tech enthusiasts | Frontier AI labs, AI safety teams, researchers |
| Key Feature | LLM summaries of HN discussions | Domain expert workforce (doctors, lawyers, engineers) |
| API Availability | Not available | Python SDK & REST API |
| Latest News Impact | No recent updates | Microsoft used Surge for benchmarking MAI-Thinking-1; new benchmarks (ComplexConstraints, Riemann-bench, GDP.pdf, Antidote) |
Choose Hacker Search if you need free, semantic access to HN community wisdom for research or sentiment analysis. Choose Surge AI if you're building frontier models and require expert human feedback for RLHF, red teaming, or complex benchmarks — backed by recent use by Microsoft and cutting-edge evaluations.
Discontinued: Hacker Search, the semantic search tool for Hacker News, is no longer available.
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Surge AI supplies expert human RLHF data, red teaming, and public benchmarks like GDP.pdf and the Tuesday Work Index for frontier model
Visit WebsiteWhat real users say: Hacker Search vs Surge AI
Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.
Hacker Search
16 mentions across 2 sources · 25% positive — critical (averaged across 2 sources)
Hacker News, Lemmy
What users praise
- • Semantic search finds conceptually related content without exact keywords.
- • LLM summaries of top comments provide quick, digestible insights.
- • Links to actual comments enable verification of summaries.
- • Designed specifically for the high-quality Hacker News dataset.
What frustrates them
- • Almost no community feedback available to assess reliability.
- • Only 3 years of data; older discussions are inaccessible.
- • Beta status means features may change or disappear.
- • No mobile or API integration mentioned.
Researched Jul 3, 2026
Surge AI
48 mentions across 3 sources · 38% positive — critical (weighted across 3 sources)
Hacker News, YouTube, Lemmy
What users praise
- • Credentialed workforce of doctors, lawyers and engineers instead of generic crowd annotators
- • GDP.pdf cited by OpenAI in the GPT-5.6 release with a concrete 30.7% flagship score
- • Kimi K2.7 post-training run published measurable SWE-Marathon, DeepSWE and Terminal-Bench gains
- • Benchmark catalog spans chart reasoning, dependent constraints, long-context policy and verticals
What frustrates them
- • Contact-only pricing means no public rate card, no tiers, and no way to self-serve
- • Benchmark sponsorship and independence questions raised directly in HN threads
- • Expert-credential verification process is never explained in any community source
- • No community data on support responsiveness, uptime, or SLAs at enterprise scale
Researched Oct 7, 2026
Who should pick which
- Developer researching a libraryPick: Hacker Search
Free natural language search over HN comments helps quickly gauge community sentiment without needing to browse threads.
- Founder gauging sentiment on a startup ideaPick: Hacker Search
Ask a question like 'What do developers think of no-code tools?' and get LLM summaries of relevant HN discussions.
- Frontier AI lab needing RLHFPick: Surge AI
Surge provides domain experts (doctors, lawyers, engineers) for high-quality feedback, essential for aligning advanced models.
- AI safety team running red teamingPick: Surge AI
Surge's expert workforce and adversarial testing capabilities are designed for rigorous safety evaluations.
- Researcher needing hard benchmarksPick: Surge AI
Surge's Riemann-bench, GDP.pdf, and ComplexConstraints offer challenging evaluations not available elsewhere.
Frequently Asked Questions
Hacker Search vs Surge AI: which should you choose?
Choose Hacker Search if you need free, semantic access to HN community wisdom for research or sentiment analysis. Choose Surge AI if you're building frontier models and require expert human feedback for RLHF, red teaming, or complex benchmarks — backed by recent use by Microsoft and cutting-edge evaluations.
Does Hacker Search have an API?
No, Hacker Search does not provide an API for programmatic access.
How far back does Hacker Search index HN comments?
It covers all HN comments from the past three years.
Is Surge AI suitable for simple classification tasks?
No, Surge focuses on complex, reasoning-intensive tasks; it's overkill for simple classification.
Can I try Surge AI for free?
Pricing is contact-based, so there is no free tier; you need to request a demo or trial.
What benchmarks does Surge AI offer?
Riemann-bench (extreme math), GDP.pdf (PDF understanding), ComplexConstraints (entangled instructions), Antidote (expert-graded leaderboard), and more.
Has Microsoft used Surge AI?
Yes, Microsoft used Surge human evaluations to benchmark MAI-Thinking-1, as reported in July 2026.
Does Hacker Search support keyword search?
It uses semantic search, so it works conceptually, not with exact keywords only.
Do I need to sign up for Hacker Search?
Extended access may require sign-up, but basic functionality is free without registration.
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Last reviewed: July 3, 2026