Arena is a community-powered, web-based platform created by UC Berkeley researchers that evaluates large language models through crowdsourced voting. Users submit prompts to anonymous model pairs, vote on better responses, and contribute to a public leaderboard grounded in real-world use cases. The platform hosts models from major AI companies including OpenAI, Google DeepMind, and Anthropic, serving tens of millions of builders, researchers, and creative professionals. Arena has become a significant venue for pre-release model testing, including preview releases of upcoming models like OpenAI's GPT-5. Signal Plug searches live against arena.ai's mail server to find and verify email addresses for any Arena employee.
Signal Plug searches live against arena.ai's mail server — not a static database. Get a verified email for any Arena employee with confidence score in under 2 seconds.
94% accuracy · No credit card required · 10 free searches/month
Arena is a community-powered, web-based platform created by UC Berkeley researchers that evaluates large language models through crowdsourced voting. Users submit prompts to anonymous model pairs, vote on better responses, and contribute to a public leaderboard grounded in real-world use cases. The platform hosts models from major AI companies including OpenAI, Google DeepMind, and Anthropic, serving tens of millions of builders, researchers, and creative professionals. Arena has become a significant venue for pre-release model testing, including preview releases of upcoming models like OpenAI's GPT-5.
Competitive Advantage
Arena is formerly known as LMArena and Chatbot Arena, reflecting its evolution as a platform. DeepSeek tested its models months before gaining Western media attention, demonstrating Arena's role in early model validation. Arena hosts specialized arenas like Code Arena for domain-specific evaluation, beyond general chat comparisons. The platform uses anonymous blind testing where model identities are revealed only after user voting, reducing bias. Major frontier models like OpenAI's GPT-5 and Google's Gemini 2.5 Flash Image have used Arena for public validation before full release.
The most commonly verified format at Arena:
Medium ConfidenceSignal Plug tests all common patterns against Arena's live mail server and returns whichever passes the SMTP check.
Run a live search for Arena →Data-driven signals to help you prospect Arena effectively.
Target buyers include AI companies seeking model evaluation and validation, enterprises evaluating frontier models for deployment, and AI researchers benchmarking model performance. The platform attracts technical talent and partners from top AI labs wanting real-world feedback before major releases.
Primary Contact
AI Research Directors
Tuesday–Thursday, 9am–11am
Signal Plug performs live SMTP verification against arena.ai's mail server — not a static scraped database — which means results reflect the real, current state of Arena's email infrastructure. Here's how to run a lookup:
Create a free account
Sign up at Signal Plug in under 30 seconds. No credit card required. The Free plan includes 10 searches per month so you can test the tool with real Arena contacts before upgrading.
Enter the contact's name
Type the first and last name of the Arena employee you want to reach. Signal Plug handles all seniority levels, from C-suite to individual contributors.
Enter the domain
Use arena.ai. Signal Plug tests all common naming patterns automatically and returns only the format that passes the SMTP check.
Get a verified result
Signal Plug returns an email address with a confidence score (0–100) and deliverability status (Valid, Risky, or Catch-all) within 2 seconds. The confidence score tells you how reliable the result is before you use it.
Export and use
One-click CSV export lets you bring Arena contacts into Salesforce, HubSpot, Outreach, Lemlist, or any other tool in your stack. Growth and Scale plan users can run bulk lookups across an entire list of Arena names in a single batch.
Arena competes directly with Hugging Face Spaces, Replicate, Together AI and others in the Technology space.
| Company | Size | Tier | Focus | Email Format |
|---|---|---|---|---|
| Arena | Artificial Intelligence, AI Evaluation Platforms | firstname.lastname | ||
| Hugging Face Spaces | — | — | — | firstname.lastname |
| Replicate | — | — | — | firstname.lastname |
| Together AI | — | — | — | firstname.lastname |
| eval platforms | — | — | — | firstname.lastname |
Whether you're running outbound sales, recruiting, or building a partnership list, these are the roles most frequently contacted at Technology like Arena.
Based on Arena's profile, the highest-value contacts for outbound are:
Signal Plug works for any role at any seniority level at arena.ai. If you have a name and the domain, you can find a verified email.
How well Arena fits a typical B2B outbound pipeline, based on available signals.
Good Fit
Funnel Fit Score
Most email finder tools pull from static databases of scraped email addresses. These databases go stale as people change jobs and companies update their email infrastructure. Signal Plug takes a different approach: every search performs a live check against arena.ai's mail server using SMTP verification. This means results reflect the current state of Arena's email system — not a cached result from months or years ago.
Signal Plug enriches every result with supporting data: a confidence score (0–100), deliverability status (Valid, Risky, or Catch-all), job title where available, and LinkedIn profile URL. This context helps you prioritize which Arena contacts to email first and personalize your outreach before you hit send. Plans start at $29/month for 500 searches — no annual contracts or seat fees.
Signal Plug performs a live SMTP check against arena.ai's mail server for every query — not a static database lookup. Our platform-wide accuracy rate is 94%. Each result comes with a confidence score (0–100) so you can gauge reliability before using the address.
Free plan: 10 searches. Starter ($29/mo): 500. Growth ($149/mo): 2,000. Scale ($299/mo): 5,000. No company-specific caps.
No. Signal Plug generates and verifies emails in real time via SMTP checks — no static database of Arena employee emails is maintained.
Yes. Growth and Scale plan users can upload a CSV of names and run bulk lookups against arena.ai in a single batch.
Arena is a public web-based platform that evaluates large language models by having users compare anonymous model responses and vote on quality, creating a real-world performance leaderboard.
Arena was created by researchers from UC Berkeley and is community-powered.
OpenAI, Google DeepMind, Anthropic, and DeepSeek have supplied their large language models to Arena.
Users enter prompts for two anonymous models, both models respond, users vote on the better response, and model identities are revealed after voting.
Signal Plug searches in real time against arena.ai's mail server to find and verify email addresses for Arena employees. Enter a name, enter the domain, get a verified result with a confidence score in under 2 seconds.
Start finding emails free →10 free searches · No credit card required · Upgrade from $29/month