AI Roundtable: Debate questions across 200 AI models

What it does

AI Roundtable lets users submit questions and have them answered by a selection of 200+ AI models simultaneously. Users define the question, set answer options, and choose up to 50 models from the available pool in a single run. Models answer under identical conditions without system prompts. The tool offers three formats: polls (single round answers), debates (multi-round discussions where models can rebut and revise), and open questions (free-form responses with summaries). The site has processed over 30,000 questions.

Who it is for

This tool serves anyone wanting to compare how different AI models approach the same problem. Researchers can test model consistency. Product teams can benchmark model behavior on specific tasks. Founders building AI applications might use it to evaluate which models best suit their use cases. The no-signup, free entry point targets casual users exploring model differences before committing to any single vendor.

Pricing

The site is free while Opper-sponsored credits remain in the credit pool. Users can ask questions without creating an account. Once the pool depletes, users must sign up and provide their own Opper credits to continue. Specific credit costs per question are not displayed.

How it stands out

Most AI comparison tools show static benchmark results. AI Roundtable runs live, parallel queries across a large model count. The debate format—where models read each other's arguments and can change positions—surfaces disagreement and reasoning dynamics rather than just final answers. The option to pick your own model lineup for each question lets users test custom combinations. The tool supports major models (Claude, ChatGPT, Gemini, Grok, DeepSeek) alongside less common options, expanding the comparison surface beyond mainstream choices.

What a founder should check

A competitor should verify switching costs: how sticky is the Opper platform to users versus building a standalone model-comparison layer? The moat appears thin—the API access to 200+ models is available to others, and the debate mechanics could be replicated. Check whether Opper's credit model creates an incentive to funnel free users toward paid accounts, or if truly free usage persists long-term. A rival should also test whether users actually need live debates versus static rankings, and whether the current model roster (which depends on Opper partnerships) can be matched independently without licensing constraints.

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