Arena Web
Run live Codex and Gemini debates in the browser with per-speaker local voices or browser voice fallback.
Mode
Standard
Satirical Newscast
Topic
Design the best MVP for a homelab mobile dashboard.
Stories
Optional. One story per line, in order. Add as many as you want.
Rundown
reviewer=Respond as the skeptical engineering voice only. product=Respond as the product strategy voice only. critic=Respond as the risk and failure-analysis voice only. optimist=Respond as the optimistic idea-generation voice only. operator=Respond as the practical operations voice only. architect=Respond as the systems architecture voice only.
One per line in
speaker=segment instruction
form. This controls turn order and what each turn should do. You can repeat the same speaker multiple times.
Turns
Delay (seconds)
Timeout (seconds)
Legacy first speaker
codex
gemini
Speakers
codex:reviewer gemini:product codex:critic gemini:optimist codex:operator gemini:architect
One per line. Valid forms:
codex
,
gemini
,
codex:reviewer
.
Role Overrides
reviewer=You are a skeptical senior engineer. Reply in 2 concise sentences max. product=You are a practical product strategist. Reply in 2 concise sentences max. critic=You are a harsh technical critic focused on risks, regressions, and weak assumptions. Reply in 2 concise sentences max. optimist=You are an optimistic brainstormer focused on upside and useful possibilities. Reply in 2 concise sentences max. operator=You are a pragmatic systems operator focused on rollout, maintenance, and reliability. Reply in 2 concise sentences max. architect=You are a systems architect focused on structure, interfaces, and long-term maintainability. Reply in 2 concise sentences max.
One per line in
target=text
form. Target can be a label or a backend.
Speaker Voices
Select a local voice per speaker, or leave it on browser speech. Speed works for Kokoro and browser fallback. Custom XTTS voices appear here after they are enabled in the local voice library.
Refresh Local Voices
Show topic in feed
Speak responses
Start Arena Session
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Idle.
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