Real AI agent use cases, with sources and setup prompts

Run a one-prompt game build across four agents and blind-judge them

Four AI agents got one prompt to build a complete game with no help. GPT-6 Astra said done after 32 minutes; Opus 5.5 was still adding things at 5 hours 38 minutes ($154). Blind AI judges scored Opus 9.0, Astra 7.5, Argon 6.7, Kimi K3 5.3.

$10 in / $50 out per 1M tokensHoursIntermediateSource linked

Source

@Novaki_ai on X · 2026-10-16

Written in our own words. Credit to the original author. Link checked 2026-10-17.

What they did

Four AI agents got one prompt to build a complete game with no help. GPT-6 Astra said done after 32 minutes; Opus 5.5 was still adding things at 5 hours 38 minutes ($154). Blind AI judges scored Opus 9.0, Astra 7.5, Argon 6.7, Kimi K3 5.3.

Result (as claimed)

Results shared on X.

Tools they used

Cost: GPT-6 Astra: from $10 in / $50 out per 1M tokens; Claude Opus 5.5: from $4 in / $20 out per 1M tokens; Gemini 4 Argon: from $2 in / $10 out per 1M tokens.

Set it up

  1. Write a one-page brief

    Describe the app in plain words: who it is for, the 3 core screens or actions, and what "done" looks like.

  2. Start the project with your agent

    Open GPT-6 Astra and paste the brief. Ask it to propose a stack and a file plan before writing code.

  3. Build one slice at a time

    Ship the smallest working flow first, run it, then add features one by one. Commit after each working step.

  4. Test it like a user

    Click through on desktop and phone. Ask the agent to add basic tests and fix anything that breaks.

  5. Check security and ship

    Keep keys in environment variables, check auth and database rules, then deploy and share the link.

Copy the full setup prompt

Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.

You are helping me set up this AI use case end to end in Claude Code.

Goal: Run a one-prompt game build across four agents and blind-judge them
What the original author did: Four AI agents got one prompt to build a complete game with no help. GPT-6 Astra said done after 32 minutes; Opus 5.5 was still adding things at 5 hours 38 minutes ($154). Blind AI judges scored Opus 9.0, Astra 7.5, Argon 6.7, Kimi K3 5.3.
Reported result (as claimed by the author): Results shared on X.
Source: https://x.com/Novaki_ai/status/2111220111642161556
Tools they used: GPT-6 Astra, Claude Opus 5.5, Gemini 4 Argon
Category: Vibe coding & apps

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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Guides for this use case

How to run multiple coding agents together · How to build with Gemini 4 Argon and Gemini agents · How to vibe code a game with AI · How to compare AI models on the same prompt

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