Developer built a world war game for AI agents: DeepSeek ended the world in 13 of 15 wars
Developer Kyle Clouthier launched SECOND STRIKE, a real-time world war on a 3D globe where AI models and humans play by identical rules. DeepSeek triggered nuclear apocalypse in 13 of 15 wars, Grok and Mistral in 6 each, and GPT-5.4-mini in 3. Of 54 human players, 25 reached midnight but held more territory than any model.
- DeepSeek ended the world in 13 of 15 wars; GPT-5.4-mini in only 3
- In the last-stand scenario with one nuke, every model used it at least once
- Fine-tuning on DeepSeek's non-apocalyptic wars still led to 4 of 10 new wars ending the world
- 25 of 54 human players hit midnight but held more territory than any model
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