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Nexim AI Prompt Playground
Test, compare and refine AI prompts across Gemini 2.5, GPT-4o, DeepSeek, Llama 4 and 30+ more models — free, no login required.
1
Choose a provider — Gemini, OpenRouter (free models), or OpenAI
2
Add your API key — stored only in your browser, never on our servers
3
Send a prompt — tweak temperature, compare models, or generate images