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Flagship Multimodal
Provider: OpenAI
ChatGPT / GPT-4o Optimization Hub
Master OpenAI GPT-4o system prompts, prompt prefix caching strategies, structured JSON schema outputs, and vision API workflows.
Context Window
128,000 Tokens
Max Output
16,384 Tokens
Caching Strategy
50% Prompt Prefix Caching
Est. API Pricing
$2.50 / 1M Input Tokens
FEATURED TOOL by Vercel v0
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⚡ ChatGPT / GPT-4o System Prompts
Production-tested system prompts tuned for ChatGPT / GPT-4o.
ChatGPT Intermediate
Zero-Shot JSON Schema & OpenAPI Spec Generator
Production system prompt blueprint that forces LLMs (GPT-4o, Claude 3.5, DeepSeek R1) to output strictly valid JSON Schema Draft-07 and OpenAPI 3.1 specifications with zero conversational markdown wrappers.
View System Prompt →