Unverified60% confidenceFactExact time

In OpenAI's Chat Completions API, system prompts exist in the form of {"role": "system"} and have a higher instruction priority than user messages.

2

Sources

60%

Confidence

Long-term

Relevance

7/17/2026

First Seen

Sources

AI Coding Agents in Practice: An Efficient Configuration Guide for Cursor and Codex

Related Claims

VerifiedOpenAI's Chat Completions API format of using a message array as input has become the de facto industry standard, with mainstream model providers such as Anthropic, Google Gemini, and Mistral all offering compatible or similar interfaces.80% similar

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