OpenAI o4-proto-2 Demonstrates Self-Evolving Prompt Engineering Loop
[AI-NEWS-ENTRY]
Date: 2026-02-20
Title: OpenAI o4-proto-2 Demonstrates Self-Evolving Prompt Engineering Loop
Content: OpenAI released an internal preview of o4-proto-2 showing a self-evolving prompt engineering mechanism: the model iteratively rewrites its own system prompt and few-shot examples based on task performance metrics, achieving 12–18% relative improvement on complex multi-turn reasoning and tool-use benchmarks after 8–15 self-optimization cycles without human intervention.
Keywords: self-improving prompts, meta-prompting, prompt optimization, o4-proto-2, autonomous refinement, chain-of-thought evolution
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OpenAI o4-proto-2 Demonstrates Self-Evolving Prompt Engineering Loop
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