Addendum to GPT-5 system card: GPT-5-Codex
OpenAI is releasing a specialized variant of GPT-5 optimized for agentic coding tasks, featuring adaptive compute allocation based on task complexity. This signals a shift toward task-specific model variants and dynamic inference as a competitive capability.
Why it ranks · · GPT-5-Codex is a specialized variant of GPT-5 optimized for agentic coding · 2025-09-14
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