Expired50% confidenceFactExact time
GPT 5.6 will now proactively invoke sub-Agents even without explicit user instructions, whereas previously Codex prompts specified that sub-Agents would not be triggered unless the user actively requested them.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/12/2026
First Seen
Valid until: 10/10/2026(expired)
Sources
GPT 5.6+Codex深度实测：三档模型与Ultra模式全解析
bilibilioil欧呦7/10/2026
Related Claims
UnverifiedGPT-5 strictly executes prompts when programming and does not perform creative additional development.75% similarUnverifiedGPT-5.4 fully inherits the programming capabilities of GPT-5.3-Codex, so users no longer need to switch between reasoning models and coding models.74% similarUnverifiedGPT-5.6 enables subagents too aggressively, even when the task does not require them.73% similarUnverifiedGPT-5.6-sol is highly prone to proactively launching sub-agents, which in many scenarios leads to unnecessary token consumption.72% similarUnverifiedGPT-5.6 supports a "one-shot prompt," where Codex reads the database on its own, proactively calls various tools, and independently achieves goals.72% similar
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