GPT-5.6 retains reasoning context across turns

// 1h agoMODEL RELEASE

GPT-5.6 retains reasoning context across turns

A key architectural detail has been revealed for OpenAI's new GPT-5.6 model family: unlike predecessor models that discarded Chain of Thought (CoT) context at each turn to save context window space, GPT-5.6 maintains its reasoning context across the entire conversation history. This change ensures that the model preserves its logical chain and intermediate reasoning steps throughout multi-turn interactions.

// ANALYSIS

Keeping the reasoning context active across turns is a major win for persistent agentic workflows and complex problem-solving, though it introduces new efficiency trade-offs.

* Multi-turn consistency: The model can reference its own prior thoughts, minimizing drift and repetitive logic in long chat threads.

* Enhanced tool-calling: Keeping CoT active supports more robust multi-step reasoning when executing chains of programmatic tool calls.

* Context window pressure: Preserving reasoning history will lead to faster token accumulation, making prompt caching and state compression critical developer features.

// TAGS

openaigpt-5.6reasoningllmai-model

DISCOVERED

1h ago

2026-07-14

PUBLISHED

1h ago

2026-07-14

RELEVANCE

8/ 10

AUTHOR

mark_k

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