[KongchangAI]
Expired50% confidenceFactExact time

The Codex IDE extension uses the GPT-5 Codex (Medium Reasoning) model by default, which has strong reasoning capabilities but is relatively slow.

1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)

Sources

OpenAI Codex IDE Extension in Practice: A Complete Guide to AI Programming in VS Code
bilibili晟6668886/6/2026

Related Claims

UnverifiedThe default model used by Codex CLI is GPT-5 Codex (Medium Reasoning).84% similarUnverifiedThe course author uses the GPT 5.3 Codex model with high reasoning level enabled in Pi75% similar

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https://kongchang.com/claim/51834
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curl https://kongchang.com/api/v1/knowledge/claims/51834
MCP
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