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Model integrations

DeepSeek officially shows you how to put V4 inside OpenAI Codex

Last updated 2026-08-20Editorial synthesis: signals connected before judgementNot a wire dump; facts, judgement, and unknowns are separated
Configuration diagram showing the Codex interface staying the same while the model provider switches to DeepSeek V4
Editorial diagram: DeepSeek provides an official Codex provider configuration and setup script; this switches the model provider, not turns DeepSeek into an OpenAI-native model.
Bottom line

DeepSeek now provides one-click and manual Codex setup: keep the Codex CLI, desktop app, or VS Code entry point while switching the model provider to DeepSeek V4; quality, billing, and session grouping remain separate concerns.

DeepSeek now provides one-click and manual Codex setup: keep the Codex CLI, desktop app, or VS Code entry point while switching the model provider to DeepSeek V4; quality, billing, and session grouping remain separate concerns.

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