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Jovan Chan
Jovan Chan

Posted on • Originally published at runaihome.com

ollama launch codex-app sets wire_api=responses for local Fix 2026

This article was originally published on runaihome.com

Problem Statement

ollama launch codex-app incorrectly sets wire_api = "responses" in both the [model_providers.custom] and [model_providers.ollama-launch-codex-app] sections of the Ollama configuration. The Responses API endpoint (/v1/responses) does not correctly enumerate or communicate with local Ollama models, resulting in a blank model list and connection failures in Codex. This bug affects Ollama versions 0.1.35 through 0.3.1 when integrating with Codex.

Fix 1: Manual Configuration Edit

Edit the Ollama config file at

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