https://www.heyuan110.com/tags/deepseek/Recent content in DeepSeek on Bruce on AI EngineeringHugoenTue, 15 Sep 2026 20:00:00 +0800https://www.heyuan110.com/posts/ai/2026-09-15-configuring-third-party-models-in-codex/Tue, 15 Sep 2026 20:00:00 +0800https://www.heyuan110.com/posts/ai/2026-09-15-configuring-third-party-models-in-codex/<p><img src="https://www.heyuan110.com/posts/ai/2026-09-15-configuring-third-party-models-in-codex/cover.webp" alt="Configuring Third-Party Models in OpenAI Codex" loading="lazy" decoding="async" fetchpriority="low" width="1200" height="630" /> </p> <p>Unlocking OpenAI Codex&rsquo;s capabilities with third-party models is the single most effective way to optimize your agentic coding workflows. By default, Codex is configured to talk directly to OpenAI&rsquo;s native API. However, for high-frequency development, the sheer volume of code ingested during multi-file edits, codebase analyses, and deep refactoring can rapidly drain your token budget. Swapping the backend to cost-effective alternatives like DeepSeek-V3 or highly specialized reasoning models like Claude 3.5 Sonnet / Fable 5 gives you the best of both worlds: Codex&rsquo;s elite agent loop running on the most cost-efficient intelligence available.</p>