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GPT-5.3-Codex Programming Development Model Now Fully Accessible via API and Third-Party Integrations
2 day ago /
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Author：小编
On February 5, 2026, OpenAI unveiled the GPT-5.3-Codex programming development model, a cutting-edge innovation that seamlessly merges the programming prowess and reasoning abilities of its predecessor, GPT-5.2. This new iteration impresses with a 25% boost in operational speed and a remarkable reduction of over 50% in token consumption for various tasks. Initially, access to this model was restricted to ChatGPT's paid subscribers, who could leverage it within OpenAI Codex, CLI, IDE plugins, and the web-based version. Subsequently, from the following day, select developers were granted access through the API platform, further expanding its reach and utility.
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