introducing gpt-5.4 mini: OpenAI (@OpenAI) GPT-5.4 mini is available today in ChatGPT, Codex, and the API. Optimized for coding, computer use, multimodal understanding, and subagents. And it’s 2x faster than GPT-5 mini. openai.com/index/introducing… — https://nitter.net/OpenAI/status/2033953592424731072#m

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