OpenAI 發表 o3、o4-mini 推理模型與開源終端機工具 Codex CLI
Original: [AINews] OpenAI o3, o4-mini, and Codex CLI
OpenAI recently held a live stream and published a blog post to officially announce the new reasoning model o3 and the lightweight…
OpenAI 正式發表新一代推理模型 o3 與 o4-mini，強調透過 10 倍強化學習（RL）算力提升推理效率。o4-mini 不僅價格更便宜，在多項指標、視覺與工具調用能力上皆有顯著進步。此外，OpenAI 還驚喜推出了完全開源的終端機 AI 工具 Codex CLI，直接對標 Anthropic 的 Claude Code。
OpenAI recently held a live stream and published a blog post to officially announce the new reasoning model o3 and the lightweight reasoning model o4-mini, along with their corresponding System Cards. The central theme of this release is "scaling reinforcement learning (RL) compute by 10x," demonstrating that by investing more compute at inference time (test-time compute), models can exhibit significantly stronger thinking and logical reasoning capabilities.
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