
OpenAI 於 4 月推出 ChatGPT Images 2 後,時隔五個月再釋出強化版 Images 2.5,宣稱生成速度提升最多 50%,圖片細節更銳利、編輯更精準,並新增草圖功能與提示詞分享等特色,現已向所有 ChatGPT、ChatGPT Work 與 Codex 使用者開放桌面、手機及網頁版。
AI-generated summary
OpenAI 於今年 4 月首次推出 ChatGPT Images 2 圖片生成模型,此次為其五個月後的強化版更新。
ChatGPT Images 2.5最新圖片生成模型登場。(圖/路透社)
OpenAI今年4月才推出ChatGPT Images 2圖片生成模型,時隔5個月後,如今再推出強化版ChatGPT Images 2.5。這次除了畫面細節更銳利、生成速度更快,圖片編輯也變得更精準,也讓使用者在反覆修改圖片時有更高的自由度。
圖片生成更快、修改更直覺
OpenAI表示,Images 2.5能生成更自然的光線效果和更豐富的材質紋理,也更能保留參考照片中的人物與主體特徵。尤其在多輪編輯時,模型能更穩定地遵循使用者指令,降低「只想改一個地方,其他細節卻跟著跑掉」的情況。此外,相較Images 2.0,圖片生成延遲最多降低50%,不論第一次生成或後續反覆調整,都能更快看到結果。
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隨著ChatGPT Images 2.5登場,OpenAI也同步加入更多新功能,像是全新的Sketch(草圖)功能,可用手繪草圖告訴ChatGPT想要的構圖;圖片編輯也變得更直覺,能直接在圖片特定位置留下修改指示,不必再用文字費力描述「左邊那個」或「右上角那個」。此外,使用者也能分享自己用過的提示詞,讓其他人直接套用同一套創意玩法;範本功能也進一步強化。
ChatGPT Images 2.5強調生成速度更快。(圖/ChatGPT)
ChatGPT Images 2.5加入草圖功能,可直接畫給AI看。(圖/ChatGPT)
ChatGPT Images 2誰能用?
Images 2.5目前已向所有ChatGPT、ChatGPT Work和Codex使用者開放,支援桌面版、手機版和網頁版。
針對開發者,OpenAI也同步在API中推出兩款新模型。GPT-Image-2.5 Flare帶來與Images 2.5相同的圖片品質、編輯能力與速度提升,適合大多數應用情境;GPT-Image-2.5 Sunburst則鎖定需要更精細控制的高階創作與編輯工作,但圖片生成時間也會相對較長。
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