Keep a recognizable character across AI images with clearer references, controlled prompts, sample testing, review, and targeted repairs.
同一角色换个角度或场景就变样，先检查参考图、提示词和生成条件。本文整理小样测试、逐张审核与局部修复的通用流程。
A developer troubleshooting guide to AI API 429 errors, request and token limits, bounded retries, and initial concurrency planning.
面向正在接入和排查 AI API 的开发者：先找出 429 的触发原因，再用队列、限流和有边界的重试恢复调用。
DeepSeek V4.1 Flash moves to a new 552B architecture with native vision, and DeepSeek is routing all V4 Pro traffic to it. Side-by-side tests show it beating V4 Pro on some coding and 3D tasks, though it is still less stable than flagship models on complex work.
DeepSeek V4.1 Flash 换用 552B 新架构、原生支持视觉理解，官方让它全面接替 V4 Pro。同题实测显示，它在编程和 3D 任务上部分超过 V4 Pro，但复杂任务稳定性仍不及旗舰。
OpenAI's GPT-Image-2.5 splits into Flare for speed and Sunburst for precision, cutting latency by up to 50% with unchanged API pricing. Eight head-to-head tests against GPT-Image-2 show modest quality gains; speed and multi-turn editing consistency are the real upgrades.
OpenAI 推出 GPT-Image-2.5，拆分为效率款 Flare 与精工款 Sunburst，生成延迟最高降低 50%，API 单价不变。8 组案例对比 GPT-Image-2：画质提升有限，速度与多轮编辑一致性才是真正的升级。
OpenAI launched GPT-6 Sol on the same day as Opus 5.5, cutting prices by 50%. Tested against GPT-5.6 Terra on the same prompts, Sol shows clear gains on complex coding tasks but only middling multimodal reasoning. Its biggest advantage is still price.
OpenAI 在 Opus 5.5 发布当天推出 GPT-6 Sol，定价直降 50%。同题对比 GPT-5.6 Terra，Sol 在复杂编程任务上提升明显，但多模态推理表现一般，最大的优势仍是价格。
Grok 4.7 matches Grok 4.6 on price and pitches itself at the price-performance frontier. In side-by-side tests against GPT-6 Sol it shines on complex long-running tasks such as an immersive digital museum, but its general capabilities and hidden token costs still need weighing.
Grok 4.7 与 Grok 4.6 同价，主打性价比前沿。同题对比 GPT-6 Sol，它在沉浸式数字博物馆等复杂长任务上表现突出，但通用能力与隐性 token 成本仍需权衡。
Haiku 5.5 matches GPT-6 Luna on price and makes a big leap over its predecessor. In side-by-side tests on the same prompts it leads overall in multimodal and coding tasks, though complex coding and long-horizon planning still call for a flagship model.
Haiku 5.5 定价与 GPT-6 Luna 持平，能力较上一代大幅跃升。同题实测中它在多模态和编程上整体占优，但复杂编程与长程规划仍要交给旗舰模型。
