国产大模型 Step 5 Preview 正式全量开放，由阶跃星辰推出。其采用稀疏 MoE 架构，总参数 600B、仅激活 27B，性能对标 2.8 万亿参数 K3，性价比高；支持 100 万 Token 上下文和图文输入。API 与 Studio 已可用，10 月 15 日将发布完整权重，长任务自主运行表现突出。
中国电信9月17日发布星辰大模型Xing4.0-29B-A4B，总参数29B、激活4B，原生支持256K上下文并可扩展至512K。它是国内首个从训练芯片到推理部署全栈国产的百亿参数大模型，主打复杂工程任务。采用昇腾芯片训练、国产框架适配、自研架构、生态开源，实现底层算力到工具链的国产闭环。
智谱发布新模型GLM-5.3-FlashX，最高速度达每秒200 token，主打企业开发者体验。其前身GLM-5.3-Flash曾以“Ox Alpha”面向全球开发者，凭同尺寸领先智能表现积累口碑，调用量快速增长。为应对需求，智谱依托10万张国产芯片算力，持续加码基础设施与推理优化。
科大讯飞发布语音基座大模型Spark-Audio-1.0-Preview，基于全国产算力训练，降低供应链风险。模型支持文本和语音输入、文本输出，具备语音转写、多语言翻译、多方言识别、环境音识别、说话人识别、情感分析及音频问答等能力。
Openai
$2.8
输入tokens/百万
$11.2
输出tokens/百万
1k
上下文长度
Google
$0.49
$2.1
Xai
$1.4
$3.5
2k
Anthropic
$105
$525
200
$0.7
$7
$35
$17.5
$21
Alibaba
$1
$10
256
$2
$20
-
$8
$240
52
Bytedance
$1.2
$3.6
4
$3.9
$15.2
64
$0.8
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