GPT-6.1 Sol Ultrafast is rolling out today in the API, Codex, and ChatGPT Work. The announcement claims speeds up to 8 times faster than Sol Standard with near-Astra intelligence, and says the model now responds more quickly to real-time changes in direction.
Odyssey-3 predicts subsequent frames from earlier ones and incoming actions, allowing generated scenes to respond to movement. Its Flash version turns a text prompt into an explorable world that the source says anyone can try for free today. The Pro version has the highest reported Physics-IQ Verified video-to-video score, 66.1.
Preferred Networks has released PLaMo 3 Translate 31B, expanding language support from Japanese and English in the previous version to 53 languages and adding an online meeting translation mode covering 15 languages. PFN says its average score across four translation benchmarks exceeds those of GPT-6.1 Sol and GPT-6 Astra; input costs 14 yen per 100,000 characters.
OpenAI says GPT-6 Luna is rolling out to ChatGPT Free and Go users from October 8, while paid users are receiving GPT-6 Sol. The updated chat interface can generate interactive diagrams and tools for a question. OpenAI’s deployment safety report also shows Luna regressed from its predecessor on some safety evaluations involving minors.
Google has released Nano Banana 2.1, an image generation and editing model, and says it improves visual design, mask-based editing and subject consistency. Users can select and change part of an image without regenerating the whole picture. The model is rolling out gradually to the Gemini app, AI Mode in Google Search and other products.
GPT-6 Astra Ultrafast is now available in the OpenAI API and to eligible ChatGPT Work and Codex users. NVIDIA says it can generate tokens up to 8 times faster than Astra Standard mode; faster generation can shorten the wait during coding agents’ edit, test and debug cycles.
Bilibili's Index LLM team has made the 2B, 9B and 35B-A3B (preview) text model weights available on Hugging Face and ModelScope. The family supports translation instructions for terminology and formatting, and includes models for dubbing, translations with a specified syllable count, and long documents.
Meituan’s LongCat API platform has launched LongCat-2.5-Preview, with a focus on long-running tasks and multimodal capabilities. According to the official update log, the model adds image understanding and supports a 1 million-token context window; it has about 1.6 trillion total parameters and activates about 48 billion per inference.