OpenAI推出GPT-6.1 Terra，价格减半性能更强
openai发布gpt-6.1 terra，一款中档ai模型，价格是其前身的一半，针对办公任务和自动化软件控制，性能更好。
openai has released gpt-6.1 terra, a mid-range ai model that halves the api prices of its predecessor gpt-5.6 terra. the model is built for office tasks and automated software control, combining fast visual reasoning with precise computer control and a natural writing style. benchmarks show gpt-6.1 terra offers a sharply better price-to-performance ratio and fewer hallucinations, with input tokens costing $1 per million and output tokens $5. the model is available for plus, pro, enterprise, and edu users in chatgpt work and codex, as well as through the api. analysts say the model sets a new benchmark for intelligence per dollar.