{"data":{"id":2421,"lang":"en","title":"OpenAI Launches GPT-6 Sol and Luna, Cutting API Prices in Half","summary":"OpenAI released GPT-6 Sol and Luna with permanent 50% API price cuts, fewer factual errors, and better agent-safety scores than their predecessors.","category":"ai","category_label":"AI","published_at":"2026-09-22T22:01:06Z","updated_at":"2026-09-22T22:01:06Z","url":"https://techtools.cz/tools/news/article/2421-openai-launches-gpt-6-sol-and-luna-cutting-api-prices-in-half","api_url":"https://techtools.cz/news-api/v1/articles/2421?lang=en","markdown_url":"https://techtools.cz/news-api/v1/articles/2421.md?lang=en","image_url":"https://images.ctfassets.net/jdtwqhzvc2n1/4xddeuK4KVWj1aEUoCama5/1e24b4668161c59dd1fa676cf23838ac/ChatGPT_Image_Sep_22__2026__02_00_07_PM.png","word_count":171,"reading_time_minutes":1,"sources":[{"url":"https://venturebeat.com/technology/openai-releases-gpt-6-sol-and-luna-models-slashing-api-costs-50-or-more","domain":"venturebeat.com"},{"url":"https://thenewstack.io/openai-gpt-6-sol-luna-release/","domain":"thenewstack.io"}],"translation":{"lang":"cs","id":2494,"title":"OpenAI spustil modely GPT-6 Sol a Luna, ceny API snížil o polovinu","url":"https://techtools.cz/tools/news/clanek/2494-openai-spustil-modely-gpt-6-sol-a-luna-ceny-api-snizil-o-polovinu","api_url":"https://techtools.cz/news-api/v1/articles/2494?lang=cs"},"content":"OpenAI released two new models, GPT-6 Sol and GPT-6 Luna, on September 22, just 19 days after its flagship GPT-6 Astra. The company is positioning them as workhorses for everyday enterprise tasks that do not need Astra's top-tier reasoning.\n\nGPT-6 Sol now costs $2/$10 per million input/output tokens, down from $4/$20 for GPT-5.6 Sol, matching Claude Sonnet 5 pricing. GPT-6 Luna drops to $0.10/$0.50 per million tokens. An OpenAI spokesperson confirmed the cuts are permanent list prices, not a limited promotion, made possible by inference and caching improvements alongside a 90% discount on cached input reads.\n\nOpenAI says GPT-6 Sol makes roughly half as many factual errors as its predecessor and scores better on agent-safety metrics such as deception and failure disclosure. Sol targets recurring complex work like code review and debugging, while Luna is aimed at high-volume summarization and extraction. Both are live in the API now and rolling out to ChatGPT Work and Codex subscribers, with Luna also reaching free users through the desktop app."}}