{"version":1,"type":"story","url":"https://digestai.news/story/gpt-6-sol-and-astra-compared-on-price-speed-and-output-structure","json":"https://digestai.news/story/gpt-6-sol-and-astra-compared-on-price-speed-and-output-structure.json","markdown":"https://digestai.news/story/gpt-6-sol-and-astra-compared-on-price-speed-and-output-structure.md","slug":"gpt-6-sol-and-astra-compared-on-price-speed-and-output-structure","headline":"GPT-6 Sol and Astra compared on price, speed, and output structure","summary":"The article compares GPT-6 Sol and Astra, two models in OpenAI's GPT-6 series released on September 22, 2026, alongside Luna. Astra costs five times more than Sol per million tokens: $10 input/$50 output versus Sol's $2 input/$10 output. Third-party measurements from Artificial Analysis show Sol is more than twice as fast in output speed (116 vs 52 tokens/sec) and has a shorter time to first response (136 vs 352 seconds). In a short consultation test, both models produced similar responses in time and token use, but Astra's output was about 1.3 times longer with added structure like headings and daily breakdowns, while Sol was more concise. The author concludes that Sol is sufficient for daily tasks like coding, research, and writing, and recommends using Astra only for ambiguous, multi-step tasks requiring thorough completion. Luna is positioned for high-volume processing. The article notes that caching reduces reading costs by 90%, and that batch and flex processing are half price while fast mode is double. All models have a knowledge cutoff of April-May 2026.","keyPoints":["Astra costs 5x more than Sol: $10 input/$50 output vs $2 input/$10 output per 1M tokens","Sol is over twice as fast as Astra: 116 vs 52 tokens/sec output speed, 136 vs 352 sec first response","In short tests, Astra output was ~1.3x longer with added structure; Sol was more concise"],"whyItMatters":"Helps users choose between cost and performance in AI models, showing that higher price does not always mean better value for routine tasks, and clarifies when premium models are justified.","category":{"slug":"marketing","name":"Marketing & Small Business","url":"https://digestai.news/category/marketing"},"entities":{"companies":["OpenAI"],"models":["GPT-6 Sol","GPT-6 Astra","GPT-6 Luna"],"people":[]},"firstPublishedAt":"2026-09-25T19:18:00Z","updatedAt":"2026-09-25T19:18:00Z","sourceCount":1,"hasPrimarySource":false,"sources":[{"outlet":"note.com","title":"GPT-6 Sol vs. Astra: Which One Should You Use?","url":"https://note.com/nobu_0215/n/n13948ce9dd08?hl=en","publishedAt":"2026-09-25T19:18:00Z","type":"press","primary":false,"lead":true}],"sourceNotes":null,"discussions":[],"thread":{"title":"OpenAI Unveils GPT-6 Model Family","url":"https://digestai.news/thread/openai-and-anthropic-costs-drive-firms-toward-open-weight-ai-report-says","storyCount":3},"cite":{"text":"Digest AI, \"GPT-6 Sol and Astra compared on price, speed, and output structure\", 25 September 2026, https://digestai.news/story/gpt-6-sol-and-astra-compared-on-price-speed-and-output-structure","publisher":"Digest AI","title":"GPT-6 Sol and Astra compared on price, speed, and output structure","datePublished":"2026-09-25T19:18:00Z","url":"https://digestai.news/story/gpt-6-sol-and-astra-compared-on-price-speed-and-output-structure"},"generatedBy":"Written by Digest AI's editorial model from the linked sources; the sources are the record.","license":"Headlines, digests and key points are written by Digest AI and may be quoted with a link to the story page. Linked articles belong to their publishers. Terms: https://digestai.news/terms#reuse"}