OpenAI expands the GPT-6 family with Sol and Luna with faster, cheaper models trained like Astra. 50% lower API pricing, near-Astra factuality/coding/computer use gains, better prompt caching (90% off cached reads), and alignment improvements. Live in ChatGPT Work, Codex, and via API.
GPT-6 Sol and Luna extend OpenAI's newest model family below Astra, trained the same way but tuned for speed and cost.
What makes it different: Sol beats Claude Opus 5 on Automation Bench at roughly 9% of the cost per task, and matches Claude Fable 5.1 on DeepSWE at about 80% lower cost. Both models also carry over Astra's alignment gains, including fewer misleading claims about their own coding work.
Key features:
50% lower API pricing than GPT-5.6 equivalents
Prompt caching improvements, 90% discount on cached input reads
Near-Astra factuality, coding, and computer-use performance
Who it's for: developers and teams running high-volume or long-running agent workflows who need frontier-level performance without frontier-level cost.
P.S. I hunt the latest and greatest launches in tech, SaaS and AI, follow to be notified →@rohanrecommends
About GPT-6 Sol & Luna on Product Hunt
“Frontier AI intelligence, now at half the price”
GPT-6 Sol & Luna launched on Product Hunt on September 27th, 2026 and earned 330 upvotes and 8 comments, earning #2 Product of the Day. OpenAI expands the GPT-6 family with Sol and Luna with faster, cheaper models trained like Astra. 50% lower API pricing, near-Astra factuality/coding/computer use gains, better prompt caching (90% off cached reads), and alignment improvements. Live in ChatGPT Work, Codex, and via API.
On the analytics side, GPT-6 Sol & Luna competes within API, Developer Tools and Artificial Intelligence — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how GPT-6 Sol & Luna performed against the three products that launched closest to it on the same day.
Who hunted GPT-6 Sol & Luna?
GPT-6 Sol & Luna was hunted by Rohan Chaubey. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Rohan Chaubey
GPT-6 Sol and Luna extend OpenAI's newest model family below Astra, trained the same way but tuned for speed and cost.
What makes it different: Sol beats Claude Opus 5 on Automation Bench at roughly 9% of the cost per task, and matches Claude Fable 5.1 on DeepSWE at about 80% lower cost. Both models also carry over Astra's alignment gains, including fewer misleading claims about their own coding work.
Key features:
50% lower API pricing than GPT-5.6 equivalents
Prompt caching improvements, 90% discount on cached input reads
Near-Astra factuality, coding, and computer-use performance
Who it's for: developers and teams running high-volume or long-running agent workflows who need frontier-level performance without frontier-level cost.
Try it via ChatGPT Work, Codex, or through the API
P.S. I hunt the latest and greatest launches in tech, SaaS and AI, follow to be notified → @rohanrecommends