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OpenAI launches GPT-6 Sol + Luna: Astra intelligence moves down the cost curve

This story is from 2026-09-22. It is preserved in the archive; the latest stories are on the live feed.

GPT-6 Sol and GPT-6 Luna launch today in ChatGPT Work and Codex for Plus, Pro, Business, Enterprise, and Edu, and they are also live in the API as gpt-6-sol and gpt-6-luna. TL;DR: GPT-6 Sol and Luna bring many of Astra’s advances in coding, factuality, computer use and agentic work into faster, muc…

Read the full story at r/OpenAI ↗

Timeline · 22 reports

  1. 2026-09-25 14:21 · AI Insider
    Meta Goes All In on Muse AI Agent at Connect 2026 With Avatars, Camera-Free Glasses and a Keychain Device
  2. 2026-09-25 05:48 · ThursdAI
    Opus 5.5 is your new workhorse! OpenAI ships GPT 6 Sol and Luna before DevDay and Meta goes all in on Muse! Your friday read is here
  3. 2026-09-25 00:41 · AlphaSignal
    Vals AI Finds Claude Opus 5.5 Beats GPT-6 Astra on Math Proofs
  4. 2026-09-24 15:53 · r/OpenAI
    GPT-6 Sol is NOT the replacement of GPT-5.6 Sol...
  5. 2026-09-24 14:18 · r/OpenAI
    Am I the only one who actually likes GPT-6 Sol and Luna?
  6. 2026-09-24 14:16 · r/ChatGPT
    Am I the only one who actually likes GPT-6 Sol and Luna?
  7. 2026-09-24 12:34 · Analytics Vidhya
    GPT-6 Sol and Luna: Near-Astra Performance at Half the Price?
  8. 2026-09-23 21:59 · r/OpenAI
    GPT‑6 Sol and Luna: Cheaper, but Worse Where It Matters
  9. 2026-09-23 20:50 · The AI Daily Brief
    Opus 5.5 vs GPT-6 Sol and Luna
  10. 2026-09-23 20:19 · Matthew Berman
    GPT-6 Sol and Luna Are HERE!
  11. 2026-09-23 18:22 · r/ChatGPTPro
    When are GPT-6 Sol and Luna coming to regular ChatGPT?
  12. 2026-09-23 17:33 · AI Business
    OpenAI takes AI price war to next level with GPT-6 Sol, Luna pricing
  13. 2026-09-23 14:37 · r/artificial
    GPT-6 Astra vs Claude Opus 5.5 — I compared them across 5 categories. Results are more split than the headlines suggest.Ran GPT-6 Astra and Claude Opus 5.5 head-to-head (coding, price, security, context). Opus 5.5 wins coding + value, Astra wins the frontier stuff.
  14. 2026-09-23 10:18 · r/ChatGPT
    When are GPT-6 Sol and Luna coming to regular ChatGPT?
  15. 2026-09-23 09:30 · The Neuron
    😺 GPT-6 Sol vs Claude Opus 5.5
  16. 2026-09-23 09:29 · r/huggingface
    Claude Opus 5.5 talks a LOT. GPT-6 Sol is basically the introvert of the two.
  17. 2026-09-23 00:20 · r/ChatGPTPro
    OpenAI just dropped GPT-6 Sol and Luna, and Sol is nearly matching Claude at 80% less cost
  18. 2026-09-22 23:46 · Simon Willison's Weblog
    Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war
  19. 2026-09-22 21:08 · TestingCatalog AI News
    OpenAI launches faster, cheaper GPT-6 Sol and Luna
  20. 2026-09-22 19:55 · The Neuron
    😺 GPT-6 Sol / Luna vs. Claude Opus 5.5 LIVE
  21. 2026-09-22 19:12 · r/OpenAI
    OpenAI launches GPT-6 Sol + Luna: Astra intelligence moves down the cost curve
  22. 2026-09-22 18:38 · Matthew Berman
    GPT-6 SOL AND LUNA ARE OUT!!!

More stories

  1. When are GPT-6 Sol and Luna coming to regular ChatGPT? — r/ChatGPT
  2. Deploy and manage coding agents at scale with the Unity Gateway CLI — Databricks Blog
  3. Need some help — r/AI_Agents
  4. Question about Wan 3 — r/StableDiffusion
  5. Claude vs ChatGPT vs Gemini for everyday use/work/homework NOT coding — r/ArtificialInteligence
  6. How to Customize Your AI Tools, From ChatGPT to Gemini and Claude — CNET AI
  7. I used Opus 5.5 and Astra to create this AI version of Pac-Man. — r/ClaudeAI
  8. One doubt in AI space — r/artificial

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