OpenAI GPT-5.6 Launch

OpenAI released GPT-5.6, a new model suite (Sol, Terra, Luna) with improved coding, cybersecurity, and biology skills, priced at $5/$30 per million tokens, shortly after delaying its next model due to US regulatory concerns.

One continuously updated timeline instead of dozens of separate articles. New developments are appended as the story evolves.

1. AnnouncementJun 26, 2026, 05:00 PM

   OpenAI unveils GPT-5.6 model suite with Sol, Terra, and Luna amid US AI regulatory delays

   OpenAI released GPT-5.6, a new model suite (Sol, Terra, Luna) with improved coding, cybersecurity, and biology skills, priced at $5/$30 per million tokens, shortly after delaying its next model due to US regulatory concerns.

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2. 2 weeks later
   ReleaseJul 8, 2026, 08:00 AM

   OpenAI releases GPT-5.6 after US government lifts delay, outperforming Anthropic’s model in coding benchmarks at half the cost.

   OpenAI’s GPT-5.6 launches Thursday following a US government-imposed delay, now outperforming Anthropic’s Claude Mythos 5 in coding benchmarks at half the cost.

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3. 1 day later
   UpdateJul 9, 2026, 10:00 AM

   OpenAI releases GPT-5.6 with enhanced intelligence and cost efficiency for scalable AI applications.

   OpenAI has unveiled GPT-5.6, a major update to its flagship model, promising higher intelligence per token and improved cost efficiency for demanding tasks.

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4. 7 hours later
   AnnouncementJul 9, 2026, 05:00 PM

   OpenAI receives US government approval to publicly release GPT-5.6 and launches ChatGPT Work, an AI agent for non-technical users.

   OpenAI has received US government approval to publicly release GPT-5.6, following a limited preview restricted to approved organizations. The company also introduced ChatGPT Work, an AI agent combining ChatGPT and Codex for non-technical users.

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5. 3 hours later
   AnnouncementJul 9, 2026, 08:26 PM

   OpenAI introduces GPT-5.6 and ChatGPT Work to challenge Anthropic on cost, speed, and productivity.

   OpenAI unveils GPT-5.6 and ChatGPT Work, positioning them as faster and cheaper alternatives to Anthropic's models while targeting productivity gains.

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6. 20 min later
   ReleaseJul 9, 2026, 08:45 PM

   OpenAI releases GPT-5.6 with three tiers and programmatic tool calling, setting new benchmarks in AI performance and efficiency.

   OpenAI released GPT-5.6 on July 9, 2026, featuring three pricing tiers and a new programmatic tool calling feature. Sol leads with the highest performance benchmarks.

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7. 2 hours later
   AnnouncementJul 9, 2026, 10:24 PM

   OpenAI announces GPT-5.6 as part of its new model family

   OpenAI introduced GPT-5.6, the latest model in its new family, promising enhancements in language understanding and cybersecurity applications.

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8. 4 days later
   AnnouncementJul 13, 2026, 09:01 PM

   OpenAI's GPT‑5.6 Sol, Terra, and Luna are now generally available on Amazon Bedrock

   OpenAI has made its GPT-5.6 Sol, Terra, and Luna models generally available through Amazon Bedrock, enabling high‑performance inference on AWS.

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