gpt 5.6

OpenAI previewed GPT-5.6 Sol on June 26, 2026, as the flagship model in a three-model GPT-5.6 family, and early TerminalBench 2.1 results reported by Crypto Briefing place it well ahead of Anthropic’s Claude Opus 4.8 in agentic coding. The headline number is simple enough: 88.8 percent for Sol...

On June 26, 2026, Microsoft-backed OpenAI began a limited preview of GPT-5.6 Sol, Terra, and Luna, making its new flagship reasoning model available through the API and Codex only to a small group of trusted partners before a planned broader release. The headline capability story is impressive...

OpenAI released GPT-5.6 on June 26, 2026, as a three-model family called Sol, Terra, and Luna, but limited early access to a small group of trusted partners after a U.S. government request tied to cybersecurity risk. The launch is less a normal product announcement than a warning flare for the...

The Trump administration has asked OpenAI to limit the initial release of GPT-5.6 in June 2026 to a small group of government-approved partners, reportedly requiring access to be cleared customer by customer before a broader public rollout. That is not just a delay in the ChatGPT upgrade cycle...

OpenAI is reportedly preparing to launch GPT-5.6 as early as the week of June 22, 2026, with standard, Mini, and Pro variants that are said to improve coding, agent workflows, 3D generation, context length, efficiency, and pricing. The report, if accurate, points to a company trying to turn...

An unreleased OpenAI checkpoint identified online as GPT-5.6 “kindle-alpha” surfaced in developer and enthusiast discussions in early June 2026, apparently through Codex-related testing paths, with users reporting stronger reasoning, coding, and possibly vision behavior than earlier GPT-5-era...