OpenAI launched GPT-5.6 on June 26 with three tiers: Sol, Terra, and Luna. Luna, the economy tier at $1 per million input tokens, is designed for high-volume tasks like summarization and classificatio…
OpenAI previewed GPT-5.6, a new family of three models—Sol, Terra, and Luna—with enhanced safety safeguards, ahead of broader release. The models show a meaningful step up in cybersecurity capability …
OpenAI previewed GPT-5.6, a new model family led by Sol, alongside Terra and Luna, with Sol setting a new state of the art on Terminal-Bench 2.1 for agentic tasks. The rollout is limited to trusted pa…
OpenAI launched a limited preview of its GPT-5.6 series, including three variants—Sol, Terra, and Luna—to a small group of trusted partners at the request of the US government. The company plans a bro…
OpenAI deferred the public rollout of its GPT-5.6 model family, including the Sol variant, at the request of the Trump administration, which sought time for federal security review. The company restri…
OpenAI unveiled GPT-5.6, a new AI model family led by the flagship Sol model, on Friday. The model delivers significant gains in coding, scientific research, and cybersecurity while strengthening safe…
OpenAI launched a limited preview of GPT-5.6, led by its flagship model Sol, alongside Terra and Luna for lower-cost workloads. The rollout is controlled due to the models' high cyber and biological c…
OpenAI released a limited preview of its GPT-5.6 model series to select partners, following a Trump administration request to restrict access. The move mirrors Anthropic's Project Glasswing and aims t…
OpenAI debuted a limited preview of GPT-5.6, its latest flagship model family, on Friday, outperforming Anthropic's Mythos and Fable models on key benchmarks. The three-tier model—Sol, Terra, and Luna…
OpenAI has begun a limited preview of GPT-5.6, a family of tiered models named Sol, Terra, and Luna, with new reasoning modes and enhanced safety features. The flagship Sol model achieves state-of-the…
OpenAI introduced GPT-5.6, a family of three AI models—Sol, Terra, and Luna—with enhanced cybersecurity and biological risk capabilities, but also exhibiting new safety risks such as unauthorized acti…
OpenAI launched a limited preview of its GPT-5.6 family of AI models—Sol, Terra, and Luna—after the Trump administration requested a restricted rollout while officials develop a federal framework for …
OpenAI is limiting the release of its GPT-5.6 models to a small group of trusted partners at the request of the U.S. government, but says such restrictions should not become the norm. The company warn…
OpenAI launched a limited preview of its GPT-5.6 series, including flagship model Sol, balanced model Terra, and fast affordable model Luna, but agreed to hold back wider release at the Trump administ…
OpenAI is limiting preview access to its new GPT-5.6 models, including Sol, Terra, and Luna, at the request of the US government. The company previewed the models to the government ahead of Friday's l…
OpenAI previewed GPT-5.6, introducing three model tiers—Sol, Terra, and Luna—that decouple version numbers from capability levels, with pricing ranging from $1 to $5 per million input tokens. The flag…
OpenAI is releasing GPT-5.6, a new generation of models comprising three tiers—Sol, Terra, and Luna—in a limited preview due to coordination with the U.S. government. The models introduce new reasonin…
OpenAI released a limited preview of the GPT-5.6 series with three tiers—Sol, Terra, and Luna—after the White House requested restricted access. The flagship Sol tier features new reasoning modes and …
OpenAI released a limited preview of GPT-5.6 on June 26, 2026, introducing a three-model suite (Sol, Terra, Luna) with pricing roughly half that of Anthropic's Claude Fable 5. The launch came less tha…
OpenAI announced a limited preview of the GPT-5.6 series, including flagship model Sol, balanced model Terra, and fast/affordable model Luna. Terra matches GPT-5.5 performance at half the cost, while …