Nimbus AI unveils Cortex-7, its most capable reasoning model yet
The new flagship pushes context windows to one million tokens and sets records on agentic planning benchmarks.

Nimbus AI today introduced Cortex-7, the latest generation of its flagship foundation model. The company says the model can sustain coherent reasoning across a one-million-token context window, a step change for long-horizon planning and multi-document analysis.
Early enterprise testers report strong results on agentic tasks, where the model chains together tool calls to complete workflows with minimal supervision. Nimbus positions Cortex-7 as the backbone for a new wave of autonomous business agents.
"We designed Cortex-7 to reason, not just to respond," said CEO Dr. Elena Voss. The model is available through the Nimbus API starting this week, with enterprise fine-tuning to follow.