Thinking Machines Lab releases Inkling, an open-weights multimodal model

Thinking Machines Lab has released Inkling, an open-weights multimodal model with 975 billion total parameters and 41 billion active parameters. The model is trained on 45 trillion tokens of text, images, audio, and video, and is available under the Apache-2.0 license. While not positioned as a frontier model, Inkling is designed as a strong base for fine-tuning on the company's Tinker platform, offering multimodal capabilities and efficient reasoning. A smaller version, Inkling-Small, with 12 billion active parameters, is also in development. AI

IMPACT Provides a new, capable open-weights multimodal model for researchers and developers to build upon and fine-tune.

RANK_REASON Open-weights model release from a lab that is not one of the top-tier frontier labs, but the model itself is significant. [lever_c_demoted from frontier_release: ic=2 ai=1.0]

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• Inkling
• Inkling-Small
• Thinking Machines
• Tinker
• Apache Software License 2.0
• Gemma 4
• Mira Murati
• mixture of experts
• NVIDIA Nemotron
• Thinking Machines Lab

• model release
• product

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