Paper Instruments launches Ultramarine 1 Flash, beating frontier models at up to 60x lower cost
baseten · x · 2026-10-29
Paper Instruments released Ultramarine 1 Flash, an agentic reasoning model for professional work in finance, law, consulting, and operations, served via Baseten.
- 320B-A18B MoE, text/image/video input, modified MIT license; based on GLM-5.3 Flash and trained with large-scale RL using task-specific rubrics
- Training spans 19 professional practice areas and 88 environment types, including document-heavy workflows and business system interactions
- Paired with an agent harness, tools, and code execution, it can produce Excel workbooks, PowerPoint decks, and Word documents
- Claims outscores on JobBench and FrontierFinance over Claude Fable 5, GPT-5.6 Sol, Gemini 3.8 Flash, and DeepSeek V4.1 Flash at up to 60x lower cost
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