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Ultramarine 1 Flash, built on GLM-5.3 Flash, launches on Design Arena

AIDesign Arena announces that Ultramarine 1 Flash, from @paperinstr, is now available on its platform. The model is post-trained from GLM-5.3 Flash for professional knowledge work, improving on six benchmarks while using 6.5% fewer tokens.
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Ultramarine 1 Flash by @paperinstr is now available on Design Arena!

Built for professional knowledge work, Ultramarine 1 Flash improves on its GLM-5.3 Flash base model across six benchmarks while using 6.5% fewer tokens. It delivers strong performance on complex tasks at just $0.13 per task, offering a cost-efficient option for agentic workflows.

Congrats to the @paperinstr team on the launch!

Paper Instruments@paperinstr
post-trained glm 5.3 flash to understand american knowledge work.. give it a try!
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Original title: Ultramarine 1 Flash by @paperinstr is now available on Design Arena!

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AI agentsOpen-source ecosystemChina AIModel releasesEvals & benchmarks