Ultramarine 1 Flash: Fable-class work at $0.13/task

Name: Ultramarine 1 Flash: Fable-class work at $0.13/task
Uploaded: 2026-10-16T00:00:00+05:30
Description: Paper Instruments RL-trained open GLM-5.3 Flash for finance, law, consulting, and ops: +4.1 pts avg on six knowledge-work benches, 6.5% fewer tokens. Their PI suite scores 59.3 at $0.13/task vs Claude Fable 5 at $8.19. JobBench 62.9. Weights coming to Hugging Face.

Why it matters

Paper Instruments RL-trained open GLM-5.3 Flash for finance, law, consulting, and ops: +4.1 pts avg on six knowledge-work benches, 6.5% fewer tokens. Their PI suite scores 59.3 at $0.13/task vs Claude Fable 5 at $8.19. JobBench 62.9. Weights coming to Hugging Face.

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