Liquid AI's first decision model, served only through the Liquid API. Returns Choice, Score and Noul answers with probability distributions and zero output tokens, on the /v1/systemone request shape used by TypeSafe's SDK.
Invergent's decision model for text and images. A fine-tune of Gemma-4-26B-A4B (about 4B parameters active per token) that answers Choice, Noul and Score questions, with an optional thinking mode for harder questions.
Decides
choice, score, noul, classify, route
choice, score, noul, classify, route
Architecture
d1
rune
Fine-tuned from
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google/gemma-4-26b-a4b-it
License
proprietary
apache-2.0
Availability
Hosted API
Open weights + hosted API
Hosted by
Liquid AI
Invergent
Input price
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Decision accuracy
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Calibration error
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Valid action rate
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Median latency
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p95 latency
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Figures are from each model’s manifest; accuracy and latency are what the publishers report, on their own suites and hardware. Add a third model.
Questions
What is the difference between d1 and rune?
d1 is from Liquid AI and rune from Surogate (Invergent). d1 is only available as a hosted API; rune has open weights and a hosted API. Both answer choice, score, noul, classify and route questions. d1 is licensed proprietary; rune, apache-2.0.
Which is more accurate, d1 or rune?
Neither publishes an accuracy figure. Test both on your own labelled examples.
Which is cheaper, d1 or rune?
d1: Hosted, price not published. rune: Hosted, price not published, or free to self-host. Open weights cost nothing per call beyond your own hardware.
Can I run d1 or rune locally?
rune yes — systemone pull surogate/rune downloads its weights. The other is only served as a hosted API.
