Caliber Flex 1B by OnePass. Decision-only model, exactly 1,000,000,000 parameters.
Fastino's open-weight decision model. A DeBERTa-v3-large encoder that scores label sets supplied at runtime, answers single-label, multi-label, yes/no and ordinal questions in one pass, and extracts spans and relations.
Decides
choice, noul, score
choice, score, noul, classify, extract, route
Architecture
llm
gliner2
Fine-tuned from
qwen/qwen3.5-0.8b-base
fastino/gliner2-large-v1
License
caliber-flex-non-commercial-1.0
apache-2.0
Availability
Open weights
Open weights + hosted API
Hosted by
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Fastino
Input price
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Decision accuracy
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60.2%
Calibration error
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Valid action rate
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Median latency
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38.3 ms
p95 latency
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Evaluation suite
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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 caliber-flex-1b and gliner2-5-decide?
caliber-flex-1b is from onepass and gliner2-5-decide from Fastino Labs. caliber-flex-1b has open weights you can download and run; gliner2-5-decide has open weights and a hosted API. Both answer choice, noul and score questions. Only gliner2-5-decide answers classify, extract and route. caliber-flex-1b is licensed other; gliner2-5-decide, apache-2.0.
Which is more accurate, caliber-flex-1b or gliner2-5-decide?
Only gliner2-5-decide publishes an accuracy figure (60.2% on Fastino fast-decisions suite (17 datasets)); caliber-flex-1b does not, so there is no comparison to make without your own test.
Which is cheaper, caliber-flex-1b or gliner2-5-decide?
caliber-flex-1b: Free (open weights). gliner2-5-decide: Hosted, price not published, or free to self-host. Open weights cost nothing per call beyond your own hardware.
Can I run caliber-flex-1b or gliner2-5-decide locally?
Yes, both: systemone pull onepass/caliber-flex-1b and systemone pull fastino-labs/gliner2-5-decide download the weights.
