An open family of System One models. A LoRA adapter plus a pointer head on a frozen Qwen base returns a distribution per typed question in one forward pass, serves TypeSafe's /v1/systemone contract, and ships a fitted temperature with every checkpoint.
meraGPT's hosted decision model (state-decider-1). Answers yes/no, choice and rubric-score questions over one state as calibrated distributions in a single pass, on the System One schema, so the typesafe-sdk works by changing its base URL.
Decides
choice, score, noul, classify, route
choice, score, noul, classify, route
Architecture
kev
state-decider
Fine-tuned from
qwen/qwen3.5-4b-base
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License
apache-2.0
proprietary
Availability
Open weights
Hosted API
Hosted by
—
meraGPT
Input price
—
$0.030/MTok
Decision accuracy
83.8%
76.8%
Calibration error
0.042
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Valid action rate
—
—
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 kev and state-decider-1?
kev is from Jared Palmer and state-decider-1 from meraGPT. kev has open weights you can download and run; state-decider-1 is only available as a hosted API. Both answer choice, score, noul, classify and route questions. kev reads up to 8K tokens of state, against 4K tokens for state-decider-1. kev is licensed apache-2.0; state-decider-1, proprietary.
Which is more accurate, kev or state-decider-1?
They report on different suites — kev 83.8% on transfer-v4 (locked, out of domain), state-decider-1 76.8% on typed-decisions benchmark (400 cases, 2,000 decisions; teacher-ensemble references), single run — so the numbers do not rank them. Test both on your own labelled examples.
Which is cheaper, kev or state-decider-1?
kev: Free (open weights). state-decider-1: $0.03 / $0 per 1M. Open weights cost nothing per call beyond your own hardware.
Can I run kev or state-decider-1 locally?
kev yes — systemone pull jared-palmer/kev downloads its weights. The other is only served as a hosted API.
Evaluation suite
transfer-v4 (locked, out of domain)
typed-decisions benchmark (400 cases, 2,000 decisions; teacher-ensemble references), single run
