Kev 27B
Kev 27B by Jared Palmer is a decision model: it answers typed questions with a probability for each allowed answer instead of generating text. It scores 58.8 on the Jev Decision Index (rank 13).
Pricing
No hosted price is listed. The weights are open: the cost is your own compute.
Specifications
- Provider
- Jared Palmer
- Parameters
- 28B
- Released
- Sep 2026
- Open weights
- Yes
- Question types
- Choice (one of N options), Score (ordered rubric), Yes / no
- Mechanism
- Decoder LM with a decision readout
- Backbone
- Qwen/Qwen3.8-27B
- Jev-compatible request
- Yes
- Runs on CPU
- No
- License
- apache-2.0
- Hugging Face
- jaredpalmer/kev-27b
Benchmarks
- Jev Decision IndexECE 0.022
- 58.8
Jev Decision Index: public 56.7, ECE 0.022, Brier 0.359. Lower ECE means its probabilities can be taken at face value.
Self-reported by the publisher
The model's own claims, often on its own sets or a self-run copy of a public suite. Not independently verified and never ranked alongside measured results.
- breadth-v1 test: 10 of 14 held-out public datasets (2,489 quSelf-reported
- 0.832
- hard-v1 + devtools-v1 + documents-v1 test (2,795 questions)Self-reported
- 0.889
- tasksource-heldout-v1 test: 17 of 24 held-out task familiesSelf-reported
- 0.795
- transfer-v4 test: six never-trained public sources and held-Self-reported
- 0.889
Speed & latency
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FAQ
How much does Kev 27B cost?
Kev 27B has no hosted price listed; its weights are open, so the cost is the compute you run it on.
What questions can Kev 27B answer?
Kev 27B answers choice (one of n options), score (ordered rubric), yes / no questions, returning a probability for each allowed answer.
Is Kev 27B well calibrated?
On the Jev Decision Index its expected calibration error (ECE) is 0.022; below about 0.05, a stated 80% confidence is right roughly 80% of the time.
Is Kev 27B open weight, and can it run on a CPU?
Yes, Kev 27B has open weights. It needs a GPU to run at useful speed.
Data as of 2026-10-14. Source: Metatext decision-model catalogue, 2026-10-14 (Jev Decision Index, Benchmark Heaven JevBench, Hugging Face). Pricing is per 1M tokens (USD); confirm with the provider before production use.