Jev Alternatives: Decision Models with the Same Request Shape

These models accept the same request as Jev, a state plus typed questions, so they can replace it with little or no code change. Models are ranked by their Full score on the Jev Decision Index, a third-party board of 37 benchmarks with private held-out sets, until scores from our own Metatext Decision Benchmark are published.

Ranked list (top 25)

#	Model	Decision Index	ECE	p50 latency	Per 1k decisions	Params
1	Fastino GLiDE Fastino	71.5	0.020	93 ms	$0.030	28B
2	vLLM-SR d3 (27B) vLLM Semantic RouterOpen weights	67.2	0.043	97 ms	—	26B
3	linne-oak-1-0 MISA-AICOREOpen weights	66.9	0.105	105 ms	—	31B
4	Decider 31B (NVFP4) MapikaOpen weights	66.0	0.024	72 ms	—	33B
5	bobcat-1.3 sanghwa-naOpen weights	64.8	0.102	64 ms	—	31B
6	amos-1-large Scira (mukaddamzaid)Open weights	64.8	0.032	148 ms	—	—
7	frontier-infra Jebadiah 27B v2.1 Frontier InfraOpen weights	64.4	0.056	303 ms	—	28B
8	Darwin-27B-ZTC FINAL_BenchOpen weights	63.0	0.045	104 ms	—	26B
9	KnowLine-35B-A3B-Gen1 PelaAIOpen weights	62.9	0.048	41 ms	—	36B
10	Perplexity Decider v1.1 (27B) PerplexityOpen weights	62.8	0.071	104 ms	$0.0040	28B
11	Torchcast Decision 27B Torchcast AIOpen weights	61.5	0.024	100 ms	—	28B
12	Quyet-1.0-Large chinhncOpen weights	60.8	0.078	105 ms	—	33B
13	OneJev1.5-27B OmniJevOpen weights	59.9	0.024	224 ms	—	27B
14	Shisa DE-2 (repeat) Shisa.AIOpen weights	59.8	0.207	57 ms	—	26B
15	linne-fern 1.0 (27B) MISA-AICOREOpen weights	59.6	0.079	108 ms	—	28B
16	Kev 27B Jared PalmerOpen weights	59.6	0.022	135 ms	—	28B
17	Xor 26B-A4B v1.1 Juspay TechnologiesOpen weights	59.4	0.068	110 ms	—	26B
18	Matilda Jev v1.5 MaincodeOpen weights	59.2	0.077	89 ms	—	26B
19	Eikos-27B caiovicentino1Open weights	58.8	0.057	130 ms	—	28B
20	RSI-Jev v6.1 VL 27B (effort auto) shgaoOpen weights	58.6	0.077	76 ms	—	28B
21	vLLM-SR Decision 2.0 Vega 27B vLLM Semantic RouterOpen weights	58.0	0.086	120 ms	—	28B
22	JEV-35B AutoTrust AI LabOpen weights	57.6	0.085	51 ms	—	36B
23	JEV-27B AutoTrust AI LabOpen weights	57.4	0.076	102 ms	—	28B
24	Surogate Rune 26B-A4B v3 SurogateOpen weights	56.4	0.120	121 ms	—	26B
25	SynACK Decide 26B-A4B v7 SkyPantherOpen weights	56.2	0.069	129 ms	—	26B

Scores, calibration (ECE) and latency from the Jev Decision Index; cost per 1,000 decisions at 200 input tokens each. Updated daily.

More decision-model rankings

Best decision model Best calibrated Cheapest Open weights Runs on CPU

Frequently asked questions

What is the best alternative to Jev?

Fastino GLiDE is the highest-ranked Jev-compatible model on the Jev Decision Index.

What does Jev-compatible mean?

The model accepts a state and a list of typed questions (choice, score, yes or no) and returns a probability for each allowed answer, the request shape Jev introduced.