MapikaJared PalmerDecision matchup
Decider 4Bvs.Kev 4B
Which model makes better decisions?
Decider 4B does better in independent tests.
Independent testsJev Decision Index
Decider 4Bahead1 of 1
Kev 4B0 of 1
Popularityout of 100
Decider 4Bahead43
Kev 4B23
Weights and access
Decider 4Bopen, local
Kev 4Bopen, local
SizeParameters
Decider 4B4 B
Kev 4Bn/a
Pick Decider 4B for
Jev Decision Indexmore popular
Pick Kev 4B for
No clear edge
Shared tests
Independent evaluators and leaderboards only, the newest shared snapshot per evaluator. With 95 % ranges a lead counts when they do not overlap; for hit rates, when it holds in a 95 % test. Without any uncertainty figure at most “slightly ahead”.
Jev Decision Index
Decider 4B aheadDecider 4B is clearly ahead in 10 of 37 subtests and slightly in 7, Kev 4B in 3 clearly and slightly in 3. 14 are level.
POP909 · Decision Index 0.4.1
Decider 4B10.0
Kev 4B1.2
2,000 tasks, as of October 28, 2026
BPoMP · Decision Index 0.4.1
Decider 4B83.4
Kev 4B65.1
5,000 tasks, as of October 28, 2026
New Yorker · Decision Index 0.4.1
Decider 4B62.9
Kev 4B52.3
528 tasks, as of October 28, 2026
Show all 37 subtests
| Subtest | Decider 4B | Kev 4B | Verdict |
|---|---|---|---|
| POP909 · Decision Index 0.4.1 | 10.0 | 1.2 | Decider 4B ahead |
| BPoMP · Decision Index 0.4.1 | 83.4 | 65.1 | Decider 4B ahead |
| New Yorker · Decision Index 0.4.1 | 62.9 | 52.3 | Decider 4B ahead |
| HellaSwag · Decision Index 0.4.1 | 94.0 | 78.9 | Decider 4B ahead |
| ChessBench · Decision Index 0.4.1 | 10.5 | 8.9 | Decider 4B ahead |
| WinoGrande · Decision Index 0.4.1 | 80.7 | 70.2 | Decider 4B ahead |
| GSM8K · Decision Index 0.4.1 | 40.6 | 46.5 | Kev 4B ahead |
| When2Call · Decision Index 0.4.1 | 75.9 | 66.7 | Decider 4B ahead |
| API-Bank · Decision Index 0.4.1 | 60.4 | 53.3 | Decider 4B ahead |
| Humicroedit · Decision Index 0.4.1 | 59.7 | 54.4 | Decider 4B ahead |
| HoVer · Decision Index 0.4.1 | 56.3 | 59.7 | Kev 4B ahead |
| BFCL · Decision Index 0.4.1 | 88.0 | 93.1 | Kev 4B ahead |
| cfcolor · Decision Index 0.4.1 | 60.5 | 57.9 | Decider 4B ahead |
| ACOS · Decision Index 0.4.1 | 19.2 | 9.8 | Decider 4B slightly ahead |
| RAGTruth · Decision Index 0.4.1 | 52.2 | 67.5 | Kev 4B slightly ahead |
| ANLI · Decision Index 0.4.1 | 56.4 | 48.1 | Decider 4B slightly ahead |
| BRIGHT · Decision Index 0.4.1 | 45.5 | 39.0 | Decider 4B slightly ahead |
| CLINC150 · Decision Index 0.4.1 | 86.6 | 75.0 | Decider 4B slightly ahead |
| ContractNLI · Decision Index 0.4.1 | 72.3 | 64.4 | Decider 4B slightly ahead |
| iSarcasmEval · Decision Index 0.4.1 | 42.1 | 46.8 | Kev 4B slightly ahead |
| BANKING77 · Decision Index 0.4.1 | 74.7 | 82.9 | Kev 4B slightly ahead |
| Amazon ESCI · Decision Index 0.4.1 | 42.4 | 39.7 | Decider 4B slightly ahead |
| ToolRet · Decision Index 0.4.1 | 65.0 | 61.0 | Decider 4B slightly ahead |
| Home appliances · Decision Index 0.4.1 | 17.1 | 14.8 | level |
| CRUXEval · Decision Index 0.4.1 | 43.7 | 48.1 | level |
| SATA-Bench · Decision Index 0.4.1 | 31.6 | 28.8 | level |
| GPQA Diamond · Decision Index 0.4.1 | 41.3 | 37.8 | level |
| MuSR · Decision Index 0.4.1 | 53.7 | 56.3 | level |
| PhishNChips · Decision Index 0.4.1 | 57.8 | 55.3 | level |
| Habermas · Decision Index 0.4.1 | 40.6 | 42.0 | level |
| BBH · Decision Index 0.4.1 | 60.9 | 62.5 | level |
| VAST · Decision Index 0.4.1 | 53.5 | 52.4 | level |
| HLE · Decision Index 0.4.1 | 10.4 | 10.2 | level |
| MMLU-Pro · Decision Index 0.4.1 | 51.7 | 50.7 | level |
| FinEntity · Decision Index 0.4.1 | 86.0 | 87.1 | level |
| NLI4CT · Decision Index 0.4.1 | 73.7 | 74.6 | level |
| CLadder · Decision Index 0.4.1 | 63.3 | 63.1 | level |
Source · latest October 28, 2026
All data side by side
| Decider 4B | Kev 4B | |
|---|---|---|
| Kind | Standalone | Adapter |
| Developer | Mapika | Jared Palmer |
| Status | Open source | Open source |
| Released | n/a | September 20, 2026 |
| Weights | open | open |
| Runs locally | yes | yes |
| Parameters | 4 B | n/a |
| License | Apache-2.0 | Apache-2.0 for the adapter and head |
| Popularity (out of 100) | 43 | 23 |