MapikaSupersonic LabsDecision matchup
Decider 2Bvs.Julia 1
Which model makes better decisions?
Decider 2B does better in independent tests, while Julia 1 is much smaller.
Pick Decider 2B for
Pick Julia 1 for
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 2B aheadDecider 2B is clearly ahead in 19 of 37 subtests and slightly in 12, Julia 1 in 0 clearly and slightly in 1. 5 are level.
SATA-Bench · Decision Index 0.4.1
1,650 tasks, as of October 28, 2026
HellaSwag · Decision Index 0.4.1
10,042 tasks, as of October 28, 2026
MMLU-Pro · Decision Index 0.4.1
12,032 tasks, as of October 28, 2026
Show all 37 subtests
| Subtest | Decider 2B | Julia 1 | Verdict |
|---|---|---|---|
| SATA-Bench · Decision Index 0.4.1 | 24.7 | 1.0 | Decider 2B ahead |
| HellaSwag · Decision Index 0.4.1 | 85.8 | 29.9 | Decider 2B ahead |
| MMLU-Pro · Decision Index 0.4.1 | 37.6 | 14.7 | Decider 2B ahead |
| When2Call · Decision Index 0.4.1 | 54.7 | 23.6 | Decider 2B ahead |
| BFCL · Decision Index 0.4.1 | 82.9 | 37.5 | Decider 2B ahead |
| New Yorker · Decision Index 0.4.1 | 44.7 | 23.5 | Decider 2B ahead |
| API-Bank · Decision Index 0.4.1 | 31.7 | 18.3 | Decider 2B ahead |
| BBH · Decision Index 0.4.1 | 51.0 | 33.8 | Decider 2B ahead |
| GPQA Diamond · Decision Index 0.4.1 | 36.2 | 25.5 | Decider 2B ahead |
| MuSR · Decision Index 0.4.1 | 54.9 | 39.0 | Decider 2B ahead |
| GSM8K · Decision Index 0.4.1 | 23.1 | 16.9 | Decider 2B ahead |
| WinoGrande · Decision Index 0.4.1 | 67.7 | 50.7 | Decider 2B ahead |
| BPoMP · Decision Index 0.4.1 | 64.9 | 48.8 | Decider 2B ahead |
| ChessBench · Decision Index 0.4.1 | 9.9 | 7.5 | Decider 2B ahead |
| Humicroedit · Decision Index 0.4.1 | 59.9 | 48.3 | Decider 2B ahead |
| Habermas · Decision Index 0.4.1 | 42.2 | 35.4 | Decider 2B ahead |
| HoVer · Decision Index 0.4.1 | 59.1 | 50.3 | Decider 2B ahead |
| CLadder · Decision Index 0.4.1 | 57.3 | 50.2 | Decider 2B ahead |
| cfcolor · Decision Index 0.4.1 | 57.0 | 50.4 | Decider 2B ahead |
| CLINC150 · Decision Index 0.4.1 | 73.7 | 12.3 | Decider 2B slightly ahead |
| ToolRet · Decision Index 0.4.1 | 63.1 | 13.6 | Decider 2B slightly ahead |
| BRIGHT · Decision Index 0.4.1 | 37.1 | 9.1 | Decider 2B slightly ahead |
| iSarcasmEval · Decision Index 0.4.1 | 22.4 | 6.5 | Decider 2B slightly ahead |
| ACOS · Decision Index 0.4.1 | 7.9 | 3.1 | Decider 2B slightly ahead |
| FinEntity · Decision Index 0.4.1 | 76.1 | 32.8 | Decider 2B slightly ahead |
| ContractNLI · Decision Index 0.4.1 | 63.4 | 31.8 | Decider 2B slightly ahead |
| RAGTruth · Decision Index 0.4.1 | 28.3 | 52.0 | Julia 1 slightly ahead |
| ANLI · Decision Index 0.4.1 | 49.4 | 28.6 | Decider 2B slightly ahead |
| BANKING77 · Decision Index 0.4.1 | 72.8 | 42.6 | Decider 2B slightly ahead |
| Amazon ESCI · Decision Index 0.4.1 | 34.7 | 20.6 | Decider 2B slightly ahead |
| VAST · Decision Index 0.4.1 | 51.0 | 32.9 | Decider 2B slightly ahead |
| NLI4CT · Decision Index 0.4.1 | 65.5 | 49.7 | Decider 2B slightly ahead |
| Home appliances · Decision Index 0.4.1 | 3.4 | 0.0 | level |
| POP909 · Decision Index 0.4.1 | 0.3 | 0.2 | level |
| HLE · Decision Index 0.4.1 | 12.0 | 14.4 | level |
| CRUXEval · Decision Index 0.4.1 | 33.0 | 38.1 | level |
| PhishNChips · Decision Index 0.4.1 | 50.1 | 49.9 | level |
Source · latest October 28, 2026
DecideBench
Decider 2B aheadDecider 2B is clearly ahead in 7 of 10 subtests, Julia 1 in none. 3 are level.
DecideBench pair accuracy
200 tasks, as of October 18, 2026
DecideBench review_sentiment accuracy
50 tasks, as of October 18, 2026
DecideBench ticket_triage accuracy
50 tasks, as of October 18, 2026
Show all 10 subtests
| Subtest | Decider 2B | Julia 1 | Verdict |
|---|---|---|---|
| DecideBench pair accuracy | 41.0 % | 8.0 % | Decider 2B ahead |
| DecideBench review_sentiment accuracy | 70.0 % | 22.0 % | Decider 2B ahead |
| DecideBench ticket_triage accuracy | 64.0 % | 34.0 % | Decider 2B ahead |
| DecideBench overall accuracy | 63.2 % | 34.8 % | Decider 2B ahead |
| DecideBench support_intent accuracy | 96.0 % | 54.0 % | Decider 2B ahead |
| DecideBench content_moderation accuracy | 66.0 % | 38.0 % | Decider 2B ahead |
| DecideBench agent_routing accuracy | 66.0 % | 40.0 % | Decider 2B ahead |
| DecideBench claim_support accuracy | 42.0 % | 24.0 % | level |
| DecideBench returns_policy accuracy | 46.0 % | 28.0 % | level |
| DecideBench action_review accuracy | 56.0 % | 38.0 % | level |
Source · latest October 18, 2026
All data side by side
| Decider 2B | Julia 1 | |
|---|---|---|
| Kind | Standalone | Classifier |
| Developer | Mapika | Supersonic Labs |
| Status | Open source | Open source |
| Weights | open | open |
| Runs locally | yes | yes |
| Parameters | 1.9 B | 0.14 B |
| License | Apache-2.0 | Apache-2.0 |
| Popularity (out of 100) | 52 | 39 |