Loading comparison…
HEAD TO HEAD
Andy Zhang: ajev and onepass: caliber-flex-5b, compared on what they decide, where they run, what they cost and what their publishers report.
| Property | andy-zhang/ajev | onepass/caliber-flex-5b |
|---|---|---|
| Summary | An open Jev-style decision model by Andy Zhang: a LoRA adapter on Gemma 4 26B-A4B (also on Gemma 4 12B) that reads a state and returns a temperature-calibrated probability for every option of a yes/no, choice or score question in one forward pass. | Caliber Flex 5B by OnePass. Decision-only model, exactly 5,000,000,000 parameters. |
| Decides | choice, score, noul | choice, noul, score |
| Architecture | ajev | llm |
| Fine-tuned from | google/gemma-4-26b-a4b-it | qwen/qwen3.5-4b-base |
| License | apache-2.0 | caliber-flex-non-commercial-1.0 |
| Availability | Open weights | Open weights |
| Hosted by | — | — |
| Input price | — | — |
| Decision accuracy | — | — |
| Calibration error | — | — |
| Valid action rate | — | — |
| Median latency | 49 ms | — |
| p95 latency | — | — |
| Evaluation suite | Sequential requests, the maker's own measurement | — |
| Latest version | 2026.09 | 0.2.0 |
| Variants | — | Modelfile, merged, LICENSE |
| Size of latest version | 141.9 MB | 13.3 GB |
| Files | 3 | 17 |
| Downloads | 0 | 69 |
| Stars | 0 | 1 |
| Tags | system-one, gemma, lora, calibrated, 26b | decision-model, calibrated, qwen3_5, timesfm-distilled, onepass, gguf |
| Updated | Oct 7, 2026 | Oct 29, 2026 |
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.
ajev is from Andy Zhang and caliber-flex-5b from onepass. Both have open weights you can download and run. Both answer choice, score and noul questions. ajev is licensed apache-2.0; caliber-flex-5b, other.
Neither publishes an accuracy figure. Test both on your own labelled examples.
ajev: Free (open weights). caliber-flex-5b: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Yes, both: systemone pull andy-zhang/ajev and systemone pull onepass/caliber-flex-5b download the weights.