# djev (Maisa, diffusion-gemma) vs Open-Jev 2B (Zefan Cai)

> Side-by-side benchmark comparison for djev (Maisa, diffusion-gemma) and Open-Jev 2B (Zefan Cai) across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/jevbench-djev-vs-jevbench-open-jev-zefan-2b
- Last updated: September 30, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: djev (Maisa, diffusion-gemma) and Open-Jev 2B (Zefan Cai) share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.

## Model Snapshot

| Property | djev (Maisa, diffusion-gemma) | Open-Jev 2B (Zefan Cai) |
|----------|----------|----------|
| Creator | Maisa (David Villalón) | Zefan Cai (@Zefan_Cai) |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | null | null |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 2 | 2 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Reasoning

- Winner: Insufficient shared evidence
- djev (Maisa, diffusion-gemma) public-lane score: Coming soon
- Open-Jev 2B (Zefan Cai) public-lane score: Coming soon

| Benchmark | djev (Maisa, diffusion-gemma) | Open-Jev 2B (Zefan Cai) | Winner |
|-----------|-----------|-----------|--------|
| JevBench 1.4 | 52.23 | 9.98 | djev (Maisa, diffusion-gemma) |
| JevBench 1.5 | 64.16 | 9.07 | djev (Maisa, diffusion-gemma) |

## FAQ

### Is there enough evidence to pick between djev (Maisa, diffusion-gemma) and Open-Jev 2B (Zefan Cai)?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [djev (Maisa, diffusion-gemma) vs GPT-6 Astra](/compare/gpt-6-astra-vs-jevbench-djev)
- [Open-Jev 2B (Zefan Cai) vs GPT-6 Astra](/compare/gpt-6-astra-vs-jevbench-open-jev-zefan-2b)
- [djev (Maisa, diffusion-gemma) vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-jevbench-djev)
- [Open-Jev 2B (Zefan Cai) vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-jevbench-open-jev-zefan-2b)

## Explore More

- [djev (Maisa, diffusion-gemma) profile](/models/jevbench-djev)
- [Open-Jev 2B (Zefan Cai) profile](/models/jevbench-open-jev-zefan-2b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)