# kev 4B (research preview) vs LFM2.5-VL-450M-Extract

> Side-by-side benchmark comparison for kev 4B (research preview) and LFM2.5-VL-450M-Extract across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/jevbench-kev-4b-vs-lfm2-5-vl-450m-extract
- Last updated: September 30, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for kev 4B (research preview) and LFM2.5-VL-450M-Extract.

## Summary

- kev 4B (research preview) and LFM2.5-VL-450M-Extract do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | kev 4B (research preview) | LFM2.5-VL-450M-Extract |
|----------|----------|----------|
| Creator | Jared Palmer | LiquidAI |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | null | 128K |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 2 | 3 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | N/A |

## Category Breakdown

### Reasoning

- Winner: Insufficient shared evidence
- kev 4B (research preview) public-lane score: Coming soon
- LFM2.5-VL-450M-Extract public-lane score: Coming soon

| Benchmark | kev 4B (research preview) | LFM2.5-VL-450M-Extract | Winner |
|-----------|-----------|-----------|--------|
| JevBench 1.4 | 36.14 | Coming soon | Coming soon |
| JevBench 1.5 | 38.07 | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- kev 4B (research preview) public-lane score: Coming soon
- LFM2.5-VL-450M-Extract public-lane score: Coming soon

| Benchmark | kev 4B (research preview) | LFM2.5-VL-450M-Extract | Winner |
|-----------|-----------|-----------|--------|
| Liquid Extract JSON Validity | Coming soon | 98.9% | Coming soon |
| Liquid Extract F1 | Coming soon | 98.8% | Coming soon |
| Liquid Extract VLM Judge | Coming soon | 84.5% | Coming soon |

## FAQ

### Can I compare kev 4B (research preview) and LFM2.5-VL-450M-Extract on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [kev 4B (research preview) vs LFM2.5-VL-1.6B-Extract](/compare/jevbench-kev-4b-vs-lfm2-5-vl-1-6b-extract)
- [LFM2.5-VL-450M-Extract vs LFM2.5-VL-1.6B-Extract](/compare/lfm2-5-vl-1-6b-extract-vs-lfm2-5-vl-450m-extract)
- [kev 4B (research preview) vs GPT-6 Astra](/compare/gpt-6-astra-vs-jevbench-kev-4b)
- [LFM2.5-VL-450M-Extract vs GPT-6 Astra](/compare/gpt-6-astra-vs-lfm2-5-vl-450m-extract)

## Explore More

- [kev 4B (research preview) profile](/models/jevbench-kev-4b)
- [LFM2.5-VL-450M-Extract profile](/models/lfm2-5-vl-450m-extract)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)