# Gemini 3.8 Flash vs Open Jev JSON Canvas

> Side-by-side benchmark comparison for Gemini 3.8 Flash and Open Jev JSON Canvas across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-8-flash-vs-open-jev-json-canvas-joshuasp
- Last updated: October 8, 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 Gemini 3.8 Flash and Open Jev JSON Canvas.

## Summary

- Gemini 3.8 Flash and Open Jev JSON Canvas 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 | Gemini 3.8 Flash | Open Jev JSON Canvas |
|----------|----------|----------|
| Creator | Google | JoshuaSP |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | null |
| Independent public score (not head-to-head) | 72.88 | null |
| Benchmarks Covered | 26 | 2 |
| Pricing (input/output) | $0.75 / $3.75 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash public-lane score: 65.6 (Supported · #15/122)
- Open Jev JSON Canvas public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Open Jev JSON Canvas | Winner |
|-----------|-----------|-----------|--------|
| Finance Agent v2 | 61.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 89.4% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 19.10% | Coming soon | Coming soon |
| OSWorld 2.0 | 59.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 81.3% | Coming soon | Coming soon |
| ApprenticeBench | 24% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash public-lane score: 62.6 (Supported · #14/146)
- Open Jev JSON Canvas public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Open Jev JSON Canvas | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 73.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 89.4% | Coming soon | Coming soon |
| CursorBench 3.2 | 69.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 89.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 80.0% | Coming soon | Coming soon |
| FrontierSWE v2 | 19.6% | Coming soon | Coming soon |
| CursorBench 4.0 | 39.6% | Coming soon | Coming soon |
| Bug Hunt Bench | 18.0 fixes | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash public-lane score: 70.6 (#16/28)
- Open Jev JSON Canvas public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Open Jev JSON Canvas | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 98.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 89.2% | Coming soon | Coming soon |
| ARC-AGI-3 | 10.4% | Coming soon | Coming soon |
| JevBench 1.4 | Coming soon | 0.00 | Coming soon |
| JevBench 1.5 | Coming soon | 0.00 | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash public-lane score: 83.9 (#9/49)
- Open Jev JSON Canvas public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Open Jev JSON Canvas | Winner |
|-----------|-----------|-----------|--------|
| CharXiv w/o tools | 86.2% | Coming soon | Coming soon |
| LVBench | 87.1% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash public-lane score: 72.4 (Supported · #11/174)
- Open Jev JSON Canvas public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Open Jev JSON Canvas | Winner |
|-----------|-----------|-----------|--------|
| HLE-Verified | 54.9% | Coming soon | Coming soon |
| LABBench2 | 86.2% | Coming soon | Coming soon |
| BioMysteryBench (human-solvable) | 88.8% | Coming soon | Coming soon |
| BioMysteryBench (human-difficult) | 56.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 94.4% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 90.2% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash public-lane score: Coming soon
- Open Jev JSON Canvas public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Open Jev JSON Canvas | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 5.5% | Coming soon | Coming soon |

## FAQ

### Can I compare Gemini 3.8 Flash and Open Jev JSON Canvas 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

- [Gemini 3.8 Flash vs Gemini 3.8 Flash Cyber](/compare/gemini-3-8-flash-vs-gemini-3-8-flash-cyber)
- [Open Jev JSON Canvas vs Gemini 3.8 Flash Cyber](/compare/gemini-3-8-flash-cyber-vs-open-jev-json-canvas-joshuasp)
- [Gemini 3.8 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-8-flash)
- [Open Jev JSON Canvas vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-open-jev-json-canvas-joshuasp)

## Explore More

- [Gemini 3.8 Flash profile](/models/gemini-3-8-flash)
- [Open Jev JSON Canvas profile](/models/open-jev-json-canvas-joshuasp)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)