# Nemotron Diffusion 8B (pst2154, optimized vLLM) vs Mistral Medium 3.5 128B

> Side-by-side benchmark comparison for Nemotron Diffusion 8B (pst2154, optimized vLLM) and Mistral Medium 3.5 128B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/jevbench-nemotron-diffusion-8b-vs-mistral-medium-3-5-128b
- 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 Nemotron Diffusion 8B (pst2154, optimized vLLM) and Mistral Medium 3.5 128B.

## Summary

- Nemotron Diffusion 8B (pst2154, optimized vLLM) and Mistral Medium 3.5 128B 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 | Nemotron Diffusion 8B (pst2154, optimized vLLM) | Mistral Medium 3.5 128B |
|----------|----------|----------|
| Creator | pst2154 | Mistral |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | null | 256K |
| Independent public score (not head-to-head) | null | 36.17 |
| Benchmarks Covered | 1 | 7 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $1.50 / $7.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Nemotron Diffusion 8B (pst2154, optimized vLLM) public-lane score: Coming soon
- Mistral Medium 3.5 128B public-lane score: 19.3 (Supported · #99/119)

| Benchmark | Nemotron Diffusion 8B (pst2154, optimized vLLM) | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | Coming soon | 91.4% | Coming soon |
| Gert Labs | Coming soon | 39.10% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 39.0% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Nemotron Diffusion 8B (pst2154, optimized vLLM) public-lane score: Coming soon
- Mistral Medium 3.5 128B public-lane score: 25.4 (Estimated · #105/144)

| Benchmark | Nemotron Diffusion 8B (pst2154, optimized vLLM) | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | Coming soon | 77.6% | Coming soon |
| SWE-bench (Vals) | Coming soon | 66.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Nemotron Diffusion 8B (pst2154, optimized vLLM) public-lane score: Coming soon
- Mistral Medium 3.5 128B public-lane score: 69.9 (Unranked · 2 rankable rows)

| Benchmark | Nemotron Diffusion 8B (pst2154, optimized vLLM) | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| JevBench 1.5 | 25.68 | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Nemotron Diffusion 8B (pst2154, optimized vLLM) public-lane score: Coming soon
- Mistral Medium 3.5 128B public-lane score: 56.7 (Unranked · 1 rankable row)

### Knowledge

- Winner: Insufficient shared evidence
- Nemotron Diffusion 8B (pst2154, optimized vLLM) public-lane score: Coming soon
- Mistral Medium 3.5 128B public-lane score: 32.9 (Supported · #125/170)

| Benchmark | Nemotron Diffusion 8B (pst2154, optimized vLLM) | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | Coming soon | 34.8% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 75.3% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Nemotron Diffusion 8B (pst2154, optimized vLLM) public-lane score: Coming soon
- Mistral Medium 3.5 128B public-lane score: 82.6 (#48/124)

## FAQ

### Can I compare Nemotron Diffusion 8B (pst2154, optimized vLLM) and Mistral Medium 3.5 128B 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

- [Nemotron Diffusion 8B (pst2154, optimized vLLM) vs GPT-6 Astra](/compare/gpt-6-astra-vs-jevbench-nemotron-diffusion-8b)
- [Mistral Medium 3.5 128B vs GPT-6 Astra](/compare/gpt-6-astra-vs-mistral-medium-3-5-128b)
- [Nemotron Diffusion 8B (pst2154, optimized vLLM) vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-jevbench-nemotron-diffusion-8b)
- [Mistral Medium 3.5 128B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mistral-medium-3-5-128b)

## Explore More

- [Nemotron Diffusion 8B (pst2154, optimized vLLM) profile](/models/jevbench-nemotron-diffusion-8b)
- [Mistral Medium 3.5 128B profile](/models/mistral-medium-3-5-128b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)