# Step 5 Preview vs Trinity-Large-Preview

> Side-by-side benchmark comparison for Step 5 Preview and Trinity-Large-Preview across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/step-5-preview-vs-trinity-large-preview
- Last updated: September 21, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Step 5 Preview and Trinity-Large-Preview share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Trinity-Large-Preview has the lower published output-token price.
- Step 5 Preview has the larger published context window at 1M.

## Model Snapshot

| Property | Step 5 Preview | Trinity-Large-Preview |
|----------|----------|----------|
| Creator | StepFun | Arcee AI |
| Type | Pending | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 512K |
| Independent public score (not head-to-head) | null | 54.2 |
| Benchmarks Covered | 22 | 4 |
| Pricing (input/output) | $1.00 / $2.70 | $0.25 / $1.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Step 5 Preview public-lane score: Coming soon
- Trinity-Large-Preview public-lane score: Coming soon

| Benchmark | Step 5 Preview | Trinity-Large-Preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.0% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 33.30% | Coming soon | Coming soon |
| CyberGym | 84.7% | Coming soon | Coming soon |
| AutomationBench | 44.0% | Coming soon | Coming soon |
| Toolathlon-Verified | 74.1% | Coming soon | Coming soon |
| MCP Atlas | 85.6% | Coming soon | Coming soon |
| JobBench | 59.0% | Coming soon | Coming soon |
| APEX-Agents | 37.8% | Coming soon | Coming soon |
| DRACO | 83.3% | Coming soon | Coming soon |
| BrowseComp | 88.7% | Coming soon | Coming soon |
| Agents' Last Exam | 29.5% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Step 5 Preview public-lane score: Coming soon
- Trinity-Large-Preview public-lane score: Coming soon

| Benchmark | Step 5 Preview | Trinity-Large-Preview | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 67.7% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 85.0% | Coming soon | Coming soon |
| SciCode | 58.9% | Coming soon | Coming soon |
| ProgramBench | 80.5% | Coming soon | Coming soon |
| sweMarathon | 72.7% | Coming soon | Coming soon |
| MLS-Bench Lite | 40.5% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Step 5 Preview public-lane score: 78.5 (Unranked · 2 rankable rows)
- Trinity-Large-Preview public-lane score: Coming soon

| Benchmark | Step 5 Preview | Trinity-Large-Preview | Winner |
|-----------|-----------|-----------|--------|
| CritPt | 20.9% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Step 5 Preview public-lane score: 61.2 (#28/49)
- Trinity-Large-Preview public-lane score: Coming soon

| Benchmark | Step 5 Preview | Trinity-Large-Preview | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 60.3% | Coming soon | Coming soon |
| MMMU-Pro | 76% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Step 5 Preview public-lane score: Coming soon
- Trinity-Large-Preview public-lane score: Coming soon

| Benchmark | Step 5 Preview | Trinity-Large-Preview | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 93.5% | 63.3% | Step 5 Preview |
| HLE | 46.5% | Coming soon | Coming soon |
| MMLU | Coming soon | 87.2% | Coming soon |
| MMLU-Pro (Arcee) | Coming soon | 75.2% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Step 5 Preview public-lane score: Coming soon
- Trinity-Large-Preview public-lane score: Coming soon

| Benchmark | Step 5 Preview | Trinity-Large-Preview | Winner |
|-----------|-----------|-----------|--------|
| AIME25 (Arcee) | Coming soon | 24.0% | Coming soon |

## FAQ

### Is there enough evidence to pick between Step 5 Preview and Trinity-Large-Preview?

Not yet. The models share only 1 sourced benchmark row, 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

- [Step 5 Preview vs Trinity-Large-Thinking](/compare/step-5-preview-vs-trinity-large-thinking)
- [Trinity-Large-Preview vs Trinity-Large-Thinking](/compare/trinity-large-preview-vs-trinity-large-thinking)
- [Step 5 Preview vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-step-5-preview)
- [Trinity-Large-Preview vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-trinity-large-preview)

## Explore More

- [Step 5 Preview profile](/models/step-5-preview)
- [Trinity-Large-Preview profile](/models/trinity-large-preview)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)