# Atria Dawn Preview vs Step 5 Preview

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

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

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Step 5 Preview if you want the stronger benchmark profile. Atria Dawn Preview only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Step 5 Preview leads overall 72 to 63.
- The biggest single benchmark swing is AutomationBench in Agentic, with scores of 53.8% and 44.0%.
- Atria Dawn Preview is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Step 5 Preview also has the larger context window at 1M.

## Model Snapshot

| Property | Atria Dawn Preview | Step 5 Preview |
|----------|----------|----------|
| Creator | Shanghai Artificial Intelligence Laboratory | StepFun |
| Type | Open Weight | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 13 | 22 |
| Pricing (input/output) | $0.00 / $0.00 | $1.00 / $2.70 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Atria Dawn Preview public-lane score: 58.1 (Estimated · #32/154)
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Atria Dawn Preview | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 53.8% | 44.0% | Atria Dawn Preview |
| BFCL v4 | 77.0% | Coming soon | Coming soon |
| CyberGym | 86.5% | 84.7% | Atria Dawn Preview |
| DeepSearchQA | 96.0% | Coming soon | Coming soon |
| BrowseComp | 92.5% | 88.7% | Atria Dawn Preview |
| skillsBench | 66.4% | Coming soon | Coming soon |
| MLE-Bench Lite | 86.2% | Coming soon | Coming soon |
| WideResearch | 81.9% | Coming soon | Coming soon |
| τ³-bench results | 41.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 78.3% | 85.0% | Step 5 Preview |
| JobBench | 50.3% | 59.0% | Step 5 Preview |
| Terminal-Bench 4.0 | Coming soon | 33.30% | Coming soon |
| Toolathlon-Verified | Coming soon | 74.1% | Coming soon |
| MCP Atlas | Coming soon | 85.6% | Coming soon |
| APEX-Agents | Coming soon | 37.8% | Coming soon |
| DRACO | Coming soon | 83.3% | Coming soon |
| Agents' Last Exam | Coming soon | 29.5% | Coming soon |

### Coding

- Winner: Coming soon
- Atria Dawn Preview public-lane score: 52.1 (Estimated · #52/156)
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Atria Dawn Preview | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 78.3% | 85.0% | Step 5 Preview |
| SWE-bench Pro | 59.6% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 67.7% | Coming soon |
| SciCode | Coming soon | 58.9% | Coming soon |
| ProgramBench | Coming soon | 80.5% | Coming soon |
| sweMarathon | Coming soon | 72.7% | Coming soon |
| MLS-Bench Lite | Coming soon | 40.5% | Coming soon |

### Reasoning

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Step 5 Preview public-lane score: 78.5 (Unranked · 2 rankable rows)

| Benchmark | Atria Dawn Preview | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 20.9% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Step 5 Preview public-lane score: 61.2 (#28/49)

| Benchmark | Atria Dawn Preview | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | Coming soon | 60.3% | Coming soon |
| MMMU-Pro | Coming soon | 76% | Coming soon |

### Knowledge

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Atria Dawn Preview | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | Coming soon | 93.5% | Coming soon |
| HLE | Coming soon | 46.5% | Coming soon |

## FAQ

### Which is better overall, Atria Dawn Preview or Step 5 Preview?

Step 5 Preview is ahead overall on BenchLM right now.

### How many benchmarks does Atria Dawn Preview cover on BenchLM?

Atria Dawn Preview currently has 13 sourced benchmark scores on BenchLM.

### How many benchmarks does Step 5 Preview cover on BenchLM?

Step 5 Preview currently has 22 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Atria Dawn Preview vs Claude Fable 5.1](/compare/atria-dawn-preview-vs-claude-fable-5-1)
- [Step 5 Preview vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-step-5-preview)
- [Atria Dawn Preview vs GPT-6 Astra](/compare/atria-dawn-preview-vs-gpt-6-astra)
- [Step 5 Preview vs GPT-6 Astra](/compare/gpt-6-astra-vs-step-5-preview)

## Explore More

- [Atria Dawn Preview profile](/models/atria-dawn-preview)
- [Step 5 Preview profile](/models/step-5-preview)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)