# Atria Dawn Preview vs Composer 2

> Side-by-side benchmark comparison for Atria Dawn Preview and Composer 2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/atria-dawn-preview-vs-composer-2
- Last updated: September 14, 2026

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

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Atria Dawn Preview and Composer 2.

## Summary

- Atria Dawn Preview and Composer 2 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 | Atria Dawn Preview | Composer 2 |
|----------|----------|----------|
| Creator | Shanghai Artificial Intelligence Laboratory | Cursor |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 200K |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 13 | 5 |
| Pricing (input/output) | $0.00 / $0.00 | $0.50 / $2.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Atria Dawn Preview public-lane score: 57.9 (Estimated · #31/153)
- Composer 2 public-lane score: 49 (Estimated · #62/153)

| Benchmark | Atria Dawn Preview | Composer 2 | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 53.8% | Coming soon | Coming soon |
| BFCL v4 | 77.0% | Coming soon | Coming soon |
| CyberGym | 86.5% | Coming soon | Coming soon |
| DeepSearchQA | 96.0% | Coming soon | Coming soon |
| BrowseComp | 92.5% | Coming soon | Coming soon |
| 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% | Coming soon | Coming soon |
| JobBench | 50.3% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 61.7% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Atria Dawn Preview public-lane score: 51.6 (Estimated · #51/152)
- Composer 2 public-lane score: 49 (Estimated · #66/152)

| Benchmark | Atria Dawn Preview | Composer 2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 78.3% | Coming soon | Coming soon |
| SWE-bench Pro | 59.6% | Coming soon | Coming soon |
| SWE Multilingual | Coming soon | 73.7% | Coming soon |
| SWE-Rebench | Coming soon | 58% | Coming soon |
| React Native Evals | Coming soon | 96.1% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 61.7% | Coming soon |

## FAQ

### Can I compare Atria Dawn Preview and Composer 2 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

- [Atria Dawn Preview vs Composer 2.5](/compare/atria-dawn-preview-vs-composer-2-5)
- [Composer 2 vs Composer 2.5](/compare/composer-2-vs-composer-2-5)
- [Atria Dawn Preview vs Composer 2 Fast](/compare/atria-dawn-preview-vs-composer-2-fast)
- [Composer 2 vs Composer 2 Fast](/compare/composer-2-vs-composer-2-fast)

## Explore More

- [Atria Dawn Preview profile](/models/atria-dawn-preview)
- [Composer 2 profile](/models/composer-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)