# Atria Dawn Preview vs Claude Opus 4.5

> Side-by-side benchmark comparison for Atria Dawn Preview and Claude Opus 4.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/atria-dawn-preview-vs-claude-opus-4-5
- Last updated: September 14, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Atria Dawn Preview if you want the stronger benchmark profile. Claude Opus 4.5 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Atria Dawn Preview leads overall 63 to 58.47.
- The clearest category separation is in agentic, where the averages are 57.9 for Atria Dawn Preview and 43.2 for Claude Opus 4.5.
- The biggest single benchmark swing is CyberGym in Agentic, with scores of 86.5% and 50.6%.
- Atria Dawn Preview is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Atria Dawn Preview also has the larger context window at 256K.

## Model Snapshot

| Property | Atria Dawn Preview | Claude Opus 4.5 |
|----------|----------|----------|
| Creator | Shanghai Artificial Intelligence Laboratory | Anthropic |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 256K | 200K |
| Overall Score | null | 58.47 |
| Benchmarks Covered | 13 | 45 |
| Pricing (input/output) | $0.00 / $0.00 | $5.00 / $25.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Atria Dawn Preview public-lane score: 57.9 (Estimated · #31/153)
- Claude Opus 4.5 public-lane score: 43.2 (Estimated · #99/153)

| Benchmark | Atria Dawn Preview | Claude Opus 4.5 | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 53.8% | Coming soon | Coming soon |
| BFCL v4 | 77.0% | Coming soon | Coming soon |
| CyberGym | 86.5% | 50.6% | Atria Dawn Preview |
| 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% | 76.4% | Atria Dawn Preview |
| τ³-bench results | 41.2% | 70.2% | Claude Opus 4.5 |
| Terminal-Bench 2.1 | 78.3% | Coming soon | Coming soon |
| JobBench | 50.3% | 32.3% | Atria Dawn Preview |
| Terminal-Bench 2.0 | Coming soon | 59.3% | Coming soon |
| OSWorld-Verified | Coming soon | 66.3% | Coming soon |
| OSWorld | Coming soon | 66.3% | Coming soon |
| Claw-Eval | Coming soon | 59.6% | Coming soon |
| QwenClawBench | Coming soon | 52.3% | Coming soon |
| VITA-Bench | Coming soon | 23.3% | Coming soon |
| DeepPlanning | Coming soon | 26.4% | Coming soon |
| Toolathlon | Coming soon | 43.5% | Coming soon |
| MCP Atlas | Coming soon | 42.3% | Coming soon |
| MCP-Tasks | Coming soon | 71.8% | Coming soon |
| Gert Labs | Coming soon | 64.23% | Coming soon |

### Coding

- Winner: Coming soon
- Atria Dawn Preview public-lane score: 51.6 (Estimated · #51/152)
- Claude Opus 4.5 public-lane score: 56.7 (Estimated · #36/152)

| Benchmark | Atria Dawn Preview | Claude Opus 4.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 78.3% | Coming soon | Coming soon |
| SWE-bench Pro | 59.6% | 57.1% | Atria Dawn Preview |
| SWE-bench Verified | Coming soon | 80.9% | Coming soon |
| LiveCodeBench v6 | Coming soon | 84.8% | Coming soon |
| SWE Multilingual | Coming soon | 77.5% | Coming soon |
| NL2Repo | Coming soon | 43.2% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Claude Opus 4.5 public-lane score: 23.5 (#46/48)

| Benchmark | Atria Dawn Preview | Claude Opus 4.5 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 70.6% | Coming soon |
| MathVision | Coming soon | 74.3% | Coming soon |
| CharXiv | Coming soon | 68.5% | Coming soon |
| VideoMMMU | Coming soon | 84.4% | Coming soon |
| ScreenSpot Pro | Coming soon | 45.7% | Coming soon |
| V* | Coming soon | 67.0% | Coming soon |

### Reasoning

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Claude Opus 4.5 public-lane score: 72.1 (Unranked · 4 rankable rows)

| Benchmark | Atria Dawn Preview | Claude Opus 4.5 | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 64.4% | Coming soon |
| AI-Needle | Coming soon | 74% | Coming soon |

### Knowledge

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Claude Opus 4.5 public-lane score: 54 (Estimated · #60/183)

| Benchmark | Atria Dawn Preview | Claude Opus 4.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 87% | Coming soon |
| SuperGPQA | Coming soon | 70.6% | Coming soon |
| MMLU-Pro | Coming soon | 89.5% | Coming soon |
| MMLU-Redux | Coming soon | 96.6% | Coming soon |
| C-Eval | Coming soon | 92.2% | Coming soon |
| HLE | Coming soon | 30.8% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Claude Opus 4.5 public-lane score: 39.5 (#105/123)

| Benchmark | Atria Dawn Preview | Claude Opus 4.5 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 90.9% | Coming soon |
| IFBench | Coming soon | 58% | Coming soon |

### Multilingual

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Claude Opus 4.5 public-lane score: 82.9 (#2/12)

| Benchmark | Atria Dawn Preview | Claude Opus 4.5 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 85.7% | Coming soon |
| NOVA-63 | Coming soon | 56.7% | Coming soon |

### Mathematics

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Claude Opus 4.5 public-lane score: 58.3 (#6/7)

| Benchmark | Atria Dawn Preview | Claude Opus 4.5 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 95.1% | Coming soon |
| HMMT Feb 2025 | Coming soon | 92.9% | Coming soon |
| HMMT Nov 2025 | Coming soon | 93.3% | Coming soon |
| HMMT Feb 2026 | Coming soon | 85.3% | Coming soon |
| MMAnswerBench | Coming soon | 84.0% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 20.690% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 4.167% | Coming soon |

## FAQ

### Which is better overall, Atria Dawn Preview or Claude Opus 4.5?

Atria Dawn Preview is ahead overall on BenchLM right now.

### Where is the biggest gap between Atria Dawn Preview and Claude Opus 4.5?

The widest category gap is in agentic, where the averages are 57.9 for Atria Dawn Preview and 43.2 for Claude Opus 4.5.

### 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 Claude Opus 4.5 cover on BenchLM?

Claude Opus 4.5 currently has 45 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Atria Dawn Preview vs Claude Opus 4.5 Thinking](/compare/atria-dawn-preview-vs-claude-opus-4-5-thinking)
- [Claude Opus 4.5 vs Claude Opus 4.5 Thinking](/compare/claude-opus-4-5-vs-claude-opus-4-5-thinking)
- [Atria Dawn Preview vs Claude Fable 5.1](/compare/atria-dawn-preview-vs-claude-fable-5-1)
- [Claude Opus 4.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-claude-opus-4-5)

## Explore More

- [Atria Dawn Preview profile](/models/atria-dawn-preview)
- [Claude Opus 4.5 profile](/models/claude-opus-4-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)