# Claude Opus 4.5 vs Claude Opus 5

> Side-by-side benchmark comparison for Claude Opus 4.5 and Claude Opus 5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

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

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

## Quick Verdict

Pick Claude Opus 5 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

- Claude Opus 5 leads overall 80.66 to 60.24.
- The clearest category separation is in multimodal & grounded, where the averages are 23.5 for Claude Opus 4.5 and 88.7 for Claude Opus 5.
- The biggest single benchmark swing is MCP Atlas in Agentic, with scores of 42.3% and 85.8%.
- Claude Opus 4.5 also has the larger context window at 200K.

## Model Snapshot

| Property | Claude Opus 4.5 | Claude Opus 5 |
|----------|----------|----------|
| Creator | Anthropic | Anthropic |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | null |
| Overall Score | 60.24 | 80.66 |
| Benchmarks Covered | 45 | 73 |
| Pricing (input/output) | $5.00 / $25.00 | $5.00 / $25.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 44.4 (Estimated · #101/151)
- Claude Opus 5 public-lane score: 77.4 (Supported · #2/151)

| Benchmark | Claude Opus 4.5 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 59.3% | Coming soon | Coming soon |
| OSWorld-Verified | 66.3% | Coming soon | Coming soon |
| OSWorld | 66.3% | Coming soon | Coming soon |
| Claw-Eval | 59.6% | Coming soon | Coming soon |
| QwenClawBench | 52.3% | Coming soon | Coming soon |
| τ³-bench results | 70.2% | Coming soon | Coming soon |
| VITA-Bench | 23.3% | Coming soon | Coming soon |
| DeepPlanning | 26.4% | Coming soon | Coming soon |
| Toolathlon | 43.5% | Coming soon | Coming soon |
| MCP Atlas | 42.3% | 85.8% | Claude Opus 5 |
| MCP-Tasks | 71.8% | Coming soon | Coming soon |
| WideResearch | 76.4% | Coming soon | Coming soon |
| CyberGym | 50.6% | Coming soon | Coming soon |
| Gert Labs | 64.23% | Coming soon | Coming soon |
| JobBench | 32.3% | Coming soon | Coming soon |
| Terminal-Bench 3.0 | Coming soon | 42.7% | Coming soon |
| BrowseComp | Coming soon | 90.8% | Coming soon |
| HLE w/ tools | Coming soon | 64.7% | Coming soon |
| DeepSearchQA | Coming soon | 95.0% | Coming soon |
| DRACO | Coming soon | 88.6% | Coming soon |
| BrowseComp (10-agent, prerelease) | Coming soon | 93.6% | Coming soon |
| OSWorld 2.0 | Coming soon | 70.6% | Coming soon |
| MCP-Atlas claim coverage | Coming soon | 89.1% | Coming soon |
| LAB all-pass (Anthropic harness) | Coming soon | 23.58% | Coming soon |
| LAB criterion-pass (Anthropic harness) | Coming soon | 93.74% | Coming soon |
| LAB all-pass (Harvey held-out) | Coming soon | 11.7% | Coming soon |
| LAB criterion-pass (Harvey held-out) | Coming soon | 94.1% | Coming soon |
| Toolathlon-Verified | Coming soon | 80.6% | Coming soon |
| Toolathlon Verified Pass@3 | Coming soon | 87.0% | Coming soon |
| Toolathlon Verified Pass³ | Coming soon | 73.1% | Coming soon |
| Toolathlon Verified avg. turns | Coming soon | 23.5 turns | Coming soon |
| AutomationBench | Coming soon | 26.0% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 84.6% | Coming soon |

### Coding

- Winner: Claude Opus 5
- Claude Opus 4.5 public-lane score: 55.1 (Supported · #42/183)
- Claude Opus 5 public-lane score: 75.6 (Supported · #3/183)

| Benchmark | Claude Opus 4.5 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.9% | 96% | Claude Opus 5 |
| LiveCodeBench v6 | 84.8% | Coming soon | Coming soon |
| SWE-bench Pro | 57.1% | 79.2% | Claude Opus 5 |
| SWE Multilingual | 77.5% | 89.5% | Claude Opus 5 |
| NL2Repo | 43.2% | Coming soon | Coming soon |
| Bug Hunt Bench | Coming soon | 27 fixes | Coming soon |
| SWE Multimodal | Coming soon | 59.4% | Coming soon |
| deepSwe | Coming soon | 68.8% | Coming soon |
| FrontierCode 1.1 Main | Coming soon | 53.4% | Coming soon |
| FrontierCode 1.1 Extended | Coming soon | 63.6% | Coming soon |
| FrontierSWE v2 | Coming soon | 52.0% | Coming soon |
| ProgramBench (episode 1) | Coming soon | 83.0% | Coming soon |
| ProgramBench | Coming soon | 93.0% | Coming soon |
| cursorBench32 | Coming soon | 70.0% | Coming soon |
| VulcanBench v3 | Coming soon | 87.0% | Coming soon |
| VulcanBench CII v1 | Coming soon | 96.4% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 89.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 97.0% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 23.5 (#46/48)
- Claude Opus 5 public-lane score: 88.7 (#2/48)

| Benchmark | Claude Opus 4.5 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 70.6% | Coming soon | Coming soon |
| MathVision | 74.3% | Coming soon | Coming soon |
| CharXiv | 68.5% | Coming soon | Coming soon |
| VideoMMMU | 84.4% | Coming soon | Coming soon |
| ScreenSpot Pro | 45.7% | Coming soon | Coming soon |
| V* | 67.0% | Coming soon | Coming soon |
| Chartography (no tools) | Coming soon | 29.6% | Coming soon |
| Chartography (tools) | Coming soon | 83.0% | Coming soon |
| BenchCAD Vision2Code (no tools) | Coming soon | 0.366 | Coming soon |
| BenchCAD Vision2Code (tools) | Coming soon | 0.821 | Coming soon |
| GDP.pdf (no tools) | Coming soon | 83.4% | Coming soon |
| GDP.pdf (tools) | Coming soon | 85.5% | Coming soon |
| OfficeQA | Coming soon | 78.1% | Coming soon |
| OfficeQA Pro | Coming soon | 66.9% | Coming soon |

### Reasoning

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 72.1 (Unranked · 4 rankable rows)
- Claude Opus 5 public-lane score: 75.6 (#13/22)

| Benchmark | Claude Opus 4.5 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 64.4% | Coming soon | Coming soon |
| AI-Needle | 74% | Coming soon | Coming soon |
| ARC-AGI-1 | Coming soon | 97.50% | Coming soon |
| ARC-AGI-2 | Coming soon | 90.4% | Coming soon |
| ARC-AGI-3 | Coming soon | 30.2% | Coming soon |

### Knowledge

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 55.4 (Estimated · #60/181)
- Claude Opus 5 public-lane score: 82.1 (Supported · #3/181)

| Benchmark | Claude Opus 4.5 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 87% | Coming soon | Coming soon |
| SuperGPQA | 70.6% | Coming soon | Coming soon |
| MMLU-Pro | 89.5% | Coming soon | Coming soon |
| MMLU-Redux | 96.6% | Coming soon | Coming soon |
| C-Eval | 92.2% | Coming soon | Coming soon |
| HLE | 30.8% | 64.7% | Claude Opus 5 |
| HLE w/o tools | Coming soon | 56.3% | Coming soon |
| HLE-Verified | Coming soon | 54.4% | Coming soon |
| LABBench2 | Coming soon | 84.2% | Coming soon |
| HealthBench (raw) | Coming soon | 67.1% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 57.8% | Coming soon |
| HealthBench Professional | Coming soon | 59.8% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 73.4% | Coming soon |
| BioMysteryBench (human-solvable) | Coming soon | 90.1% | Coming soon |
| BioMysteryBench (human-difficult) | Coming soon | 49.4% | Coming soon |
| SpatialBench Verified | Coming soon | 72.5% | Coming soon |
| SingleCellBench | Coming soon | 60.6% | Coming soon |
| ProteinGym Hard | Coming soon | 47.7% | Coming soon |
| Protein Design | Coming soon | 42.5% | Coming soon |
| Organic chemistry V2 | Coming soon | 61.6% | Coming soon |
| Protocols (troubleshooting) | Coming soon | 61.1% | Coming soon |
| Protocols (understanding) | Coming soon | 78.4% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 93.4% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 91.6% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 39.5 (#103/120)
- Claude Opus 5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.5 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 90.9% | Coming soon | Coming soon |
| IFBench | 58% | Coming soon | Coming soon |

### Multilingual

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 82.9 (#2/12)
- Claude Opus 5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.5 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | 85.7% | Coming soon | Coming soon |
| NOVA-63 | 56.7% | Coming soon | Coming soon |
| GMMLU | Coming soon | 92.5% | Coming soon |
| MILU | Coming soon | 92.1% | Coming soon |
| INCLUDE | Coming soon | 89.8% | Coming soon |

### Mathematics

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 58.3 (#6/7)
- Claude Opus 5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.5 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.1% | Coming soon | Coming soon |
| HMMT Feb 2025 | 92.9% | Coming soon | Coming soon |
| HMMT Nov 2025 | 93.3% | Coming soon | Coming soon |
| HMMT Feb 2026 | 85.3% | Coming soon | Coming soon |
| MMAnswerBench | 84.0% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 20.690% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 4.167% | Coming soon | Coming soon |
| IMO 2026 | Coming soon | 42/42 | Coming soon |
| RiemannBench (no tools) | Coming soon | 60.0% | Coming soon |
| RiemannBench (tools) | Coming soon | 79.0% | Coming soon |
| ArXivMath Jun. 2026 (no tools) | Coming soon | 90.8% | Coming soon |
| ArXivMath Jun. 2026 (tools) | Coming soon | 91.3% | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.5 or Claude Opus 5?

Claude Opus 5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Opus 4.5 and Claude Opus 5?

The widest category gap is in multimodal & grounded, where the averages are 23.5 for Claude Opus 4.5 and 88.7 for Claude Opus 5.

### How many benchmarks does Claude Opus 4.5 cover on BenchLM?

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

### How many benchmarks does Claude Opus 5 cover on BenchLM?

Claude Opus 5 currently has 73 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Opus 4.5 vs Claude Opus 4.5 Thinking](/compare/claude-opus-4-5-vs-claude-opus-4-5-thinking)
- [Claude Opus 5 vs Claude Opus 4.5 Thinking](/compare/claude-opus-4-5-thinking-vs-claude-opus-5)
- [Claude Opus 4.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-claude-opus-4-5)
- [Claude Opus 5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-claude-opus-5)

## Explore More

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