# Claude Opus 4.6 vs GPT-4.5

> Side-by-side benchmark comparison for Claude Opus 4.6 and GPT-4.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-6-vs-gpt-4-5
- Last updated: October 14, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Opus 4.6 and GPT-4.5 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.
- Claude Opus 4.6 has the lower published output-token price.
- Claude Opus 4.6 has the larger published context window at 1M.

## Model Snapshot

| Property | Claude Opus 4.6 | GPT-4.5 |
|----------|----------|----------|
| Creator | Anthropic | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 1M | 128K |
| Independent public score (not head-to-head) | 61.47 | null |
| Benchmarks Covered | 36 | 6 |
| Pricing (input/output) | $5.00 / $25.00 | $75.00 / $150.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 46.1 (Supported · #55/124)
- GPT-4.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | GPT-4.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 65.4% | Coming soon | Coming soon |
| BrowseComp | 83.7% | Coming soon | Coming soon |
| OSWorld-Verified | 72.7% | Coming soon | Coming soon |
| AndroidWorld | 62.0% | Coming soon | Coming soon |
| Claw-Eval | 70.4% | Coming soon | Coming soon |
| DeepSearchQA | 73.7% | Coming soon | Coming soon |
| CyberGym | 66.6% | Coming soon | Coming soon |
| Gert Labs | 61.85% | Coming soon | Coming soon |
| ResearchClawBench | 19.9% | Coming soon | Coming soon |
| JobBench | 36.7% | Coming soon | Coming soon |
| ApprenticeBench | 5% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 46.2 (Supported · #51/148)
- GPT-4.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | GPT-4.5 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.8% | Coming soon | Coming soon |
| SWE-bench Verified* | 75.6% | Coming soon | Coming soon |
| LiveCodeBench Pro | 70.7% | Coming soon | Coming soon |
| SWE-bench Pro | 53.4% | Coming soon | Coming soon |
| SWE-Rebench | 65.3% | Coming soon | Coming soon |
| React Native Evals | 84.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 65.4% | Coming soon | Coming soon |
| Vibe Code Bench | 57.57% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 26.9% | Coming soon | Coming soon |
| HumanEval | Coming soon | 88.6% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 71.9 (Unranked · 2 rankable rows)
- GPT-4.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | GPT-4.5 | Winner |
|-----------|-----------|-----------|--------|
| DROP | Coming soon | 83.4% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 74.5 (#25/54)
- GPT-4.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | GPT-4.5 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 77.3% | Coming soon | Coming soon |
| ERQA | 51.6% | Coming soon | Coming soon |
| ScreenSpot Pro | 83.1% | Coming soon | Coming soon |
| MedXpertQA (MM) | 64.8% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 58.8 (Estimated · #51/181)
- GPT-4.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | GPT-4.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 91.3% | 69.5% | Claude Opus 4.6 |
| GPQA-D | 89.2% | Coming soon | Coming soon |
| SuperGPQA | 95% | Coming soon | Coming soon |
| MMLU-Pro | 82% | Coming soon | Coming soon |
| MMLU-Pro (Arcee) | 89.1% | Coming soon | Coming soon |
| HLE | 53% | Coming soon | Coming soon |
| HLE w/o tools | 40% | Coming soon | Coming soon |
| HealthBench Hard | 14.8% | Coming soon | Coming soon |
| MedXpertQA (Text) | 52.1% | Coming soon | Coming soon |
| MMLU | Coming soon | 90.8% | Coming soon |
| SimpleQA | Coming soon | 62.5% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: Coming soon
- GPT-4.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | GPT-4.5 | Winner |
|-----------|-----------|-----------|--------|
| MGSM | Coming soon | 86.9% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 52.4 (#80/128)
- GPT-4.5 public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 69.1 (Unranked · 3 rankable rows)
- GPT-4.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | GPT-4.5 | Winner |
|-----------|-----------|-----------|--------|
| AIME25 (Arcee) | 99.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 65.965% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 26.829% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Opus 4.6 and GPT-4.5?

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

- [Claude Opus 4.6 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-vs-claude-opus-4-6-thinking)
- [GPT-4.5 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-thinking-vs-gpt-4-5)
- [Claude Opus 4.6 vs Claude Opus 5.5](/compare/claude-opus-4-6-vs-claude-opus-5-5)
- [GPT-4.5 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gpt-4-5)

## Explore More

- [Claude Opus 4.6 profile](/models/claude-opus-4-6)
- [GPT-4.5 profile](/models/gpt-4-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)