# Claude Opus 4.7 (Adaptive) vs GPT-5.5

> Side-by-side benchmark comparison for Claude Opus 4.7 (Adaptive) and GPT-5.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-7-adaptive-vs-gpt-5-5
- Last updated: September 4, 2026

- Shared sourced benchmarks: 18
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick GPT-5.5 if you want the stronger benchmark profile. Claude Opus 4.7 (Adaptive) only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.5 leads overall 73.27 to 69.94.
- The clearest category separation is in multimodal & grounded, where the averages are 50.3 for Claude Opus 4.7 (Adaptive) and 71.3 for GPT-5.5.
- The biggest single benchmark swing is MRCR v2 128K-256K in Reasoning, with scores of 59.2% and 87.5%.
- Claude Opus 4.7 (Adaptive) is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Claude Opus 4.7 (Adaptive) | GPT-5.5 |
|----------|----------|----------|
| Creator | Anthropic | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 69.94 | 73.27 |
| Benchmarks Covered | 21 | 38 |
| Pricing (input/output) | $5.00 / $25.00 | $5.00 / $30.00 |

## Category Breakdown

### Agentic

- Winner: GPT-5.5
- Claude Opus 4.7 (Adaptive) public-lane score: 61 (Supported · #21/151)
- GPT-5.5 public-lane score: 63.9 (Supported · #15/151)

| Benchmark | Claude Opus 4.7 (Adaptive) | GPT-5.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 69.4% | 82% | GPT-5.5 |
| BrowseComp | 79.3% | 84.4% | GPT-5.5 |
| MCP Atlas | 77.3% | 75.3% | Claude Opus 4.7 (Adaptive) |
| OSWorld-Verified | 78% | 78.7% | GPT-5.5 |
| CyberGym | 73.1% | 81.8% | GPT-5.5 |
| OSWorld 2.0 | 18.2% | 13.0% | Claude Opus 4.7 (Adaptive) |
| JobBench | 45.9% | 42.7% | Claude Opus 4.7 (Adaptive) |
| Toolathlon | Coming soon | 55.6% | Coming soon |
| τ²-bench results | Coming soon | 98% | Coming soon |
| Gert Labs | Coming soon | 72.93% | Coming soon |
| ResearchClawBench | Coming soon | 17.0% | Coming soon |
| ExploitGym | Coming soon | 13.4% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 76.4% | Coming soon |

### Coding

- Winner: Coming soon
- Claude Opus 4.7 (Adaptive) public-lane score: 59.6 (Estimated · #27/183)
- GPT-5.5 public-lane score: 67.7 (Supported · #8/183)

| Benchmark | Claude Opus 4.7 (Adaptive) | GPT-5.5 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 87.6% | Coming soon | Coming soon |
| SWE-bench Pro | 64.3% | 58.6% | Claude Opus 4.7 (Adaptive) |
| Terminal-Bench 2.0 | 69.4% | 82.0% | GPT-5.5 |
| Vibe Code Bench | Coming soon | 69.85% | Coming soon |
| React Native Evals | Coming soon | 84.7% | Coming soon |
| cursorBench31 | Coming soon | 59.2% | Coming soon |
| cursorBench32 | Coming soon | 58.4% | Coming soon |
| FrontierCode 1.1 Main | Coming soon | 43.0% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 85.3% | Coming soon |
| SWE-bench (Vals) | Coming soon | 82.6% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Claude Opus 4.7 (Adaptive) public-lane score: 50.3 (#36/48)
- GPT-5.5 public-lane score: 71.3 (#19/48)

| Benchmark | Claude Opus 4.7 (Adaptive) | GPT-5.5 | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 43.6% | 54.1% | GPT-5.5 |
| CharXiv | 91% | Coming soon | Coming soon |
| CharXiv w/o tools | 82.1% | Coming soon | Coming soon |
| MMMU-Pro | Coming soon | 81.2% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 83.2% | Coming soon |

### Reasoning

- Winner: Coming soon
- Claude Opus 4.7 (Adaptive) public-lane score: 49.7 (Unranked · 3 rankable rows)
- GPT-5.5 public-lane score: 63.5 (#15/22)

| Benchmark | Claude Opus 4.7 (Adaptive) | GPT-5.5 | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 128K-256K | 59.2% | 87.5% | GPT-5.5 |
| ARC-AGI-2 | 75.8% | 85% | GPT-5.5 |
| ARC-AGI-3 | 0.2% | 0.4% | GPT-5.5 |
| MRCR v2 64K-128K | Coming soon | 83.1% | Coming soon |

### Knowledge

- Winner: Coming soon
- Claude Opus 4.7 (Adaptive) public-lane score: 61.9 (Estimated · #31/181)
- GPT-5.5 public-lane score: 73.3 (Supported · #7/181)

| Benchmark | Claude Opus 4.7 (Adaptive) | GPT-5.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 94.2% | 93.6% | Claude Opus 4.7 (Adaptive) |
| GPQA-D | 94.2% | 93.6% | Claude Opus 4.7 (Adaptive) |
| HLE | 54.7% | 52.2% | Claude Opus 4.7 (Adaptive) |
| HLE w/o tools | 46.9% | 41.4% | Claude Opus 4.7 (Adaptive) |
| GPQA Diamond (Vals) | Coming soon | 93.2% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 88.1% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Claude Opus 4.7 (Adaptive) public-lane score: Coming soon
- GPT-5.5 public-lane score: 92.9 (#7/120)

### Mathematics

- Winner: Coming soon
- Claude Opus 4.7 (Adaptive) public-lane score: Coming soon
- GPT-5.5 public-lane score: 69.6 (Unranked · 3 rankable rows)

| Benchmark | Claude Opus 4.7 (Adaptive) | GPT-5.5 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath (legacy) | 43.8% | 51.7% | GPT-5.5 |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 51.700% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 35.400% | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.7 (Adaptive) or GPT-5.5?

GPT-5.5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Opus 4.7 (Adaptive) and GPT-5.5?

The widest category gap is in multimodal & grounded, where the averages are 50.3 for Claude Opus 4.7 (Adaptive) and 71.3 for GPT-5.5.

### How many benchmarks does Claude Opus 4.7 (Adaptive) cover on BenchLM?

Claude Opus 4.7 (Adaptive) currently has 21 sourced benchmark scores on BenchLM.

### How many benchmarks does GPT-5.5 cover on BenchLM?

GPT-5.5 currently has 38 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Opus 4.7 (Adaptive) vs Claude Opus 4.7](/compare/claude-opus-4-7-vs-claude-opus-4-7-adaptive)
- [GPT-5.5 vs Claude Opus 4.7](/compare/claude-opus-4-7-vs-gpt-5-5)
- [Claude Opus 4.7 (Adaptive) vs GPT-5.5 Pro](/compare/claude-opus-4-7-adaptive-vs-gpt-5-5-pro)
- [GPT-5.5 vs GPT-5.5 Pro](/compare/gpt-5-5-vs-gpt-5-5-pro)

## Explore More

- [Claude Opus 4.7 (Adaptive) profile](/models/claude-opus-4-7-adaptive)
- [GPT-5.5 profile](/models/gpt-5-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)