# Claude Opus 4.5 Thinking vs GPT-4.1

> Side-by-side benchmark comparison for Claude Opus 4.5 Thinking and GPT-4.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-5-thinking-vs-gpt-4-1
- Last updated: September 4, 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 Claude Opus 4.5 Thinking and GPT-4.1.

## Summary

- Claude Opus 4.5 Thinking and GPT-4.1 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 | Claude Opus 4.5 Thinking | GPT-4.1 |
|----------|----------|----------|
| Creator | Anthropic | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 200K | 1M |
| Independent public score (not head-to-head) | 56.09 | 43.81 |
| Benchmarks Covered | 1 | 7 |
| Pricing (input/output) | N/A | $2.00 / $8.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: Coming soon
- GPT-4.1 public-lane score: Coming soon

| Benchmark | Claude Opus 4.5 Thinking | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | Coming soon | 25.65% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: 55.2 (Estimated · #41/183)
- GPT-4.1 public-lane score: 38.8 (Supported · #143/183)

| Benchmark | Claude Opus 4.5 Thinking | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 20.63% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 54.6% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: 69 (Unranked · 1 rankable row)
- GPT-4.1 public-lane score: 50.2 (Unranked · 1 rankable row)

### Reasoning

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: 75.7 (Unranked · 2 rankable rows)
- GPT-4.1 public-lane score: 67.2 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: 56.1 (Estimated · #54/181)
- GPT-4.1 public-lane score: 40.7 (Supported · #135/181)

| Benchmark | Claude Opus 4.5 Thinking | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| MMLU | Coming soon | 90.2% | Coming soon |
| GPQA | Coming soon | 66.3% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: 69.7 (#63/120)
- GPT-4.1 public-lane score: 50.3 (#80/120)

| Benchmark | Claude Opus 4.5 Thinking | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 87.4% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: Coming soon
- GPT-4.1 public-lane score: 28.1 (Unranked · 2 rankable rows)

| Benchmark | Claude Opus 4.5 Thinking | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 5.517% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 0.000% | Coming soon |

## FAQ

### Can I compare Claude Opus 4.5 Thinking and GPT-4.1 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

- [Claude Opus 4.5 Thinking vs Claude Opus 4.5](/compare/claude-opus-4-5-vs-claude-opus-4-5-thinking)
- [GPT-4.1 vs Claude Opus 4.5](/compare/claude-opus-4-5-vs-gpt-4-1)
- [Claude Opus 4.5 Thinking vs GPT-4.1 mini](/compare/claude-opus-4-5-thinking-vs-gpt-4-1-mini)
- [GPT-4.1 vs GPT-4.1 mini](/compare/gpt-4-1-vs-gpt-4-1-mini)

## Explore More

- [Claude Opus 4.5 Thinking profile](/models/claude-opus-4-5-thinking)
- [GPT-4.1 profile](/models/gpt-4-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)