# Claude 3.5 Sonnet vs GPT-4.1

> Side-by-side benchmark comparison for Claude 3.5 Sonnet and GPT-4.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-3-5-sonnet-vs-gpt-4-1
- Last updated: September 29, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick GPT-4.1 if you want the stronger benchmark profile. Claude 3.5 Sonnet only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-4.1 leads overall 39.74 to 30.
- The clearest category separation is in mathematics, where the averages are 25.6 for Claude 3.5 Sonnet and 28 for GPT-4.1.
- The biggest single benchmark swing is GPQA in Knowledge, with scores of 59.4% and 66.3%.
- GPT-4.1 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-4.1 also has the larger context window at 1M.

## Model Snapshot

| Property | Claude 3.5 Sonnet | GPT-4.1 |
|----------|----------|----------|
| Creator | Anthropic | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 200K | 1M |
| Overall Score | 30 | 39.74 |
| Benchmarks Covered | 4 | 7 |
| Pricing (input/output) | $3.00 / $15.00 | $2.00 / $8.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Claude 3.5 Sonnet public-lane score: Coming soon
- GPT-4.1 public-lane score: Coming soon

| Benchmark | Claude 3.5 Sonnet | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | Coming soon | 25.65% | Coming soon |

### Coding

- Winner: Not comparable
- Claude 3.5 Sonnet public-lane score: Coming soon
- GPT-4.1 public-lane score: Coming soon

| Benchmark | Claude 3.5 Sonnet | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 49% | 54.6% | GPT-4.1 |

### Reasoning

- Winner: Not comparable
- Claude 3.5 Sonnet public-lane score: Coming soon
- GPT-4.1 public-lane score: 69.2 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Not comparable
- Claude 3.5 Sonnet public-lane score: Coming soon
- GPT-4.1 public-lane score: 51.3 (Unranked · 1 rankable row)

### Knowledge

- Winner: Not comparable
- Claude 3.5 Sonnet public-lane score: Coming soon
- GPT-4.1 public-lane score: 35.5 (Supported · #116/169)

| Benchmark | Claude 3.5 Sonnet | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 59.4% | 66.3% | GPT-4.1 |
| MMLU | Coming soon | 90.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Claude 3.5 Sonnet public-lane score: Coming soon
- GPT-4.1 public-lane score: 48.9 (#83/124)

| Benchmark | Claude 3.5 Sonnet | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 87.4% | Coming soon |

### Mathematics

- Winner: Not comparable
- Claude 3.5 Sonnet public-lane score: 25.6 (Unranked · 2 rankable rows)
- GPT-4.1 public-lane score: 28 (Unranked · 2 rankable rows)

| Benchmark | Claude 3.5 Sonnet | GPT-4.1 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 2.069% | 5.517% | GPT-4.1 |
| FrontierMath v2 (Tier 4) | 0.000% | 0.000% | Tie |

## FAQ

### Which is better overall, Claude 3.5 Sonnet or GPT-4.1?

GPT-4.1 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude 3.5 Sonnet and GPT-4.1?

The widest category gap is in mathematics, where the averages are 25.6 for Claude 3.5 Sonnet and 28 for GPT-4.1.

### How many benchmarks does Claude 3.5 Sonnet cover on BenchLM?

Claude 3.5 Sonnet currently has 4 sourced benchmark scores on BenchLM.

### How many benchmarks does GPT-4.1 cover on BenchLM?

GPT-4.1 currently has 7 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude 3.5 Sonnet vs GPT-4.1 mini](/compare/claude-3-5-sonnet-vs-gpt-4-1-mini)
- [GPT-4.1 vs GPT-4.1 mini](/compare/gpt-4-1-vs-gpt-4-1-mini)
- [Claude 3.5 Sonnet vs GPT-4.1 nano](/compare/claude-3-5-sonnet-vs-gpt-4-1-nano)
- [GPT-4.1 vs GPT-4.1 nano](/compare/gpt-4-1-vs-gpt-4-1-nano)

## Explore More

- [Claude 3.5 Sonnet profile](/models/claude-3-5-sonnet)
- [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)