Claude Sonnet 4 vs GPT-4.1 (Comparative Analysis)
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Comparative Analysis: Claude Sonnet 4 vs. GPT-4.1
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Overview
GPT-4.1 was released 1 month before Claude Sonnet 4.
 Claude Sonnet 4 |  GPT-4.1 | |
|---|---|---|
Model Provider The organization behind this AI's development | Anthropic | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 1M tokens | 1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | 64K tokens | Not specified tokens |
Release Date When this model first became publicly available | May 22, 2025 1 year ago May 22nd, 2025 | April 14, 2025 1 year ago April 14th, 2025 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Claude Sonnet 4 | GPT-4.1 | |
|---|---|---|
Input Types Supported input formats | 🖼️Image📝Text📁File | 🖼️Image📝Text📁File |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Claude | GPT |
Key Features Advanced capabilities | ✓Function CallingStructured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured OutputReasoning ModeContent Moderation |
Pricing
Claude Sonnet 4 is roughly 1.5x more expensive compared to GPT-4.1 for input tokens and roughly 1.9x more expensive for output tokens.
| Claude Sonnet 4 | GPT-4.1 | |
|---|---|---|
Input Token Cost Cost per million input tokens | $3.00 per million tokens | $2.00 per million tokens |
Output Token Cost Cost per million outut tokens | $15.00 per million tokens | $8.00 per million tokens |
Benchmarks
Compare relevant benchmarks between Claude Sonnet 4 and GPT-4.1.
| Claude Sonnet 4 | GPT-4.1 | |
|---|---|---|
MMLU Measures knowledge across 57 subjects like law, math, history, and science | Benchmark not available. | Benchmark not available. |
MMMU Measures understanding of combined text and images across various domains | Benchmark not available. | Benchmark not available. |
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations | Benchmark not available. | Benchmark not available. |
At a Glance
Quick overview of what makes Claude Sonnet 4 and GPT-4.1 unique.
Claude Sonnet 4 by Anthropic understands both text and images, can use external tools and APIs, offers advanced reasoning. It can handle standard conversations with its 1M token context window. Premium pricing at $3.00/M input and $15.00/M output tokens. Released May 22nd, 2025.GPT-4.1 by OpenAI understands both text and images, can use external tools and APIs, generates structured data. It can handle standard conversations with its 1M token context window. Reasonably priced at $2.00/M input and $8.00/M output tokens. Released April 14th, 2025.Explore More Comparisons
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🔬Science
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