Model Comparison
Claude 3.7 Sonnet (Reasoning)
vs. GPT-5.1 (high)
Comparing 2 AI models · 12 benchmarks · Anthropic, OpenAI
Recommended Pick
Op GPT-5.1 (high) 15 metric wins Strongest on: Throughput, Reasoning, Intelligence
Lowest Price
Claude 3.7 Sonnet (Reasoning)
$0.00/1M input price
Best Reasoning
GPT-5.1 (high)
69.9 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5.1 (high)
44.7 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Price gap
Claude 3.7 Sonnet (Reasoning) is ∞x cheaper on input tokens than GPT-5.1 (high).
Reasoning gap
GPT-5.1 (high) leads Claude 3.7 Sonnet (Reasoning) by 15.9 points on reasoning.
Coding gap
GPT-5.1 (high) leads Claude 3.7 Sonnet (Reasoning) by 17.1 points on coding.
Top-pick rationale
GPT-5.1 (high) wins 15 measurable categories, including Throughput, Reasoning, Intelligence, Coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Claude 3.7 Sonnet (Reasoning)
Anthropic
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
GPT-5.1 (high)
OpenAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Full Comparison
| Metric | An Claude 3.7 Sonnet (Reasoning) | Top Pick Op GPT-5.1 (high) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.00/1M | $1.25/1M |
| Output Cost | $0.00/1M | $10.00/1M |
| Blended (3:1) | — | $3.44/1M |
| Specifications | ||
| Organization | Anthropic | OpenAI |
| Release Date | Feb 24, 2025 | Nov 13, 2025 |
| Performance & Speed | ||
| Throughput | — | 114.4 tok/s |
| TTFT | — | 20999ms |
| Latency | — | 20999ms |
| Composite Indices | ||
| Value Score | — | 100.0 |
| Reasoning Score | 54.0 | 69.9 |
| Intelligence | 34.7 | 47.7 |
| Coding | 27.6 | 44.7 |
| Math | 56.3 | 94.0 |
| Standard Benchmarks | ||
| GPQA | 77.2% | 87.3% |
| MMLU Pro | 83.7% | 87.0% |
| HLE | 10.3% | 26.5% |
| LiveCodeBench | 47.3% | 86.8% |
| MATH 500 | 94.7% | — |
| AIME 2025 | 56.3% | 94.0% |
| AIME (Original) | 48.7% | — |
| SciCode | 40.3% | 43.3% |
| LCR | 60.7% | 75.0% |
| IFBench | 48.3% | 72.9% |
| TAU-bench v2 | 54.7% | 81.9% |
| TerminalBench Hard | 21.2% | 45.5% |
Key Takeaways
Claude 3.7 Sonnet (Reasoning) offers the best value at $0.00/1M, making it ideal for high-volume applications and cost-conscious projects.
GPT-5.1 (high) has the strongest reasoning profile with a 69.9 reasoning score, combining the available reasoning-heavy benchmarks.
GPT-5.1 (high) reaches a 44.7 coding index, making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens, suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Claude 3.7 Sonnet (Reasoning)
- Cost-sensitive applications
- High-volume processing
GPT-5.1 (high)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
