Model Comparison
Claude 3 Opus
vs. GPT-5.5 (xhigh)
Comparing 2 AI models · 11 benchmarks · Anthropic, OpenAI
Recommended Pick
Op GPT-5.5 (xhigh) 11 metric wins Strongest on: Value, Input price, Output price
Best Value
GPT-5.5 (xhigh)
100.0 value score
66.0 reasoning / $11.25/1M
Lowest Price
GPT-5.5 (xhigh)
$5.00/1M input price
Best Reasoning
GPT-5.5 (xhigh)
66.0 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5.5 (xhigh)
59.1 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Best value
GPT-5.5 (xhigh) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
GPT-5.5 (xhigh) is 3.8x cheaper on input tokens than Claude 3 Opus.
Reasoning gap
GPT-5.5 (xhigh) leads Claude 3 Opus by 38.5 points on reasoning.
Coding gap
GPT-5.5 (xhigh) leads Claude 3 Opus by 39.6 points on coding.
Top-pick rationale
GPT-5.5 (xhigh) wins 11 measurable categories, including Value, Input price, Output price, Blended price.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Claude 3 Opus
Anthropic
TTFT
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Time
—
tok/s
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Tokens
—
Cost
—
GPT-5.5 (xhigh)
OpenAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Full Comparison
| Metric | An Claude 3 Opus | Top Pick Op GPT-5.5 (xhigh) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $18.75/1M | $5.00/1M |
| Output Cost | $75.00/1M | $30.00/1M |
| Blended (3:1) | $32.81/1M | $11.25/1M |
| Specifications | ||
| Organization | Anthropic | OpenAI |
| Release Date | Mar 4, 2024 | Apr 23, 2026 |
| Performance & Speed | ||
| Throughput | — | 54.2 tok/s |
| TTFT | — | 44557ms |
| Latency | — | 44557ms |
| Composite Indices | ||
| Value Score | 14.3 | 100.0 |
| Reasoning Score | 27.5 | 66.0 |
| Intelligence | 18.0 | 60.2 |
| Coding | 19.5 | 59.1 |
| Standard Benchmarks | ||
| GPQA | 48.9% | 93.5% |
| MMLU Pro | 69.6% | — |
| HLE | 3.1% | 44.3% |
| LiveCodeBench | 27.9% | — |
| MATH 500 | 64.1% | — |
| AIME (Original) | 3.3% | — |
| SciCode | 23.3% | 56.1% |
| LCR | — | 74.3% |
| IFBench | — | 75.9% |
| TAU-bench v2 | — | 93.9% |
| TerminalBench Hard | — | 60.6% |
Key Takeaways
GPT-5.5 (xhigh) offers the best value at $5.00/1M, making it ideal for high-volume applications and cost-conscious projects.
GPT-5.5 (xhigh) has the strongest reasoning profile with a 66.0 reasoning score, combining the available reasoning-heavy benchmarks.
GPT-5.5 (xhigh) reaches a 59.1 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 Opus
- General-purpose AI
- Versatile applications
GPT-5.5 (xhigh)
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
