Model Comparison
Llama 4 Scout
vs. GPT-5.5 (xhigh)
Comparing 2 AI models · 12 benchmarks · Meta, OpenAI
Recommended Pick
Op GPT-5.5 (xhigh) 10 metric wins Strongest on: Reasoning, Intelligence, Coding
Best Value
Llama 4 Scout
100.0 value score
30.5 reasoning / $0.29/1M
Lowest Price
Llama 4 Scout
$0.17/1M input price
Best Reasoning
GPT-5.5 (xhigh)
64.2 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
Llama 4 Scout has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Llama 4 Scout is 29.4x cheaper on input tokens than GPT-5.5 (xhigh).
Speed gap
Llama 4 Scout generates about 1.6x as many tokens per second as GPT-5.5 (xhigh).
Reasoning gap
GPT-5.5 (xhigh) leads Llama 4 Scout by 33.7 points on reasoning.
Coding gap
GPT-5.5 (xhigh) leads Llama 4 Scout by 52.4 points on coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Llama 4 Scout
Meta
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
GPT-5.5 (xhigh)
OpenAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Full Comparison
| Metric | Me Llama 4 Scout | Top Pick Op GPT-5.5 (xhigh) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.17/1M | $5.00/1M |
| Output Cost | $0.66/1M | $30.00/1M |
| Blended (3:1) | $0.29/1M | $11.25/1M |
| Specifications | ||
| Organization | Meta | OpenAI |
| Release Date | Apr 5, 2025 | Apr 23, 2026 |
| Performance & Speed | ||
| Throughput | 107.8 tok/s | 66.6 tok/s |
| TTFT | 610ms | 60724ms |
| Latency | 610ms | 60724ms |
| Composite Indices | ||
| Value Score | 100.0 | 5.5 |
| Reasoning Score | 30.5 | 64.2 |
| Intelligence | 10.0 | 54.8 |
| Coding | 6.7 | 59.1 |
| Math | 14.0 | — |
| Standard Benchmarks | ||
| GPQA | 58.7% | 93.5% |
| MMLU Pro | 75.2% | — |
| HLE | 4.3% | 44.3% |
| LiveCodeBench | 29.9% | — |
| MATH 500 | 84.4% | — |
| AIME 2025 | 14.0% | — |
| AIME (Original) | 28.3% | — |
| SciCode | 17.0% | 56.1% |
| LCR | 25.8% | 74.3% |
| IFBench | 39.5% | 75.9% |
| TAU-bench v2 | 15.5% | 93.9% |
| TerminalBench Hard | 1.5% | 60.6% |
Key Takeaways
Llama 4 Scout offers the best value at $0.17/1M, making it ideal for high-volume applications and cost-conscious projects.
GPT-5.5 (xhigh) has the strongest reasoning profile with a 64.2 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
Llama 4 Scout
- Cost-sensitive applications
- High-volume processing
GPT-5.5 (xhigh)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
